Novanta (NOVT) 10-Q 6 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Apr. 01, 2016	Apr. 29, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 1, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Trading Symbol	GSIG
Entity Registrant Name	GSI GROUP INC
Entity Central Index Key	1,076,930
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,520,156

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 67,892	$ 59,959
Accounts receivable, net of allowance of $529 and $500, respectively	58,683	57,188
Inventories	61,764	59,566
Income taxes receivable	2,454	2,510
Prepaid expenses and other current assets	4,633	5,989
Total current assets	195,426	185,212
Property, plant and equipment, net	36,195	40,550
Deferred tax assets	7,966	7,885
Other assets	10,563	12,673
Intangible assets, net	62,968	66,269
Goodwill	103,413	103,456
Total assets	416,531	416,045
Current Liabilities
Current portion of long-term debt	7,395	7,385
Accounts payable	26,893	24,401
Income taxes payable	1,770	3,985
Accrued expenses and other current liabilities	24,274	21,182
Total current liabilities	60,332	56,953
Long-term debt	86,763	88,426
Deferred tax liabilities	556	449
Income taxes payable	5,919	6,071
Other liabilities	15,745	19,445
Total liabilities	$ 169,315	$ 171,344
Commitments and Contingencies (Note 13)
Stockholders’ Equity:
Common shares, no par value; Authorized shares: unlimited; Issued and outstanding: 34,516 and 34,345, respectively	$ 423,856	$ 423,856
Additional paid-in capital	29,320	29,225
Accumulated deficit	(187,644)	(189,550)
Accumulated other comprehensive loss	(18,316)	(18,830)
Total stockholders’ equity	247,216	244,701
Total liabilities and stockholders’ equity	$ 416,531	$ 416,045

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Accounts receivable, allowance	$ 529	$ 500
Common shares, no par value	$ 0	$ 0
Common shares, Issued	34,516	34,345
Common shares, outstanding	34,516	34,345

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Income Statement [Abstract]
Revenue	$ 90,316	$ 94,614
Cost of revenue	53,424	54,608
Gross profit	36,892	40,006
Operating expenses:
Research and development and engineering	8,052	8,215
Selling, general and administrative	21,187	22,068
Amortization of purchased intangible assets	2,108	1,889
Restructuring, acquisition and divestiture related costs	2,958	2,437
Total operating expenses	34,305	34,609
Operating income from continuing operations	2,587	5,397
Interest income (expense), net	(1,185)	(1,397)
Foreign exchange transaction gains (losses), net	83	517
Other income (expense), net	743	729
Income from continuing operations before income taxes	2,228	5,246
Income tax provision	322	1,800
Income from continuing operations	1,906	3,446
Consolidated net income	$ 1,906	$ 3,446
Earnings per common share from continuing operations:
Basic	$ 0.05	$ 0.10
Diluted	0.05	0.10
Earnings per common share:
Basic	0.05	0.10
Diluted	$ 0.05	$ 0.10
Weighted average common shares outstanding—basic	34,657	34,506
Weighted average common shares outstanding—diluted	34,853	34,999

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		3 Months Ended
		Apr. 01, 2016	Apr. 03, 2015
Statement Of Income And Comprehensive Income [Abstract]
Consolidated net income		$ 1,906	$ 3,446
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	[1]	65	(4,506)
Pension liability adjustments, net of tax	[2]	449	729
Total other comprehensive income (loss)		514	(3,777)
Total consolidated comprehensive income (loss)		$ 2,420	$ (331)
[1]	The tax effect on this component of comprehensive income was nominal for the three months ended April 1, 2016 and $0.5 million for the three months ended April 3, 2015.
[2]	The tax effect on this component of comprehensive income was not material for all periods presented. See Note 4 for the total amount of pension liability adjustments reclassified out of accumulated other comprehensive income (loss).

CONSOLIDATED STATEMENTS OF COM6

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) $ in Millions	3 Months Ended
	Apr. 03, 2015USD ($)
Statement Of Income And Comprehensive Income [Abstract]
Foreign currency translation adjustments - Tax effect on component of comprehensive income	$ 0.5

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Cash flows from operating activities:
Consolidated net income	$ 1,906	$ 3,446
Income from continuing operations	1,906	3,446
Adjustments to reconcile income from continuing operations to net cash provided by operating activities of continuing operations:
Depreciation and amortization	5,229	4,762
Provision for inventory excess and obsolescence	1,493	516
Share-based compensation	1,342	1,597
Deferred income taxes	108	(103)
Earnings from equity-method investment	(740)	(727)
Dividend from equity-method investment	2,341
Non-cash restructuring and acquisition related charges	602	288
Other	195	415
Changes in assets and liabilities which (used)/provided cash, excluding effects from businesses purchased or classified as discontinued operations:
Accounts receivable	(1,139)	(5,096)
Inventories	(3,519)	(3,975)
Income taxes receivable, prepaid expenses and other current assets	(514)	649
Accounts payable, income taxes payable, accrued expenses and other current liabilities	1,302	4,660
Other non-current assets and liabilities	(308)	(390)
Cash provided by operating activities of continuing operations	8,298	6,042
Cash provided by operating activities	8,298	6,042
Cash flows from investing activities:
Purchases of property, plant and equipment	(2,341)	(946)
Acquisition of businesses, net of cash acquired and working capital adjustments	422	(13,852)
Proceeds from the sale of property, plant and equipment	3,589	23
Cash provided by (used in) investing activities of continuing operations	1,670	(14,775)
Cash provided by investing activities of discontinued operations	1,498
Cash provided by (used in) investing activities	3,168	(14,775)
Cash flows from financing activities:
Borrowings under revolving credit facility		13,000
Repayments of long-term debt and revolving credit facility	(1,875)	(4,875)
Payments of withholding taxes from stock-based awards	(1,320)	(1,352)
Capital lease payments	(342)	(201)
Other financing activities	88	159
Cash provided by (used in) financing activities of continuing operations	(3,449)	6,731
Cash provided by financing activities of discontinued operations	0	0
Cash provided by (used in) financing activities	(3,449)	6,731
Effect of exchange rates on cash and cash equivalents	(84)	(1,602)
Increase (decrease) in cash and cash equivalents	7,933	(3,604)
Cash and cash equivalents, beginning of period	59,959	51,146
Cash and cash equivalents, end of period	67,892	47,542
Supplemental disclosure of cash flow information:
Cash paid for interest	810	975
Cash paid for income taxes	2,470	1,559
Income tax refunds received	$ 1	16
Supplemental disclosure of non-cash financing activity:
Assets acquired under capital lease obligations		$ 17

