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Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 26, 2015	Oct. 29, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 26, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	FARO
Entity Registrant Name	FARO TECHNOLOGIES INC
Entity Central Index Key	0000917491
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		17,397,359

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 95,975	$ 109,289
Short-term investments	64,984	64,995
Accounts receivable, net	63,811	83,959
Inventories, net	55,110	43,094
Deferred income taxes, net	5,508	5,936
Prepaid expenses and other current assets	21,997	17,021
Total current assets	307,385	324,294
Property and equipment:
Machinery and equipment	50,493	45,254
Furniture and fixtures	5,921	6,156
Leasehold improvements	19,537	19,676
Property and equipment at cost	75,951	71,086
Less: accumulated depreciation and amortization	(42,215)	(41,741)
Property and equipment, net	33,736	29,345
Goodwill	26,600	19,205
Intangible assets, net	16,171	9,109
Service and demonstration inventory, net	32,666	36,886
Deferred income taxes, net	6,498	6,624
Total assets	423,056	425,463
Current liabilities:
Accounts payable	12,473	15,437
Accrued liabilities	21,230	26,127
Current portion of unearned service revenues	23,771	23,572
Customer deposits	1,517	2,046
Total current liabilities	58,991	67,182
Unearned service revenues - less current portion	13,176	13,799
Deferred income tax liability	1,942
Other long-term liabilities	2,858	628
Total liabilities	76,967	81,609
Commitments and contingencies - See Note 16
Shareholders' equity:
Common stock - par value $.001, 50,000,000 shares authorized; 18,077,594 and 17,997,665 issued; 17,397,359 and 17,317,430 outstanding, respectively	18	18
Additional paid-in capital	206,459	200,090
Retained earnings	163,444	159,516
Accumulated other comprehensive loss	(14,757)	(6,695)
Common stock in treasury, at cost - 680,235 shares	(9,075)	(9,075)
Total shareholders' equity	346,089	343,854
Total liabilities and shareholders' equity	$ 423,056	$ 425,463

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 26, 2015	Dec. 31, 2014
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	18,077,594	17,997,665
Common stock, shares outstanding	17,397,359	17,317,430
Treasury stock, shares	680,235	680,235

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
SALES
Product	$ 57,803	$ 67,581	$ 182,284	$ 194,785
Service	14,704	14,658	43,937	42,888
Total sales	72,507	82,239	226,221	237,673
COST OF SALES
Product	28,943	26,640	80,652	78,185
Service	8,693	9,558	26,541	27,847
Total cost of sales (exclusive of depreciation and amortization, shown separately below)	37,636	36,198	107,193	106,032
GROSS PROFIT	34,871	46,041	119,028	131,641
OPERATING EXPENSES:
Selling and marketing	18,944	19,059	58,112	56,207
General and administrative	8,239	8,832	27,106	26,112
Depreciation and amortization	2,790	1,805	8,022	5,520
Research and development	5,820	7,352	19,430	19,440
Total operating expenses	35,793	37,048	112,670	107,279
(LOSS) INCOME FROM OPERATIONS	(922)	8,993	6,358	24,362
OTHER (INCOME) EXPENSE
Interest expense (income), net	7	(23)	(36)	(61)
Other expense (income), net	131	(89)	1,521	(78)
(LOSS) INCOME BEFORE INCOME TAX (BENEFIT) EXPENSE	(1,060)	9,105	4,873	24,501
INCOME TAX (BENEFIT) EXPENSE	(176)	(2,118)	945	1,974
NET (LOSS) INCOME	$ (884)	$ 11,223	$ 3,928	$ 22,527
NET (LOSS) INCOME PER SHARE - BASIC	$ (0.05)	$ 0.65	$ 0.23	$ 1.31
NET (LOSS) INCOME PER SHARE - DILUTED	$ (0.05)	$ 0.64	$ 0.22	$ 1.29
Weighted average shares - Basic	17,395,824	17,258,029	17,372,562	17,233,879
Weighted average shares - Diluted	17,395,824	17,410,391	17,496,190	17,396,788

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Net (Loss) income	$ (884)	$ 11,223	$ 3,928	$ 22,527
Currency translation adjustments, net of tax	(3,475)	(7,817)	(8,062)	(7,799)
Comprehensive (loss) income	$ (4,359)	$ 3,406	$ (4,134)	$ 14,728

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
OPERATING ACTIVITIES:
Net income	$ 3,928	$ 22,527
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,022	5,520
Compensation for stock options and restricted stock units	3,791	3,669
Provision for (net recovery of) bad debts	462	(272)
Loss on disposal of assets	877
Write-down of inventories	9,560	3,588
Deferred income tax expense (benefit)	556	(5,804)
Income tax benefit from exercise of stock options	(292)	(137)
Decrease (increase) in:
Accounts receivable	17,205	(5,392)
Inventories	(21,693)	(16,553)
Prepaid expenses and other current assets	(5,740)	(3,032)
(Decrease) increase in:
Accounts payable and accrued liabilities	(8,779)	(805)
Customer deposits	(473)	(1,659)
Unearned service revenues	467	2,827
Net cash provided by operating activities	7,891	4,477
INVESTING ACTIVITIES:
Purchases of property and equipment	(8,462)	(10,306)
Payments for intangible assets	(1,751)	(1,080)
Purchase of businesses acquired, net of cash	(12,066)	(1,000)
Net cash used in investing activities	(22,279)	(12,386)
FINANCING ACTIVITIES:
Payments on capital leases	(6)	(6)
Income tax benefit from exercise of stock options	292	137
Proceeds from issuance of stock, net	2,286	2,522
Net cash provided by financing activities	2,572	2,653
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(1,498)	(2,464)
DECREASE IN CASH AND CASH EQUIVALENTS	(13,314)	(7,720)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	109,289	124,630
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 95,975	$ 116,910

Description of Business

9 Months Ended

Sep. 26, 2015

Description of Business

NOTE 1 – DESCRIPTION OF BUSINESS

FARO Technologies, Inc. and its subsidiaries (collectively “FARO,” the “Company,” “us,” “we” or “our”) designs, develops, manufactures, markets and supports software driven, three-dimensional (3-D) measurement, imaging and realization systems. We sell the majority of our products through a direct sales force across a broad number of customers in a range of manufacturing, industrial, architecture, surveying, building construction and law enforcement applications. Our FaroArm®, FARO Laser ScanArm®, FARO Gage, FARO Laser Tracker™, FARO 3D Imager AMP, and their companion CAM2® software provide for Computer-Aided Design, or CAD, based inspection and/or factory-level statistical process control and high-density surveying. Together, these products integrate the measurement, quality inspection, and reverse engineering functions with CAD software to improve productivity, enhance product quality and decrease rework and scrap in the manufacturing process. Our FARO Focus^3D and FARO Freestyle^3D laser scanners, and their companion SCENE and FARO forensic software, are utilized for a wide variety of 3-D modeling, documentation and high-density surveying applications, including in two of our key vertical markets – architecture, engineering and construction (AEC) and law enforcement.