Basis of Presentation

Basis of Presentation	3 Months Ended
	Apr. 01, 2016
Accounting Policies [Abstract]
Basis of Presentation	1. Basis of Presentation GSI Group Inc. and its subsidiaries (collectively referred to as the “Company”, “we”, “us”, “our”) design, develop, manufacture and sell precision photonic and motion control components and subsystems to Original Equipment Manufacturers (“OEMs”) in the medical and advanced industrial markets. Our highly engineered enabling technologies include CO2 laser sources, laser scanning and beam delivery products, optical data collection and machine vision technologies, medical visualization and informatics solutions, and precision motion control products. We specialize in collaborating with OEM customers to adapt our component and subsystem technologies to deliver highly differentiated performance in their applications. The accompanying unaudited interim consolidated financial statements have been prepared in U.S. dollars and pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”), the instructions to Form 10-Q and the provisions of Regulation S-X pertaining to interim financial statements. Accordingly, certain information and footnote disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The interim consolidated financial statements and notes included in this report should be read in conjunction with the financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. In the opinion of management, these interim consolidated financial statements include all adjustments and accruals of a normal and recurring nature necessary to fairly state the results of the interim periods presented. The results for interim periods are not necessarily indicative of results to be expected for the full year or for any future periods. The Company has a 41% ownership interest in Laser Quantum Ltd. (“Laser Quantum”), a privately held company located in the United Kingdom. The Company records the results of this entity under the equity method as it does not have a controlling interest in the entity. The Company’s unaudited interim financial statements are prepared for each quarterly period ending on the Friday closest to the end of the calendar quarter, with the exception of the fourth quarter which always ends on December 31. Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. The Company evaluates its estimates based on historical experience, current conditions and various other assumptions that it believes are reasonable under the circumstances. Estimates and assumptions are reviewed on an on-going basis and the effects of revisions are reflected in the period in which they are deemed to be necessary. Actual results could differ significantly from those estimates. Recent Accounting Pronouncements Share-Based Compensation In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” which amends the accounting for employee share-based payment transactions to require recognition of the tax effects resulting from the settlement of stock-based awards as income tax expense or benefit in the income statement in the reporting period in which they occur. In addition, the ASU requires that all tax-related cash flows resulting from share-based payments, including the excess tax benefits related to the settlement of stock-based awards, be classified as cash flows from operating activities in the statement of cash flows. This ASU also requires that cash paid through directly withholding shares for tax-withholding purposes be classified as a financing activity in the statement of cash flows. In addition, this ASU allows companies to make an accounting policy election to either estimate the number of awards that are expected to vest, consistent with current U.S. GAAP, or account for forfeitures when they occur. The new standard is effective for annual reporting periods beginning after December 15, 2016, with early adoption permitted. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Leases In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” which provides comprehensive lease accounting guidance. The standard requires entities to recognize lease assets and liabilities on the balance sheet and to disclose key information about leasing arrangements. ASU 2016-02 will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40),” which requires management to assess a company’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. ASU 2014-15 will be effective for annual reporting periods ending after December 15, 2016. Early application is permitted. The Company does not expect the adoption of ASU 2014-15 to have an impact on the Company’s consolidated financial statements. Revenue from Contracts with Customers In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, “Revenue Recognition,” and requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for annual and interim reporting periods beginning after December 15, 2016. Early adoption is not permitted. Upon adoption, an entity may apply the new guidance either retrospectively to each prior reporting period presented or retrospectively only to customer contracts not yet completed as of the date of adoption with the cumulative effect of initially applying the standard recognized in beginning retained earnings at the date of the initial application. In August 2015, the FASB issued ASU 2015-14, “Revenue from Contracts with Customers – Deferral of the Effective Date,” which defers the effective date of ASU 2014-09 by one year, with the option of early adoption as of the original effective date. The amendment in ASU 2015-14 will result in ASU 2014-09 being effective for annual and interim reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of the new standard on our consolidated financial statements.

Business Combinations

Business Combinations	3 Months Ended
	Apr. 01, 2016
Business Combinations [Abstract]
Business Combinations	2. Business Combinations On November 9, 2015, the Company acquired certain assets and liabilities of Lincoln Laser Company (“Lincoln Laser”), a Phoenix, Arizona-based provider of ultrafast precision polygon scanners and other optical scanning solutions for the medical, food processing, and advanced industrial markets, for a total purchase price of $12.1 million, net of working capital adjustments. During the first quarter of 2016, the Company finalized the working capital adjustments with the sellers of Lincoln Laser and received a payment of $0.4 million.

Discontinued Operations and Div

Discontinued Operations and Divestitures	3 Months Ended
	Apr. 01, 2016
Discontinued Operations And Disposal Groups [Abstract]
Discontinued Operations and Divestitures	3. Discontinued Operations and Divestitures In April 2015, the Company completed the sale of certain assets and liabilities of its JK Lasers business, previously included in the Laser Products segment, for approximately $29.6 million in cash, net of final working capital adjustments and transaction costs. The Company recognized a pre-tax gain on sale of $19.6 million in the consolidated statement of operations. The JK Lasers business divestiture did not qualify for discontinued operations accounting treatment. In July 2014, the Company completed the sale of certain assets and liabilities of its Scientific Lasers business for approximately $6.5 million in cash, net of working capital adjustments. In accordance with the purchase and sale agreement, $1.5 million of the sales proceeds was held in escrow until January 2016. The Company reported the $1.5 million escrow in other current assets on the balance sheet as of December 31, 2015. In January 2016, the $1.5 million escrow was released to the Company in full and is reported as cash flow from investing activities of discontinued operations.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Apr. 01, 2016
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	4. Accumulated Other Comprehensive Income (Loss) Changes in accumulated other comprehensive income (loss) was as follows (in thousands): Total accumulated other Foreign currency comprehensive translation Pension income (loss) adjustments liability Balance at December 31, 2015 $ (18,830 ) $ (9,698 ) $ (9,132 ) Other comprehensive income (loss) 321 65 256 Amounts reclassified from other comprehensive income (loss) (1) 193 — 193 Balance at April 1, 2016 $ (18,316 ) $ (9,633 ) $ (8,683 ) (1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