Principles of Consolidation

9 Months Ended

Sep. 26, 2015

Principles of Consolidation

NOTE 2 – PRINCIPLES OF CONSOLIDATION

Our condensed consolidated financial statements include the accounts of FARO Technologies, Inc. and its subsidiaries, all of which are wholly owned. All intercompany transactions and balances have been eliminated. The financial statements of our foreign subsidiaries are translated into U.S. dollars using exchange rates in effect at period-end for assets and liabilities and average exchange rates during each reporting period for results of operations. Adjustments resulting from financial statement translations are reflected as a separate component of accumulated other comprehensive income. Foreign currency transaction gains and losses are included in income.

Basis of Presentation

9 Months Ended

Sep. 26, 2015

Basis of Presentation

NOTE 3 – BASIS OF PRESENTATION

The condensed consolidated financial statements and notes thereto are unaudited. These statements include all normal recurring accruals and adjustments considered necessary by management for their fair presentation in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Preparing financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. The condensed consolidated results of operations for the three months and nine months ended September 26, 2015 are not necessarily indicative of results that may be expected for the year ending December 31, 2015 or any future interim period.

The information included in this Quarterly Report on Form 10-Q, including the interim condensed consolidated financial statements and the accompanying notes, should be read in conjunction with the audited consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014. The accompanying December 31, 2014 consolidated balance sheet has been derived from those audited consolidated financial statements.

Reclassifications

9 Months Ended

Sep. 26, 2015

Reclassifications

NOTE 4 – RECLASSIFICATIONS

Certain prior year amounts have been reclassified in the accompanying condensed consolidated financial statements to conform to the current period presentation. For example, certain prior year inventory balances were reclassified in the accompanying condensed consolidated financial statements to reflect changes in management’s expectations. See Note 10, Inventory, for additional information.

Impact of Recently Issued Accounting Pronouncements

9 Months Ended

Sep. 26, 2015

Impact of Recently Issued Accounting Pronouncements

NOTE 5 – IMPACT OF RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

In September 2015, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments, which eliminates the requirement for an acquirer in a business combination to account for measurement-period adjustments retrospectively. Instead, the acquirers must recognize measurement-period adjustments during the period in which the amounts are determined. The new guidance is effective for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years, with early adoption permitted. We do not believe the implementation of this standard will have a material impact on our consolidated financial statements.

In July 2015, the FASB issued ASU 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory, which changes the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. ASU 2015-11 defines net realizable value as estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The new guidance must be applied on a prospective basis and is effective for fiscal years beginning after December 15, 2015, and interim periods within those years, with early adoption permitted. We have not determined the effect this standard will have on our consolidated financial statements.

In May 2014, the FASB issued an amendment to its accounting guidance related to revenue recognition. The amendment was the result of a joint project between the FASB and the International Accounting Standards Board (“IASB”) to clarify the principles for recognizing revenue and to develop common revenue standards for U.S. GAAP and International Financial Reporting Standards. To meet those objectives, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers: Topic 606 (“ASU 2014-09”). ASU 2014-09 is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU 2015-14, Revenue from contracts with customers (Topic 606): Deferral of the Effective Date, deferring the effective date of ASU 2014-09 by one year. With this deferral, the new standard is effective for us on January 1, 2018. The standard permits the use of either the retrospective or cumulative effective transition method. We are evaluating the impact of adopting this standard on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.

Stock-Based Compensation

9 Months Ended

Sep. 26, 2015

Stock-Based Compensation

NOTE 6 – STOCK-BASED COMPENSATION

Stock-based compensation expense reflects the fair value of stock-based awards measured at the grant date and is recognized over the requisite service period.

Annually, we grant restricted stock to our non-employee directors. These director awards are granted the day following our Annual Meeting of Shareholders during the second quarter of each fiscal year and vest the day before our Annual Meeting of Shareholders in the following year. The fair value of these awards is determined by using the current market price of our common stock on the grant date.

Annually, upon approval by our Compensation Committee, we grant stock options and restricted stock units to certain employees. We also grant stock options to certain new employees throughout the year. These awards are non-performance-based subject only to time-based vesting, and vest in three equal annual installments beginning one year after the grant date. The fair value of these stock-based awards is determined by using (a) the current market price of our common stock on the grant date in the case of restricted stock units or (b) the Black-Scholes option valuation model in the case of stock options.

In the first quarter of 2015, we granted performance-based stock options and restricted stock units to certain executives. If the applicable performance goals or strategic objectives are achieved, these awards will vest in three equal annual installments beginning one year after the grant date. The fair value of each of these stock-based awards is determined by using (a) the current market price of our common stock on the grant date in the case of restricted stock units or (b) the Black-Scholes option valuation model in the case of stock options. The related stock-based compensation expense is recognized over the requisite service period, taking into account the probability that we will satisfy the performance goals or strategic objectives. There were no performance-based stock options or restricted stock units granted in the second or third quarter of 2015.

In the first quarter of 2015, we also granted performance-based stock options and restricted stock units that include a three-year market condition. The fair value of these awards is determined by using the Monte Carlo Simulation valuation model. We expense these market condition awards over the three-year vesting period regardless of the value that the award recipients ultimately receive. There were no performance-based stock options or restricted stock units granted in the second or third quarter of 2015.

The Black-Scholes and Monte Carlo Simulation valuation models incorporate assumptions as to stock price volatility, the expected life of options or awards, a risk-free interest rate and dividend yield. The weighted average fair value of the stock options and restricted stock units that were granted during the first nine months of 2015 and valued based on the Monte Carlo Simulation valuation model was $19.97 and $44.45, respectively. The assumptions used to estimate the fair value of the performance-based stock options and restricted stock units granted during the first nine months of 2015 under the Monte Carlo Simulation model are as follows:


	Nine Months Ended
	September 26, 2015	September 27, 2014
Risk-free interest rate	0.95% - 1.48%		—
Expected dividend yield	0%		—
Expected option life	4 years		—
Expected volatility	44.5%		—
Weighted-average expected volatility	44.5%		—

For stock options granted during the nine months ended September 26, 2015 and September 27, 2014 valued using the Black-Scholes option-pricing model, we used the following assumptions:


	Nine Months Ended
	September 26, 2015	September 27, 2014
Risk-free interest rate	0.80% - 1.09%	0.95% - 1.32%
Expected dividend yield	0%	0%
Expected option life	3 years	3 - 4 years
Expected volatility	42.3% - 48.5%	42.5% - 45.4%
Weighted-average expected volatility	43.1%	42.6%

Historical information was the primary basis for the selection of the expected dividend yield, expected volatility and the expected lives of the options. The risk-free interest rate was based on the yields of U.S. zero coupon issues and U.S. Treasury issues, with a term equal to the expected life of the option being valued.