Earnings per Share

Earnings per Share	3 Months Ended
	Apr. 01, 2016
Earnings Per Share [Abstract]
Earnings per Share	5. Earnings per Share Basic earnings per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period. For diluted earnings per common share, the denominator also includes the dilutive effect of outstanding restricted stock units and stock options determined using the treasury stock method. Dilutive effects of contingently issuable shares are included in the weighted average dilutive share calculation when the contingencies have been resolved. For periods in which net losses are generated, the dilutive potential common shares are excluded from the calculation of diluted earnings per share as the effect would be anti-dilutive. The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share amounts): Three April 1, April 3, 2016 2015 Numerators: Income from continuing operations $ 1,906 $ 3,446 Loss from discontinued operations — — Consolidated net income $ 1,906 $ 3,446 Denominators: Weighted average common shares outstanding— basic 34,657 34,506 Dilutive potential common shares 196 493 Weighted average common shares outstanding— diluted 34,853 34,999 Antidilutive common shares excluded from above — — Basic Earnings per Common Share: From continuing operations $ 0.05 $ 0.10 From discontinued operations $ — $ — Basic earnings per share $ 0.05 $ 0.10 Diluted Earnings per Common Share: From continuing operations $ 0.05 $ 0.10 From discontinued operations $ — $ — Diluted earnings per share $ 0.05 $ 0.10 Common Stock Repurchases In October 2013, the Company’s Board of Directors authorized a share repurchase plan under which the Company may repurchase outstanding shares of the Company’s common stock up to an aggregate amount of $10.0 million. The shares may be repurchased from time to time, at the Company’s discretion, based on ongoing assessment of the capital needs of the business, the market price of the Company’s common stock, and general market conditions. Shares may also be repurchased through an accelerated stock purchase agreement, on the open market or in privately negotiated transactions in accordance with applicable federal securities laws. Repurchases may be made under certain SEC regulations, which would permit common stock to be purchased when the Company would otherwise be prohibited from doing so under insider trading laws. The share repurchase plan does not obligate the Company to acquire any particular amount of common stock. No time limit was set for the completion of the share repurchase program, and the program may be suspended or discontinued at any time. As of December 31, 2015, the Company had repurchased an aggregate of 172 thousand shares for an aggregate purchase price of $2.2 million at an average price of $12.48 per share. There have been no share repurchases to date in 2016.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Apr. 01, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	6. Fair Value Measurements ASC 820, “Fair Value Measurements,” establishes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the third is considered unobservable: · Level 1: Quoted prices for identical assets or liabilities in active markets which the Company can access. · Level 2: Observable inputs other than those described in Level 1. · Level 3: Unobservable inputs. The Company’s cash equivalents are investments in money market accounts, which represent the only asset the Company measures at fair value on a recurring basis. The Company determines the fair value of our cash equivalents using a market approach based on quoted prices in active markets. The fair values of cash, accounts receivable, income taxes receivable, accounts payable, income taxes payable and accrued expenses and other current liabilities (excluding contingent considerations) approximate their carrying values because of their short-term nature. Contingent consideration On December 18, 2015, the Company acquired all assets and certain liabilities of Skyetek Inc. (“Skyetek”). Under the purchase and sale agreement for the Skyetek acquisition, the owners of Skyetek are eligible to receive contingent consideration based on the achievement of certain sales order commitment targets from October 2015 through June 2017. If such targets are achieved, the contingent consideration will be payable in 2017. The Company recognized an estimated fair value of $0.2 million as part of the purchase price as of the acquisition date. The estimated fair value of the contingent consideration is reported as an other liability in the consolidated balance sheet as of April 1, 2016 and December 31, 2015, respectively. Under the purchase and sale agreement for the Lincoln Laser acquisition, the shareholders of Lincoln Laser are eligible to receive contingent consideration based on the achievement of certain revenue targets for fiscal year 2016. If such targets are achieved, the contingent consideration will be payable in cash in 2017. The estimated fair value of $2.3 million was determined based on the Monte Carlo valuation method and was recorded as part of the purchase price as of the acquisition date. The estimated fair value of the contingent consideration is reported as an other current liability and an other liability in the consolidated balance sheet as of April 1, 2016 and December 31, 2015, respectively. On February 19, 2015, the Company acquired Applimotion Inc. (“Applimotion”). The former shareholders of Applimotion are eligible to receive contingent consideration based on the achievement of certain revenue targets for fiscal years 2015 to 2017. If such targets are achieved, the contingent consideration will be payable in cash in two installments in 2017 and 2018, respectively. The estimated fair value of $1.0 million was determined based on the Monte Carlo valuation method and was recorded as part of the purchase price as of the acquisition date. In December 2015, a $0.4 million increase in the estimated fair value was recorded in the consolidated statement of operations in restructuring, acquisition and divestiture related costs. The estimated fair value of the contingent consideration is reported as an other current liability and an other liability in the consolidated balance sheet as of April 1, 2016 and as a long-term liability as of December 31, 2015 in accordance with the timing of the estimated payments. The following table summarizes the fair values of our financial assets and liabilities as of April 1, 2016 (in thousands): Quoted Prices in Significant Other Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Fair Value (Level 1) (Level 2) (Level 3) Assets Cash equivalents $ 3,607 $ 3,607 $ — $ — Liabilities Contingent consideration $ 3,889 $ — $ — $ 3,889 The following table summarizes the fair values of our financial assets and liabilities as of December 31, 2015 (in thousands): Quoted Prices in Significant Other Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Fair Value (Level 1) (Level 2) (Level 3) Assets Cash equivalents $ 4,657 $ 4,657 $ — $ — Liabilities Contingent consideration $ 3,889 $ — $ — $ 3,889 Changes in the fair value of Level 3 contingent consideration during the three months ended April 1, 2016 were as follows (in thousands): Contingent Consideration Balance at December 31, 2015 $ 3,889 Fair value adjustment — Balance at April 1, 2016 $ 3,889 See Note 9 to Consolidated Financial Statements for a discussion of the estimated fair value of the Company’s outstanding debt.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Apr. 01, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	7. Goodwill and Intangible Assets Goodwill Goodwill is recorded when the consideration for a business combination exceeds the fair value of net tangible and identifiable intangible assets acquired. The Company tests its goodwill balances annually for impairment as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that impairment may exist. The Company performed its annual goodwill impairment test at the beginning of the second quarter of 2015 and noted no impairment of goodwill. With the exception of our NDS reporting unit, implied fair value of reporting units exceeded their carrying values by at least 20%. The following table summarizes changes in goodwill during the three months ended April 1, 2016 (in thousands): Balance at beginning of the period $ 103,456 Net working capital adjustment of Lincoln Laser acquisition (43 ) Balance at end of the period $ 103,413 Goodwill by reportable segment as of April 1, 2016 was as follows (in thousands): Reportable Segment Laser Products Vision Technologies Precision Motion Total Goodwill $ 136,278 $ 84,401 $ 33,963 $ 254,642 Accumulated impairment of goodwill (102,461 ) (31,722 ) (17,046 ) (151,229 ) Total $ 33,817 $ 52,679 $ 16,917 $ 103,413 Goodwill by reportable segment as of December 31, 2015 was as follows (in thousands): Reportable Segment Laser Products Vision Technologies Precision Motion Total Goodwill $ 136,321 $ 84,401 $ 33,963 $ 254,685 Accumulated impairment of goodwill (102,461 ) (31,722 ) (17,046 ) (151,229 ) Total $ 33,860 $ 52,679 $ 16,917 $ 103,456 Intangible Assets Intangible assets as of April 1, 2016 and December 31, 2015, respectively, are summarized as follows (in thousands): April 1, 2016 December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Amount Accumulated Amortization Net Carrying Amount Amortizable intangible assets: Patents and acquired technologies $ 80,977 $ (65,636 ) $ 15,341 $ 82,821 $ (66,297 ) $ 16,524 Customer relationships 67,102 (38,411 ) 28,691 67,168 (36,914 ) 30,254 Customer backlog 2,644 (2,602 ) 42 2,644 (2,589 ) 55 Non-compete covenant 2,514 (1,016 ) 1,498 2,514 (882 ) 1,632 Trademarks and trade names 10,667 (6,298 ) 4,369 10,711 (5,934 ) 4,777 Amortizable intangible assets 163,904 (113,963 ) 49,941 165,858 (112,616 ) 53,242 Non-amortizable intangible assets: Trade names 13,027 — 13,027 13,027 — 13,027 Totals $ 176,931 $ (113,963 ) $ 62,968 $ 178,885 $ (112,616 ) $ 66,269 All definite-lived intangible assets are amortized either on a straight-line basis or an economic benefit basis over their remaining useful life. Amortization expense for customer relationships and definite-lived trademarks, trade names and other intangibles is included in operating expenses in the accompanying consolidated statements of operations. Amortization expense for patents and acquired technologies is included in cost of revenue in the accompanying consolidated statements of operations. Amortization expense is as follows (in thousands): Three Months Ended April 1, 2016 April 3, 2015 Amortization expense – cost of revenue $ 1,184 $ 1,119 Amortization expense – operating expenses 2,108 1,889 Total amortization expense $ 3,292 $ 3,008 Estimated amortization expense for each of the five succeeding years and thereafter as of April 1, 2016 was as follows (in thousands): Year Ending December 31, Cost of Revenue Operating Expenses Total 2016 (remainder of year) $ 2,909 $ 5,608 $ 8,517 2017 3,542 6,877 10,419 2018 2,044 6,285 8,329 2019 1,751 4,306 6,057 2020 1,494 2,401 3,895 Thereafter 3,601 9,123 12,724 Total $ 15,341 $ 34,600 $ 49,941

Supplementary Balance Sheet Inf

Supplementary Balance Sheet Information	3 Months Ended
	Apr. 01, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Supplementary Balance Sheet Information	8. Supplementary Balance Sheet Information The following tables provide the details of selected balance sheet items as of the periods indicated (in thousands): Inventories April 1, 2016 December 31, 2015 Raw materials $ 37,486 $ 38,511 Work-in-process 12,438 10,138 Finished goods 11,146 9,266 Demo and consigned inventory 694 1,651 Total inventories $ 61,764 $ 59,566 Accrued Expenses and Other Current Liabilities April 1, 2016 December 31, 2015 Accrued compensation and benefits $ 7,741 $ 7,357 Accrued warranty 3,248 3,335 Accrued restructuring 2,383 1,652 Accrued contingent considerations 2,901 — Accrued professional services fees and other 8,001 8,838 Total $ 24,274 $ 21,182 Accrued Warranty Three Months Ended April 1, 2016 April 3, 2015 Balance at beginning of the period $ 3,335 $ 3,044 Provision charged to cost of revenue 310 429 Acquisition related warranty accrual — 94 Use of provision (393 ) (342 ) Reclassification to liabilities held for sale — (376 ) Foreign currency exchange rate changes (4 ) (24 ) Balance at end of period $ 3,248 $ 2,825 Other Long Term Liabilities April 1, 2016 December 31, 2015 Capital lease obligations $ 8,955 $ 9,173 Accrued pension liabilities 3,287 3,693 Accrued contingent considerations 988 3,889 Other 2,515 2,690 Total $ 15,745 $ 19,445

Debt

Debt	3 Months Ended
	Apr. 01, 2016
Debt Disclosure [Abstract]
Debt	9. Debt Debt consisted of the following (in thousands): April 1, 2016 December 31, 2015 Senior Credit Facilities – term loan $ 7,500 $ 7,500 Less: unamortized debt issuance costs (105 ) (115 ) Total current portion of long-term debt $ 7,395 $ 7,385 Senior Credit Facilities – term loan $ 18,125 $ 20,000 Senior Credit Facilities – revolving credit facility 70,000 70,000 Less: unamortized debt issuance costs (1,362 ) (1,574 ) Total long-term debt $ 86,763 $ 88,426 Total Senior Credit Facilities $ 94,158 $ 95,811 Senior Credit Facilities The Company’s amended and restated senior secured credit agreement (the “Amended and Restated Credit Agreement”) provides for a $50.0 million, 5-year, term loan facility due in quarterly installments of $1.9 million beginning in January 2013 and a $175.0 million, 5-year, revolving credit facility (collectively, the “Senior Credit Facilities”) that matures in December 2017. Quarterly installments due in the next twelve months under the term loan amount to $7.5 million and are classified as a current liability in the consolidated balance sheet. The Company is required to satisfy certain financial and non-financial covenants under the Amended and Restated Credit Agreement. The Company was in compliance with these covenants as of April 1, 2016. Fair Value of Debt As of April 1, 2016 and December 31, 2015, the outstanding balance of the Company’s debt approximated its fair value based on current rates available to the Company for debt of the same maturity.