The weighted-average grant-date fair value of the stock options granted during the nine months ended September 26, 2015 and September 27, 2014 and valued using the Black-Scholes option pricing model was $16.33 and $19.48 per option, respectively.

A summary of stock option activity and weighted-average exercise prices for the nine months ended September 26, 2015 follows:


	Options			Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value as of September 26, 2015
Outstanding at January 1, 2015		898,429		$	44.40
Granted		465,005			58.57
Forfeited		(97,251	)		55.06
Exercised		(66,786	)		33.11

Outstanding at September 26, 2015		1,199,397		$	50.04		4.6	$	1,961


Options exercisable at September 26, 2015		573,736		$	42.49		3.1	$	1,961

The total intrinsic value of stock options exercised during the three months ended September 26, 2015 and September 27, 2014 was $0.1 million and $0.6 million, respectively. For the nine months ended September 26, 2015 and September 27, 2014, the total intrinsic value of stock options exercised was $1.7 million and $1.5 million, respectively. The fair value of stock options vested during the three months ended September 26, 2015 and September 27, 2014 was $0.1 million and $0.0 million, respectively. The fair value of stock options vested during the nine months ended September 26, 2015 and September 27, 2014 was $3.9 million and $3.6 million, respectively.

The following table summarizes the restricted stock and restricted stock unit activity and weighted average grant-date fair values for the nine months ended September 26, 2015:


	Shares			Weighted-Average Grant Date Fair Value
Non-vested at January 1, 2015		13,955		$	43.57
Granted		16,892			43.62
Forfeited		(1,397	)		46.16
Vested		(13,349	)		42.99

Non-vested at September 26, 2015		16,101		$	43.88

We recorded total stock-based compensation expense of $1.3 million and $1.2 million for the three months ended September 26, 2015 and September 27, 2014, respectively, and $3.8 million and $3.7 million for the nine months ended September 26, 2015 and September 27, 2014, respectively.

As of September 26, 2015, there was $8.0 million of total unrecognized stock-based compensation expense related to non-vested stock-based compensation arrangements. The expense is expected to be recognized over a weighted average period of 1.9 years.

Cash and Cash Equivalents	9 Months Ended
Cash and Cash Equivalents	Sep. 26, 2015
Cash and Cash Equivalents	NOTE 7 – CASH AND CASH EQUIVALENTS We consider cash on hand and all short-term, highly liquid investments that have maturities of three months or less at the time of purchase, to be cash and cash equivalents.

- Definition

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

+ References + Details

Short Term Investments

9 Months Ended

Sep. 26, 2015

Short Term Investments

NOTE 8 – SHORT TERM INVESTMENTS

Short-term investments at September 26, 2015 included U.S. Treasury Bills totaling $65.0 million that mature through March 10, 2016. Short-term investments at December 31, 2014 included U.S. Treasury Bills totaling $65.0 million that matured through June 11, 2015. The weighted-average interest rate on the U.S. Treasury bills is less than one percent. The investments are classified as held-to-maturity and recorded at cost. The fair value of the U.S. Treasury Bills at September 26, 2015 and December 31, 2014 approximated cost.

Accounts Receivable

9 Months Ended

Sep. 26, 2015

Accounts Receivable

NOTE 9 – ACCOUNTS RECEIVABLE

Accounts receivable consist of the following:


	As of September 26, 2015			As of December 31, 2014
Accounts receivable	$	65,334		$	85,803
Allowance for doubtful accounts		(1,523	)		(1,844	)

Total	$	63,811		$	83,959

Inventories

9 Months Ended

Sep. 26, 2015

Inventories

NOTE 10 – INVENTORIES

Inventories are stated at the lower of cost or net realizable value using the first-in first-out method. Shipping and handling costs are classified as a component of cost of sales in the consolidated statements of operations. Sales demonstration inventory is comprised of measuring, imaging and realization devices utilized by sales representatives to present our products to customers. During the third quarter of 2015, management reassessed certain inventory policies based on recent sales and customer trends and in light of new product introductions, impacting our entire product portfolio. As a result of these recent policy amendments, management now expects demonstration inventory to be held by our sales representatives for up to three years, at which time it would be refurbished and transferred to finished goods as used equipment, stated at the lower of cost or net realizable value. Management expects these refurbished units to remain in finished goods inventory and be sold within 12 months at prices that produce reduced gross margins. To reflect our revised expectation, $18.0 million in demonstration inventory was reclassified from “Inventories, net”, a current asset, to “Service and demonstration inventory, net”, a long-term asset, as of September 26, 2015 on the consolidated balance sheet. In addition, we reclassified $16.2 million in demonstration inventory from “Inventories, net” to “Service and demonstration inventory, net”, on the condensed consolidated balance sheet as of December 31, 2014 and reclassified $3.0 million from demonstration inventory to finished goods as of December 31, 2014, to conform with this current policy. Demonstration inventory remains classified as inventory, as it is available for sale and any required refurbishment prior to sale is minimal.

Service inventory is typically used to provide a temporary replacement product to a customer covered by a premium warranty when the customer’s unit requires service or repair and as training equipment. Service inventory is available for sale; however, management does not expect service inventory to be sold within 12 months and, as such, classifies this inventory as a long-term asset. Service inventory that we utilize for training or repairs which we deem as no longer available for sale is transferred to fixed assets at the lower of cost or net realizable value and depreciated over its remaining useful life, typically three years. During the nine months ended September 26, 2015, we transferred $3.0 million of service inventory to “Property and Equipment”.

Inventories consist of the following:


	As of September 26, 2015		As of December 31, 2014
Raw materials	$	28,135	$	27,266
Finished goods		26,975		15,828

Inventories, net	$	55,110	$	43,094


Service and demonstration inventory	$	32,666	$	36,886

Based upon the planned timing of new product introductions and a sudden and significant decline in demand for our products during the three months ended September 26, 2015, our on-hand inventory levels exceeded our estimated requirements, resulting in excess inventory. We use several contract manufacturers and suppliers to provide manufacturing services for our product. In the normal course of business, to reduce manufacturing lead times and ensure adequate component availability, we enter into agreements with these manufacturers and suppliers to purchase sufficient inventory based on our forecast demand. At September 26, 2015, we had purchase commitments with suppliers for inventory that we no longer expect to utilize through the product lifecycle and for warranty commitments. Consequently, we recorded a $5.9 million write-down of excess inventory and a $2.0 million loss on purchase commitments in the third quarter of 2015. The aggregate of $7.9 million is included within the consolidated statement of cash flows under the caption “Write-down of inventories” for the nine months ended September 26, 2015.