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Apr. 01, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	10. Share-Based Compensation The table below summarizes share-based compensation expense recorded in income from continuing operations in the consolidated statements of operations (in thousands): Three Months Ended April 1, 2016 April 3, 2015 Selling, general and administrative $ 1,243 $ 1,484 Research and development and engineering 25 49 Cost of revenue 74 64 Restructuring, acquisition and divestiture related costs — (44 ) Total share-based compensation expense $ 1,342 $ 1,553 The expense recorded during each of the three-month periods ended April 1, 2016 and April 3, 2015, respectively, included $0.5 million related to deferred stock units granted to the members of the Company’s Board of Directors. Restricted Stock Units and Deferred Stock Units The Company’s restricted stock units (“RSUs”) have generally been issued with a three-year vesting period and vest based solely on service conditions. Accordingly, the Company recognizes compensation expense on a straight-line basis over the requisite service period. The Company reduces the compensation expense by an estimated forfeiture rate which is based on anticipated forfeitures and actual experience. Deferred stock units (“DSUs”) are granted to the members of the Company’s Board of Directors. The compensation expense associated with the DSUs is recognized in full on the respective date of grant, as DSUs are fully vested and non-forfeitable upon grant. The table below summarizes activities relating to RSUs and DSUs issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the three months ended April 1, 2016: Shares (In thousands) Weighted Average Grant Date Fair Value Unvested at December 31, 2015 619 $ 12.32 Granted 309 $ 13.20 Vested (307 ) $ 11.96 Forfeited (6 ) $ 11.05 Unvested at April 1, 2016 615 $ 12.75 Expected to vest as of April 1, 2016 586 The total fair value of RSUs and DSUs that vested during the three months ended April 1, 2016 was $4.0 million based on the market price of the underlying stock on the date of vesting. Performance Stock Units On March 30, 2016, the Company granted 46 thousand performance stock units (“PSUs”) to certain members of the executive management team. The performance objective is measured using cumulative Non-GAAP EPS over a three-year performance cycle. The Company recognizes compensation expense for PSUs on a straight-line basis. Compensation expense is determined based on the number of shares that are deemed probable of vesting at the end of the three-year performance cycle. This probability assessment is performed each quarter. The cumulative effect of the changes in the estimated compensation expense will be recognized in the consolidated statement of operations in the period in which such determination is made. The table below summarizes activities relating to PSUs issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the three months ended April 1, 2016: Shares (In thousands) Weighted Average Grant Date Fair Value Unvested at December 31, 2015 — $ — Granted 46 $ 14.13 Vested — $ — Forfeited — $ — Unvested at April 1, 2016 46 $ 14.13 Expected to vest as of April 1, 2016 46 Stock Options On March 30, 2016, the Company granted 193 thousand stock options to certain members of the executive management team to purchase common shares of the Company at a price equal to the closing market price of the Company’s common shares on the date of grant. The stock options vest ratably over a three-year period from the date of grant and expire on the tenth anniversary of the date of grant. We estimate the fair value of stock options using the Black-Scholes valuation model. Key input assumptions used to estimate the fair value of stock options include the expected option term, the expected volatility of our common stock over the expected term of the options, the risk-free interest rate, and our expected dividend yield. The Company recognizes the compensation expense of stock options on a straight-line basis in the consolidated statement of operations over the vesting period. The table below summarizes activities relating to stock options issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the three months ended April 1, 2016: Shares (In thousands) Weighted Average Exercise Price Outstanding as of December 31, 2015 — $ — Granted 193 $ 14.13 Exercised — $ — Forfeited or expired — $ — Outstanding as of April 1, 2016 193 $ 14.13 Exercisable as of April 1, 2016 — Expected to vest as of April 1, 2016 193 The fair value of stock options granted during the three months ended April 1, 2016 was estimated as of the grant date using the Black-Scholes valuation model with the following assumptions: Three Months Ended April 1, 2016 Expected option term in years (1) 6.0 Expected volatility (2) 33.8 % Risk-free interest rate (3) 1.6 % Expected annual dividend yield (4) — (1) The expected option term was calculated using the simplified method provided by Codification of Staff Accounting Bulletin Topic 14: “Share-Based Payment”. (2) The expected volatility was determined based on the historical volatility of the Company’s common stock over the expected option term. (3) Risk-free interest rate was based upon treasury instrument whose term was one year longer than the expected option term. (4) The expected annual dividend yield is zero, as the Company does not have plans to issue dividends. The aggregate Black-Scholes fair value of the stock options granted during the three months ended April 1, 2016 was $1.0 million.

Income Taxes

Income Taxes	3 Months Ended
	Apr. 01, 2016
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes The Company determines its estimated annual effective tax rate at the end of each interim period based on full-year forecasted pre-tax income and facts known at that time. The estimated annual effective tax rate is applied to the year-to-date pre-tax income at the end of each interim period. The tax effect of significant unusual items is reflected in the period in which they occur. Since the Company is incorporated in Canada, it is required to use Canada’s statutory tax rate of 27.0% in the determination of the estimated annual effective tax rate. The Company’s effective tax rate on income from continuing operations of 14.5% for the three months ended April 1, 2016 differs from the Canadian statutory rate of 27.0% primarily due to the mix of income earned in jurisdictions with varying tax rates, losses in jurisdictions with a full valuation allowance, the Laser Quantum dividend distribution and the impact of other discrete items for the period. The Company received a tax free cash dividend of $2.3 million from Laser Quantum, which had an 18.9% favorable impact on our effective tax rate for the three months ended April 1, 2016. The Company’s effective tax rate on income from continuing operations of 34.3% for the three months ended April 3, 2015 differs from the Canadian statutory rate primarily due to the mix of income earned in jurisdictions with varying tax rates, losses in jurisdictions with a full valuation allowance, and the impact of discrete items for the period. The Company maintains a valuation allowance on some of its deferred tax assets in certain jurisdictions. A valuation allowance is required when, based upon an assessment of various factors, including recent operating loss history, anticipated future earnings, and prudent and reasonable tax planning strategies, it is more likely than not that some portion of the deferred tax assets will not be realized.

Restructuring, Acquisition and

Restructuring, Acquisition and Divestiture Related Costs	3 Months Ended
	Apr. 01, 2016
Restructuring And Related Activities [Abstract]
Restructuring, Acquisition and Divestiture Related Costs	12. Restructuring, Acquisition and Divestiture Related Costs The following table summarizes restructuring, acquisition and divestiture related costs in the accompanying consolidated statements of operations (in thousands): Three Months Ended April 1, 2016 April 3, 2015 2016 restructuring $ 2,500 $ — 2015 restructuring — 1,370 2011 restructuring 212 383 Total restructuring charges 2,712 1,753 Acquisition and related charges 246 127 Divestiture related charges — 557 Total acquisition and divestiture related charges 246 684 Total restructuring, acquisition and divestiture related costs $ 2,958 $ 2,437 2016 Restructuring During the third quarter of 2015, the Company initiated the 2016 restructuring program, which includes consolidating certain of our manufacturing operations to optimize our facility footprint and better utilize resources, and reducing redundant costs due to productivity cost savings and business volume reductions. We anticipate completing the 2016 restructuring program during the second quarter of 2016. During the three months ended April 1, 2016, the Company incurred restructuring costs of $2.5 million related to the 2016 restructuring plan. Restructuring costs incurred during the three months ended April 1, 2016 of $0.5 million, $1.7 million, $0.1 million and $0.2 million related to the Laser Products, Vision Technologies, Precision Motion and Unallocated Corporate and Shared Services reportable segments, respectively. As of April 1, 2016, the Company incurred cumulative costs related to this restructuring plan totaling $5.6 million. The Company expects to incur additional restructuring charges of $1.0 million to $1.6 million related to the 2016 restructuring plan. 2015 Restructuring During the first quarter of 2015, the Company initiated a program to eliminate redundant costs, as a result of acquisition and divestiture activities, to better align our operations to our strategic growth plans, to further integrate our business lines, and as a consequence of our productivity initiatives. During the three months ended April 3, 2015, the Company incurred $1.3 million in severance costs related to the 2015 restructuring. Restructuring costs of $0.6 million, $0.4 million, $0.1 million and $0.3 million related to the Laser Products, Vision Technologies, Precision Motion and Unallocated Corporate and Shared Services reportable segments, respectively. 2011 Restructuring In November 2011, the Company announced a strategic initiative (“2011 restructuring”), which aimed to consolidate operations to reduce the Company’s cost structure and improve operational efficiency. As part of this initiative, the Company eliminated facilities through the consolidation of certain manufacturing, sales and distribution facilities and the exit of Semiconductor and Laser Systems businesses. The Company substantially completed the 2011 restructuring program by the end of 2013. In March 2016, the Company sold our previously exited Laser Systems facility located in Orlando, Florida for a net cash consideration of $3.6 million. Restructuring costs for the three months ended April 1, 2016 included facility costs of $0.2 million related to the Orlando, Florida facility. These costs were recorded in the Unallocated Corporate and Shared Services reportable segment. Rollforward of Accrued Expenses Related to Restructuring The following table summarizes the accrual activities, by component, related to the Company’s restructuring plans recorded in the accompanying consolidated balance sheets (in thousands): Total Severance Facility Depreciation Other Balance at December 31, 2015 $ 1,882 $ 1,358 $ 406 $ — $ 118 Restructuring charges 2,712 1,585 115 602 410 Cash payments (1,330 ) (975 ) (28 ) — (327 ) Non-cash write-offs and other adjustments (604 ) — — (602 ) (2 ) Balance at April 1, 2016 $ 2,660 $ 1,968 $ 493 $ — $ 199

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Apr. 01, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. Commitments and Contingencies Leases The Company leases certain equipment and facilities under operating and capital lease agreements. There have been no material changes to the Company’s leases through April 1, 2016 from those discussed in Note 15 to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. Purchase Commitments There have been no material changes to the Company’s purchase commitments since December 31, 2015. Legal Contingencies The Company is subject to various legal proceedings and claims that arise in the ordinary course of business. The Company does not believe that the outcome of these claims will have a material adverse effect upon its consolidated financial statements but there can be no assurance that any such claims, or any similar claims, would not have a material adverse effect upon its consolidated financial statements. Guarantees and Indemnifications In the normal course of its operations, the Company executes agreements that provide for indemnification and guarantees to counterparties in transactions such as business dispositions, sale of assets, sale of products and operating leases. Additionally, the by-laws of the Company require it to indemnify certain current or former directors, officers, and employees of the Company against expenses incurred by them in connection with each proceeding in which he or she is involved as a result of serving or having served in certain capacities. Indemnification is not available with respect to a proceeding as to which it has been adjudicated that the person did not act in good faith in the reasonable belief that the action was in the best interests of the Company. Certain of our officers and directors are also a party to indemnification agreements with the Company. These indemnification agreements provide, among other things, that the director and officer shall be indemnified to the fullest extent permitted by applicable law against all expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred by such officer or director in connection with any proceeding by reason of his or her relationship with the Company. In addition, the indemnification agreements provide for the advancement of expenses incurred by such director or officer in connection with any proceeding covered by the indemnification agreement, subject to the conditions set forth therein and to the extent such advancement is not prohibited by law. The indemnification agreements also set out the procedures for determining entitlement to indemnification, the requirements relating to notice and defense of claims for which indemnification is sought, the procedures for enforcement of indemnification rights, the limitations on and exclusions from indemnification, and the minimum levels of directors’ and officers’ liability insurance to be maintained by the Company.