Earnings Per Share

9 Months Ended

Sep. 26, 2015

Earnings Per Share

NOTE 11 – EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income by the weighted average number of shares outstanding. Diluted earnings per share is computed by also considering the impact of potential common stock on both net income and the weighted average number of shares outstanding. Our potential common stock consists of employee and director stock options, restricted stock, restricted stock units and performance-based awards. Our potential common stock is excluded from the basic earnings per share calculation and is included in the diluted earnings per share calculation when doing so would not be anti-dilutive. In the first quarter of 2015, we granted performance-based stock options and restricted stock units. These performance-based awards are included in the computation of diluted earnings per share only to the extent that the underlying performance conditions (and any applicable market condition) (i) are satisfied as of the end of the reporting period or (ii) would be considered satisfied if the end of the reporting period were the end of the related contingency period and the result would be dilutive under the treasury stock method. For the three and nine months ended September 26, 2015 there were approximately 1,199,397 and 797,844, respectively, additional shares issuable upon exercise of anti-dilutive options and contingent vesting of performance-based awards, which were excluded from the dilutive calculations. The effect of 412,895 and 414,395 additional shares were not included in the dilutive calculations for the three and nine months ended September 27, 2014, respectively.

A reconciliation of the number of common shares used in the calculation of basic and diluted earnings per share (EPS) is presented below:


	Three Months Ended
	September 26, 2015					September 27, 2014
	Shares		Per-Share Amount			Shares		Per-Share Amount

Basic EPS		17,395,824	$	(0.05	)		17,258,029	$	0.65
Effect of dilutive securities		—		—			152,362		(0.01	)


Diluted EPS		17,395,824	$	(0.05	)		17,410,391	$	0.64


	Nine Months Ended
	September 26, 2015					September 27, 2014
	Shares		Per-Share Amount			Shares		Per-Share Amount

Basic EPS		17,372,562	$	0.23			17,233,879	$	1.31
Effect of dilutive securities		123,628		(0.01	)		162,909		(0.02	)


Diluted EPS		17,496,190	$	0.22			17,396,788	$	1.29

Accrued Liabilities

9 Months Ended

Sep. 26, 2015

Accrued Liabilities

NOTE 12 – ACCRUED LIABILITIES

Accrued liabilities consist of the following:


	As of September 26, 2015		As of December 31, 2014
Accrued compensation and benefits	$	10,903	$	17,544
Accrued warranties		2,204		2,719
Professional and legal fees		1,207		1,475
Other accrued liabilities		6,916		4,389

	$	21,230	$	26,127

Activity related to accrued warranties was as follows:


	Nine Months Ended
	September 26, 2015			September 27, 2014
Balance, beginning of period	$	2,719		$	2,364
Provision for warranty expense		2,394			2,697
Fulfillment of warranty obligations		(2,909	)		(2,604	)

Balance, end of period	$	2,204		$	2,457

Income Taxes

9 Months Ended

Sep. 26, 2015

Income Taxes

NOTE 13 – INCOME TAXES

For the three months ended September 26, 2015, we recorded an income tax benefit of $0.2 million compared with an income tax benefit of $2.1 million recorded for the three months ended September 27, 2014. Our effective tax rate was 16.6% for the three months ended September 26, 2015 compared with (23.3%) in the prior year period. Income tax expense was $0.9 million for the nine months ended September 26, 2015 compared with $2.0 million for the nine months ended September 27, 2014. Our effective tax rate was 19.4% for the nine months ended September 26, 2015 compared with 8.1% in the prior year period. The fluctuation in the quarter and year-to-date periods was primarily driven by a discrete tax benefit of $4.5 million related to the reversal of a valuation allowance recorded in the third quarter of 2014, partially offset by the pre-tax loss recognized in the third quarter of 2015 and lower 2015 year-to-date pre-tax income.

Our effective tax rate continued to be lower than the statutory tax rate in the United States, reflecting primarily our global footprint in foreign jurisdictions with lower tax rates. Our effective tax rate could be impacted positively or negatively by geographic changes in the manufacturing or sales of our products and the resulting effect on taxable income in each jurisdiction.

Fair Value of Financial Instruments	9 Months Ended
Fair Value of Financial Instruments	Sep. 26, 2015
Fair Value of Financial Instruments	NOTE 14 – FAIR VALUE OF FINANCIAL INSTRUMENTS Our financial instruments include cash and cash equivalents, short-term investments, accounts receivable, customer deposits, accounts payable and accrued liabilities. The carrying amounts of such financial instruments approximate their fair value due to the short-term nature of these instruments.

Segment Reporting

9 Months Ended

Sep. 26, 2015

Segment Reporting

NOTE 15 – SEGMENT REPORTING

We have three reportable segments based upon geographic regions: Americas, Europe/Africa and Asia-Pacific. We include costs related to Corporate in the Americas region. We do not incur research and development expenses in the Asia-Pacific region.

We develop, manufacture, market, support and sell CAD-based quality assurance products integrated with CAD-based inspection and statistical process control software, and three-dimensional documentation systems in each of these regions. These activities represent more than 99% of consolidated sales. We evaluate performance and allocate resources based upon profitable growth and assets deployed.

The following table presents information about our reportable segments:


	As of and For the Three Months Ended					As of and For the Nine Months Ended
	September 26, 2015			September 27, 2014		September 26, 2015			September 27, 2014
Americas Region
Net sales to external customers	$	33,666		$	35,112	$	103,024		$	97,623
Depreciation and amortization		1,726			988		4,865			3,003
Operating income (loss)		628			1,966		(429	)		3,340
Long-lived assets		48,672			31,228		48,672			31,228
Capital expenditures		1,377			4,651		5,412			7,778
Total assets		222,787			214,101		222,787			214,101

Europe/Africa Region
Net sales to external customers	$	22,460		$	26,046	$	71,170		$	78,813
Depreciation and amortization		756			490		2,161			1,528
Operating (loss) income		(5,065	)		864		(5,432	)		5,029
Long-lived assets		25,232			16,482		25,232			16,482
Capital expenditures		817			834		2,489			1,947
Total assets		126,338			117,824		126,338			117,824

Asia-Pacific Region
Net sales to external customers	$	16,381		$	21,081	$	52,027		$	61,237
Depreciation and amortization		308			327		996			989
Operating income		3,515			6,163		12,219			15,993
Long-lived assets		2,603			2,472		2,603			2,472
Capital expenditures		195			266		561			581
Total assets		73,931			77,802		73,931			77,802

Totals
Net sales to external customers	$	72,507		$	82,239	$	226,221		$	237,673
Depreciation and amortization		2,790			1,805		8,022			5,520
Operating (loss) income		(922	)		8,993		6,358			24,362
Long-lived assets		76,507			50,182		76,507			50,182
Capital expenditures		2,389			5,751		8,462			10,306
Total assets		423,056			409,727		423,056			409,727

The geographical sales information presented above represents sales to customers located in each respective region, whereas the long-lived assets information represents assets held in the respective regions. There were no customers that individually accounted for 10% or more of total revenue in any of the periods presented above.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Commitments and Contingencies

9 Months Ended

Sep. 26, 2015

Commitments and Contingencies

NOTE 16 – COMMITMENTS AND CONTINGENCIES

Leases — We lease buildings and equipment in the normal course of business under non-cancellable operating leases that expire in or before 2024. Total obligations under these leases are approximately $6.7 million for 2015.

Purchase Commitments — We enter into purchase commitments for products and services in the ordinary course of business. These purchases generally cover production requirements for 60 to 120 days as well as materials necessary to service customer units through the product lifecycle and for warranty commitments. As of September 26, 2015, we had $18.8 million in purchase commitments that are expected to be delivered within the next 12 months. To ensure adequate component availability in preparation for new product introductions, as of September 26, 2015, we also had $4.7 million in long-term commitments for purchases to be delivered through 2017.

Legal Proceedings — We are not involved in any legal proceedings other than routine litigation arising in the normal course of business, none of which we believe will have a material adverse effect on our business, financial condition or results of operations.

Line of Credit

9 Months Ended

Sep. 26, 2015

Line of Credit

NOTE 17 – LINE OF CREDIT

On July 11, 2006, we entered into a loan agreement providing for an available line of credit of $30.0 million, which was most recently amended on March 15, 2012. Loans under the Amended and Restated Loan Agreement, as amended, bear interest at the rate of LIBOR plus a fixed percentage between 1.50% and 2.00%. The Amended and Restated Loan Agreement required us to maintain a minimum cash balance of $25 million and tangible net worth measured at the end of each of our fiscal quarters. The term of the Amended and Restated Loan Agreement, as amended, expired on March 31, 2015. We did not extend the loan agreement.

Business Combinations

9 Months Ended

Sep. 26, 2015

Business Combinations

NOTE 18 – BUSINESS COMBINATIONS

In February 2015, we completed the acquisition of ARAS 360 Technologies Inc. (“ARAS”) for a purchase price of $7.7 million, paid with cash on hand, subject to certain additional post-closing adjustments, and up to an additional $4.0 million in contingent consideration that may be earned over a two-year period. ARAS, a privately held business headquartered in Canada, produces a full suite of accident and crime reconstruction software tools that offer advanced graphics, analytical tools, and the ability to work with large point cloud data. The acquisition is expected to complement our portfolio within the law enforcement market.

In March 2015, we completed the acquisition of kubit GmbH for a purchase price of $4.5 million, paid with cash on hand, subject to certain additional post-closing adjustments, and up to an additional $3.3 million in contingent consideration that may be earned over a three-year period. The acquisition also included substantially all of the assets of kubit GmbH’s U.S. distributor kubit USA, Inc. (collectively “kubit”). Kubit, a privately held business with operating facilities in Germany and the United States, develops software for surveying and as-built documentation. The acquisition is expected to complement our portfolio of software products, specifically in the AEC market.

The acquisition of each of ARAS and kubit constitutes a business combination as defined by the FASB Accounting Standards Codification (“ASC”) Topic 805, Business Combinations. Accordingly, the assets acquired and liabilities assumed were recorded at their fair values on the date of acquisition. The following allocation is based on the information that was available to make estimates of the fair value and may change as additional information becomes available and additional analyses are completed. While we believe such information provided a reasonable basis for estimating the fair values, we may obtain additional information and evidence during the measurement period that may result in changes to the estimated fair value amounts. The measurement period ends on the earlier of one year after the acquisition date or the date we received the information about the facts and circumstances that existed at the acquisition date. Subsequent adjustments, if necessary, will be retrospectively reflected in future filings. These refinements include: (1) changes in the estimated fair value of certain intangible assets acquired; (2) changes in the estimated fair value of the contingent consideration; and (3) changes in deferred tax assets and liabilities related to the fair value estimates.

Following is a summary of our allocation of the purchase price to the fair values of the assets acquired and liabilities assumed as of the date of each acquisition:


	ARAS		kubit

Tangible assets acquired:
Accounts receivable	$	269	$	250
Other assets		9		246

Total assets acquired		278		496


Liabilities assumed:
Accounts payable and accrued liabilities		41		315
Other liabilities		210		353

Total liabilities assumed		251		668


Intangible assets
Trade name		509		658
Non-competition agreement		540		272
Technology		2,052		945
Customer relationship		2,250		715

Total intangible assets		5,351		2,590



Net assets acquired	$	5,378	$	2,418


Deferred tax liability		1,385		669
Purchase price, net of cash acquired		7,640		4,426
Contingent consideration		1,348		987

Goodwill	$	4,995	$	3,664

The goodwill arising from the acquisitions consists largely of the expected synergies from combining operations as well as the value of the workforce. Intangible assets acquired with ARAS and kubit will be amortized over a weighted-average life of about 8 years. The intangible assets and goodwill of ARAS were assigned to the Americas reporting unit and the kubit intangible assets and goodwill were mainly assigned to the Europe/Africa reporting unit. The goodwill value is not expected to be tax deductible. We estimated the fair value of the contingent consideration using a Monte Carlo analysis, which is based on significant inputs, primarily forecasted future results of the acquired businesses, not observable in the market and thus represents a Level 3 measure as defined in ASC 820, Fair Value Measurements and Disclosures.

Acquisition and integration costs are not included as components of consideration transferred, but are recorded as expense in the period in which such costs are incurred. To date, we have incurred approximately $0.2 million in acquisition and integration costs for each of the ARAS and kubit acquisitions.

We have not furnished pro forma financial information related to our acquisitions of ARAS and kubit because such information is not material individually or in the aggregate to our overall financial results.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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+ Details

Subsequent Event

9 Months Ended

Sep. 26, 2015

Subsequent Event

NOTE 19 – SUBSEQUENT EVENT

On November 3, 2015, we announced our intention to reduce 8% of our global workforce in an effort to streamline operations and reduce cost. As of the date of this filing, we have not yet determined the global impact to our consolidated financial statements and fourth quarter 2015 results.

On November 3, 2015, we announced that Jay W. Freeland plans to step down as President and Chief Executive Officer (“CEO”) and as a director to pursue other interests. Mr. Freeland has agreed to remain in his current role until a successor is appointed. We have begun an external search for a new President and CEO.

Stock-Based Compensation (Tables)

9 Months Ended

Sep. 26, 2015

Assumptions Used to Estimate The Fair Value of The Performance-based Stock Options and Restricted Stock Units

The assumptions used to estimate the fair value of the performance-based stock options and restricted stock units granted during the first nine months of 2015 under the Monte Carlo Simulation model are as follows:


	Nine Months Ended
	September 26, 2015	September 27, 2014
Risk-free interest rate	0.95% - 1.48%		—
Expected dividend yield	0%		—
Expected option life	4 years		—
Expected volatility	44.5%		—
Weighted-average expected volatility	44.5%		—

Fair Value of Options Granted

For stock options granted during the nine months ended September 26, 2015 and September 27, 2014 valued using the Black-Scholes option-pricing model, we used the following assumptions:


	Nine Months Ended
	September 26, 2015	September 27, 2014
Risk-free interest rate	0.80% - 1.09%	0.95% - 1.32%
Expected dividend yield	0%	0%
Expected option life	3 years	3 - 4 years
Expected volatility	42.3% - 48.5%	42.5% - 45.4%
Weighted-average expected volatility	43.1%	42.6%

Summary of Stock Option Activity

A summary of stock option activity and weighted-average exercise prices for the nine months ended September 26, 2015 follows:


	Options			Weighted- Average Exercise Price		Weighted-Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value as of September 26, 2015
Outstanding at January 1, 2015		898,429		$	44.40
Granted		465,005			58.57
Forfeited		(97,251	)		55.06
Exercised		(66,786	)		33.11

Outstanding at September 26, 2015		1,199,397		$	50.04		4.6	$	1,961


Options exercisable at September 26, 2015		573,736		$	42.49		3.1	$	1,961

Summary of Restricted Stock Activity

The following table summarizes the restricted stock and restricted stock unit activity and weighted average grant-date fair values for the nine months ended September 26, 2015:


	Shares			Weighted-Average Grant Date Fair Value
Non-vested at January 1, 2015		13,955		$	43.57
Granted		16,892			43.62
Forfeited		(1,397	)		46.16
Vested		(13,349	)		42.99

Non-vested at September 26, 2015		16,101		$	43.88

Accounts Receivable (Tables)

9 Months Ended

Sep. 26, 2015

Accounts Receivable

Accounts receivable consist of the following:


	As of September 26, 2015			As of December 31, 2014
Accounts receivable	$	65,334		$	85,803
Allowance for doubtful accounts		(1,523	)		(1,844	)

Total	$	63,811		$	83,959

Inventories (Tables)

9 Months Ended

Sep. 26, 2015

Inventories

Inventories consist of the following:


	As of September 26, 2015		As of December 31, 2014
Raw materials	$	28,135	$	27,266
Finished goods		26,975		15,828

Inventories, net	$	55,110	$	43,094


Service and demonstration inventory	$	32,666	$	36,886

Earnings Per Share (Tables)

9 Months Ended

Sep. 26, 2015

Reconciliation of Number of Common Shares Used in Calculation of Basic and Diluted Earnings Per Share (EPS)

A reconciliation of the number of common shares used in the calculation of basic and diluted earnings per share (EPS) is presented below:


	Three Months Ended
	September 26, 2015					September 27, 2014
	Shares		Per-Share Amount			Shares		Per-Share Amount

Basic EPS		17,395,824	$	(0.05	)		17,258,029	$	0.65
Effect of dilutive securities		—		—			152,362		(0.01	)


Diluted EPS		17,395,824	$	(0.05	)		17,410,391	$	0.64


	Nine Months Ended
	September 26, 2015					September 27, 2014
	Shares		Per-Share Amount			Shares		Per-Share Amount

Basic EPS		17,372,562	$	0.23			17,233,879	$	1.31
Effect of dilutive securities		123,628		(0.01	)		162,909		(0.02	)


Diluted EPS		17,496,190	$	0.22			17,396,788	$	1.29

Accrued Liabilities (Tables)

9 Months Ended

Sep. 26, 2015

Accrued Liabilities

Accrued liabilities consist of the following:


	As of September 26, 2015		As of December 31, 2014
Accrued compensation and benefits	$	10,903	$	17,544
Accrued warranties		2,204		2,719
Professional and legal fees		1,207		1,475
Other accrued liabilities		6,916		4,389

	$	21,230	$	26,127

Activity Related to Accrued Warranties

Activity related to accrued warranties was as follows:


	Nine Months Ended
	September 26, 2015			September 27, 2014
Balance, beginning of period	$	2,719		$	2,364
Provision for warranty expense		2,394			2,697
Fulfillment of warranty obligations		(2,909	)		(2,604	)

Balance, end of period	$	2,204		$	2,457

Segment Reporting (Tables)

9 Months Ended

Sep. 26, 2015

Segment Reporting Information

The following table presents information about our reportable segments:


	As of and For the Three Months Ended					As of and For the Nine Months Ended
	September 26, 2015			September 27, 2014		September 26, 2015			September 27, 2014
Americas Region
Net sales to external customers	$	33,666		$	35,112	$	103,024		$	97,623
Depreciation and amortization		1,726			988		4,865			3,003
Operating income (loss)		628			1,966		(429	)		3,340
Long-lived assets		48,672			31,228		48,672			31,228
Capital expenditures		1,377			4,651		5,412			7,778
Total assets		222,787			214,101		222,787			214,101

Europe/Africa Region
Net sales to external customers	$	22,460		$	26,046	$	71,170		$	78,813
Depreciation and amortization		756			490		2,161			1,528
Operating (loss) income		(5,065	)		864		(5,432	)		5,029
Long-lived assets		25,232			16,482		25,232			16,482
Capital expenditures		817			834		2,489			1,947
Total assets		126,338			117,824		126,338			117,824

Asia-Pacific Region
Net sales to external customers	$	16,381		$	21,081	$	52,027		$	61,237
Depreciation and amortization		308			327		996			989
Operating income		3,515			6,163		12,219			15,993
Long-lived assets		2,603			2,472		2,603			2,472
Capital expenditures		195			266		561			581
Total assets		73,931			77,802		73,931			77,802

Totals
Net sales to external customers	$	72,507		$	82,239	$	226,221		$	237,673
Depreciation and amortization		2,790			1,805		8,022			5,520
Operating (loss) income		(922	)		8,993		6,358			24,362
Long-lived assets		76,507			50,182		76,507			50,182
Capital expenditures		2,389			5,751		8,462			10,306
Total assets		423,056			409,727		423,056			409,727

Business Combinations (Tables)

9 Months Ended

Sep. 26, 2015

Preliminary Allocation of Purchase Price to Fair Values of Assets Acquired and Liabilities Assumed

Following is a summary of our allocation of the purchase price to the fair values of the assets acquired and liabilities assumed as of the date of each acquisition:


	ARAS		kubit

Tangible assets acquired:
Accounts receivable	$	269	$	250
Other assets		9		246

Total assets acquired		278		496


Liabilities assumed:
Accounts payable and accrued liabilities		41		315
Other liabilities		210		353

Total liabilities assumed		251		668


Intangible assets
Trade name		509		658
Non-competition agreement		540		272
Technology		2,052		945
Customer relationship		2,250		715

Total intangible assets		5,351		2,590



Net assets acquired	$	5,378	$	2,418


Deferred tax liability		1,385		669
Purchase price, net of cash acquired		7,640		4,426
Contingent consideration		1,348		987

Goodwill	$	4,995	$	3,664

Stock-Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 26, 2015 USD ($) shares	Jun. 27, 2015 shares	Sep. 27, 2014 USD ($)	Sep. 26, 2015 USD ($) Installment $ / shares shares	Sep. 27, 2014 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based awards, number of equal annual installments \| Installment				3
Number of shares granted \| shares				16,892
Vesting period, years				3 years
Weighted-average grant-date fair value of restricted stock unit granted \| $ / shares				$ 43.62
Total intrinsic value of stock options exercised \| $	$ 100		$ 600	$ 1,700	$ 1,500
Fair value of stock options vested \| $	100		0	3,900	3,600
Stock-based compensation expense \| $	1,300		$ 1,200	3,791	$ 3,669
Unrecognized stock-based compensation expense \| $	$ 8,000			$ 8,000
Weighted average, expected recognition period				1 year 10 months 24 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted \| shares	0	0
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted \| shares	0	0
Black Scholes Option Pricing Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value of stock options granted \| $ / shares				$ 16.33	$ 19.48
Monte Carlo Simulation Valuation Model
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value of stock options granted \| $ / shares				19.97
Weighted-average grant-date fair value of restricted stock unit granted \| $ / shares				$ 44.45

Assumptions Used to Estimate The Fair Value of The Performance-based Stock Options and Restricted Stock Units (Detail) - Performance-Based Stock Options and Restricted Stock Units	9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]
Risk-free interest rate	0.00%	0.00%
Risk-free interest rate, minimum	0.95%
Risk-free interest rate, maximum	1.48%
Expected dividend yield	0.00%
Expected option life	4 years	0 years
Expected volatility	44.50%
Weighted-average expected volatility	44.50%

Fair Value of Option Granted (Detail) - Equity Option	9 Months Ended
Fair Value of Option Granted (Detail) - Equity Option	Sep. 26, 2015	Sep. 27, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]
Risk-free interest rate, minimum	0.80%	0.95%
Risk-free interest rate, maximum	1.09%	1.32%
Expected dividend yield	0.00%	0.00%
Expected option life	3 years
Expected volatility, minimum	42.30%	42.50%
Expected volatility, maximum	48.50%	45.40%
Weighted-average expected volatility	43.10%	42.60%
Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Expected option life		3 years
Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Expected option life		4 years

Summary of Stock Option Activity (Detail) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 26, 2015 USD ($) $ / shares shares
Options Outstanding
Outstanding, beginning balance \| shares	898,429
Granted \| shares	465,005
Forfeited \| shares	(97,251)
Exercised \| shares	(66,786)
Outstanding, ending balance \| shares	1,199,397
Options exercisable at end of period \| shares	573,736
Weighted-Average Exercise Price
Outstanding, beginning balance \| $ / shares	$ 44.40
Granted \| $ / shares	58.57
Forfeited \| $ / shares	55.06
Exercised \| $ / shares	33.11
Outstanding, ending balance \| $ / shares	50.04
Options exercisable at end of period \| $ / shares	$ 42.49
Weighted-Average Remaining Contractual Term
Outstanding at end of period	4 years 7 months 6 days
Options exercisable at end of period	3 years 1 month 6 days
Aggregate Intrinsic Value
Outstanding at end of period \| $	$ 1,961
Options exercisable at end of period \| $	$ 1,961

Summary of Restricted Stock Activity (Detail)	9 Months Ended
Summary of Restricted Stock Activity (Detail)	Sep. 26, 2015 $ / shares shares
Shares
Non-vested at beginning of period \| shares	13,955
Granted \| shares	16,892
Forfeited \| shares	(1,397)
Vested \| shares	(13,349)
Non-vested at end of period \| shares	16,101
Weighted-Average Grant Date Fair Value
Non-vested at beginning of period \| $ / shares	$ 43.57
Granted \| $ / shares	43.62
Forfeited \| $ / shares	46.16
Vested \| $ / shares	42.99
Non-vested at end of period \| $ / shares	$ 43.88

Cash and Cash Equivalents - Additional Information (Detail)	9 Months Ended
	Sep. 26, 2015
Maximum
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents maturity period	3 months

Short Term Investments - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 31, 2014
Securities Purchased Under Agreements to Resell and Other Short Term Investment Securities [Line Items]
Short-term investments	$ 64,984	$ 64,995
Weighted average interest rate on U.S. Treasury bills, maximum	1.00%	1.00%
US Treasury Bill Securities
Securities Purchased Under Agreements to Resell and Other Short Term Investment Securities [Line Items]
Short-term investments	$ 65,000	$ 65,000

Accounts Receivable (Detail) - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 65,334	$ 85,803
Allowance for doubtful accounts	(1,523)	(1,844)
Total	$ 63,811	$ 83,959

Inventories - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 26, 2015	Sep. 26, 2015	Sep. 27, 2014	Dec. 31, 2014
Inventory [Line Items]
Demonstration inventory shelf life		3 years
Refurbished demonstration inventory selling period		12 months
Inventories, net	$ 55,110	$ 55,110		$ 43,094
Fixed assets, useful life		3 years
Write-down of inventories		$ 9,560	$ 3,588
Finished goods
Inventory [Line Items]
Demonstration inventory				3,000
Excess Inventory
Inventory [Line Items]
Write-down of inventories	5,900
Purchase Commitment Inventory
Inventory [Line Items]
Write-down of inventories	2,000
Excess Inventory and Purchase Commitment Inventory
Inventory [Line Items]
Write-down of inventories		7,900
Service and demonstration inventory, net \| Demonstration inventory
Inventory [Line Items]
Inventories, net	18,000	18,000		$ 16,200
Property and equipment
Inventory [Line Items]
Service inventory	$ 3,000	$ 3,000

Inventories (Detail) - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 31, 2014
Inventory [Line Items]
Raw materials	$ 28,135	$ 27,266
Finished goods	26,975	15,828
Inventories, net	55,110	43,094
Service and demonstration inventory	$ 32,666	$ 36,886

Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from calculation of diluted EPS, as they were antidilutive	1,199,397	412,895	797,844	414,395

Reconciliation of Number of Common Shares Used in Calculation of Basic and Diluted Earnings Per Share (EPS) (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Earnings Per Share [Line Items]
Weighted average shares - Basic	17,395,824	17,258,029	17,372,562	17,233,879
Effect of dilutive securities, shares		152,362	123,628	162,909
Diluted EPS, shares	17,395,824	17,410,391	17,496,190	17,396,788
Basic EPS	$ (0.05)	$ 0.65	$ 0.23	$ 1.31
Effect of dilutive securities		(0.01)	(0.01)	(0.02)
Diluted EPS	$ (0.05)	$ 0.64	$ 0.22	$ 1.29

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References + Details

Accrued Liabilities (Detail) - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 31, 2014	Sep. 27, 2014	Dec. 31, 2013
Schedule of Accrued Liabilities [Line Items]
Accrued compensation and benefits	$ 10,903	$ 17,544
Accrued warranties	2,204	2,719	$ 2,457	$ 2,364
Professional and legal fees	1,207	1,475
Other accrued liabilities	6,916	4,389
Accrued liabilities	$ 21,230	$ 26,127

Activity Related to Accrued Warranties (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Product Warranty Liability [Line Items]
Beginning Balance	$ 2,719	$ 2,364
Provision for warranty expense	2,394	2,697
Fulfillment of warranty obligations	(2,909)	(2,604)
Ending Balance	$ 2,204	$ 2,457

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Income Taxes [Line Items]
Income tax expense (benefit)	$ (176)	$ (2,118)	$ 945	$ 1,974
Effective tax rate	16.60%	(23.30%)	19.40%	8.10%
Discrete tax benefit due to the reversal of a valuation allowance		$ 4,500

Segment Reporting - Additional Information (Detail)	9 Months Ended
Segment Reporting - Additional Information (Detail)	Sep. 26, 2015 Segment Customer
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment	3
Customers that individually accounted for 10% or more of total revenue \| Customer	0
Minimum
Segment Reporting Information [Line Items]
Percentage of product sales to consolidated sales	99.00%

Segment Reporting Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales to external customers	$ 72,507	$ 82,239	$ 226,221	$ 237,673
Depreciation and amortization	2,790	1,805	8,022	5,520
Operating (loss) income	(922)	8,993	6,358	24,362
Long-lived assets	76,507	50,182	76,507	50,182
Capital expenditures	2,389	5,751	8,462	10,306
Total assets	423,056	409,727	423,056	409,727	$ 425,463
Americas Region
Segment Reporting Information [Line Items]
Net sales to external customers	33,666	35,112	103,024	97,623
Depreciation and amortization	1,726	988	4,865	3,003
Operating (loss) income	628	1,966	(429)	3,340
Long-lived assets	48,672	31,228	48,672	31,228
Capital expenditures	1,377	4,651	5,412	7,778
Total assets	222,787	214,101	222,787	214,101
Europe/Africa Region
Segment Reporting Information [Line Items]
Net sales to external customers	22,460	26,046	71,170	78,813
Depreciation and amortization	756	490	2,161	1,528
Operating (loss) income	(5,065)	864	(5,432)	5,029
Long-lived assets	25,232	16,482	25,232	16,482
Capital expenditures	817	834	2,489	1,947
Total assets	126,338	117,824	126,338	117,824
Asia-Pacific Region
Segment Reporting Information [Line Items]
Net sales to external customers	16,381	21,081	52,027	61,237
Depreciation and amortization	308	327	996	989
Operating (loss) income	3,515	6,163	12,219	15,993
Long-lived assets	2,603	2,472	2,603	2,472
Capital expenditures	195	266	561	581
Total assets	$ 73,931	$ 77,802	$ 73,931	$ 77,802

Commitments and Contingencies - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 26, 2015 USD ($)
Commitments and Contingencies [Line Items]
Lease future expiration date, year	2024
Total remaining operating lease obligations	$ 6.7
Purchase commitment, due in next twelve months	18.8
Long-term purchase commitments	$ 4.7
Long-term purchase commitments, maturity year	2017
Minimum
Commitments and Contingencies [Line Items]
Length of purchase commitments, in days	60 days
Maximum
Commitments and Contingencies [Line Items]
Length of purchase commitments, in days	120 days

Line of Credit - Additional Information (Detail)	9 Months Ended
Line of Credit - Additional Information (Detail)	Sep. 26, 2015 USD ($)
Line of Credit Facility [Line Items]
Available line of credit	$ 30,000,000
Line of credit, variable rate basis	LIBOR plus a fixed percentage between 1.50% and 2.00%
Minimum cash balance required to maintain under the credit agreement	$ 25,000,000
Line of credit, expiration date	Mar. 31, 2015
LIBOR \| Minimum
Line of Credit Facility [Line Items]
Line of credit basis spread on variable rate	1.50%
LIBOR \| Maximum
Line of Credit Facility [Line Items]
Line of credit basis spread on variable rate	2.00%

Business Combinations - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		9 Months Ended
	Mar. 28, 2015	Feb. 28, 2015	Sep. 26, 2015	Sep. 27, 2014
Business Acquisition [Line Items]
Business acquisition, cash			$ 12,066	$ 1,000
Maximum measurement period after the acquisition date			1 year
Intangible assets acquired, weighted-average amortization period			8 years
Business acquisition, acquisition and integration costs			$ 200
ARAS
Business Acquisition [Line Items]
Business acquisition, cash		$ 7,700
Business acquisition, contingent consideration		$ 4,000
Earn out period for contingent consideration		2 years
Kubit GmbH
Business Acquisition [Line Items]
Business acquisition, cash	$ 4,500
Business acquisition, contingent consideration	$ 3,300
Earn out period for contingent consideration	3 years

Preliminary Allocation of Purchase Price to Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2015	Dec. 31, 2014
Intangible assets
Goodwill	$ 26,600	$ 19,205
ARAS
Tangible assets acquired:
Accounts receivable	269
Other assets	9
Total assets acquired	278
Liabilities assumed:
Accounts payable and accrued liabilities	41
Other liabilities	210
Total liabilities assumed	251
Intangible assets
Intangible assets	5,351
Net assets acquired	5,378
Deferred tax liability	1,385
Purchase price, net of cash acquired	7,640
Contingent consideration	1,348
Goodwill	4,995
ARAS \| Trade Names
Intangible assets
Intangible assets	509
ARAS \| Noncompete Agreements
Intangible assets
Intangible assets	540
ARAS \| Technology-Based Intangible Assets
Intangible assets
Intangible assets	2,052
ARAS \| Customer Relationships
Intangible assets
Intangible assets	2,250
Kubit GmbH
Tangible assets acquired:
Accounts receivable	250
Other assets	246
Total assets acquired	496
Liabilities assumed:
Accounts payable and accrued liabilities	315
Other liabilities	353
Total liabilities assumed	668
Intangible assets
Intangible assets	2,590
Net assets acquired	2,418
Deferred tax liability	669
Purchase price, net of cash acquired	4,426
Contingent consideration	987
Goodwill	3,664
Kubit GmbH \| Trade Names
Intangible assets
Intangible assets	658
Kubit GmbH \| Noncompete Agreements
Intangible assets
Intangible assets	272
Kubit GmbH \| Technology-Based Intangible Assets
Intangible assets
Intangible assets	945
Kubit GmbH \| Customer Relationships
Intangible assets
Intangible assets	$ 715

Subsequent Event - Additional Information (Detail)	Nov. 03, 2015
Subsequent Event
Subsequent Event [Line Items]
Reduction in global work force	8.00%