Segment Information

Segment Information	3 Months Ended
	Apr. 01, 2016
Segment Reporting [Abstract]
Segment Information	14. Segment Information The Company evaluates the performance of, and allocates resources to, its segments based on revenue, gross profit and operating profit. The Company’s reportable segments have been identified based on commonality and adjacency of technologies, applications and customers amongst the Company’s individual product lines. We operate in three reportable segments: Laser Products, Vision Technologies, and Precision Motion. The reportable segments and their principal activities consist of the following: Laser Products The Laser Products segment designs, manufactures and markets photonics-based solutions, including CO2 laser sources, laser scanning and beam delivery products, to customers worldwide. The segment serves highly demanding photonics-based applications such as industrial material processing, metrology, medical and life science imaging, and medical laser procedures. The vast majority of the segment’s product offerings are sold to OEM customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors. Vision Technologies The Vision Technologies segment designs, manufactures and markets a range of medical grade technologies, including visualization solutions, imaging informatics products, optical data collection and machine vision technologies, RFID technologies, thermal printers, and light and color measurement instrumentation, to customers worldwide. The vast majority of the segment’s product offerings are sold to OEM customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors. Precision Motion The Precision Motion segment designs, manufactures and markets optical encoders, precision motor and motion control technology, air bearing spindles and precision machined components to customers worldwide. The vast majority of the segment’s product offerings are sold into the advanced industrial market and the medical market. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors. Reportable Segment Financial Information Revenue, gross profit, gross profit margin, operating income (loss) from continuing operations, and depreciation and amortization by reportable segments are as follows (in thousands): Three Months Ended April 1, 2016 April 3, 2015 Revenue Laser Products $ 40,358 $ 44,955 Vision Technologies 28,862 31,111 Precision Motion 21,096 18,548 Total $ 90,316 $ 94,614 Three Months Ended April 1, 2016 April 3, 2015 Gross Profit Laser Products $ 17,997 $ 19,375 Vision Technologies 9,579 12,513 Precision Motion 9,668 8,465 Unallocated Corporate and Shared Services (352 ) (347 ) Total $ 36,892 $ 40,006 Three Months Ended April 1, 2016 April 3, 2015 Gross Profit Margin Laser Products 44.6 % 43.1 % Vision Technologies 33.2 % 40.2 % Precision Motion 45.8 % 45.6 % Total 40.8 % 42.3 % Three Months Ended April 1, 2016 April 3, 2015 Operating Income (Loss) from Continuing Operations Laser Products $ 6,856 $ 8,395 Vision Technologies (3,771 ) (654 ) Precision Motion 5,235 4,137 Unallocated Corporate and Shared Services (5,733 ) (6,481 ) Total $ 2,587 $ 5,397 Three Months Ended April 1, 2016 April 3, 2015 Depreciation and Amortization Laser Products $ 1,544 $ 1,582 Vision Technologies 3,100 2,258 Precision Motion 614 473 Unallocated Corporate and Shared Services 573 449 Total $ 5,831 $ 4,762

Basis of Presentation (Policies

Basis of Presentation (Policies)	3 Months Ended
	Apr. 01, 2016
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. The Company evaluates its estimates based on historical experience, current conditions and various other assumptions that it believes are reasonable under the circumstances. Estimates and assumptions are reviewed on an on-going basis and the effects of revisions are reflected in the period in which they are deemed to be necessary. Actual results could differ significantly from those estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Share-Based Compensation In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” which amends the accounting for employee share-based payment transactions to require recognition of the tax effects resulting from the settlement of stock-based awards as income tax expense or benefit in the income statement in the reporting period in which they occur. In addition, the ASU requires that all tax-related cash flows resulting from share-based payments, including the excess tax benefits related to the settlement of stock-based awards, be classified as cash flows from operating activities in the statement of cash flows. This ASU also requires that cash paid through directly withholding shares for tax-withholding purposes be classified as a financing activity in the statement of cash flows. In addition, this ASU allows companies to make an accounting policy election to either estimate the number of awards that are expected to vest, consistent with current U.S. GAAP, or account for forfeitures when they occur. The new standard is effective for annual reporting periods beginning after December 15, 2016, with early adoption permitted. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Leases In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” which provides comprehensive lease accounting guidance. The standard requires entities to recognize lease assets and liabilities on the balance sheet and to disclose key information about leasing arrangements. ASU 2016-02 will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern In August 2014, the FASB issued ASU 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40),” which requires management to assess a company’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. ASU 2014-15 will be effective for annual reporting periods ending after December 15, 2016. Early application is permitted. The Company does not expect the adoption of ASU 2014-15 to have an impact on the Company’s consolidated financial statements. Revenue from Contracts with Customers In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers,” which provides guidance for revenue recognition. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, “Revenue Recognition,” and requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for annual and interim reporting periods beginning after December 15, 2016. Early adoption is not permitted. Upon adoption, an entity may apply the new guidance either retrospectively to each prior reporting period presented or retrospectively only to customer contracts not yet completed as of the date of adoption with the cumulative effect of initially applying the standard recognized in beginning retained earnings at the date of the initial application. In August 2015, the FASB issued ASU 2015-14, “Revenue from Contracts with Customers – Deferral of the Effective Date,” which defers the effective date of ASU 2014-09 by one year, with the option of early adoption as of the original effective date. The amendment in ASU 2015-14 will result in ASU 2014-09 being effective for annual and interim reporting periods beginning after December 15, 2017. The Company is currently evaluating the impact of the new standard on our consolidated financial statements.

Accumulated Other Comprehensi23

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Apr. 01, 2016
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	Changes in accumulated other comprehensive income (loss) was as follows (in thousands): Total accumulated other Foreign currency comprehensive translation Pension income (loss) adjustments liability Balance at December 31, 2015 $ (18,830 ) $ (9,698 ) $ (9,132 ) Other comprehensive income (loss) 321 65 256 Amounts reclassified from other comprehensive income (loss) (1) 193 — 193 Balance at April 1, 2016 $ (18,316 ) $ (9,633 ) $ (8,683 ) (1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

Earnings per Share (Tables)

Earnings per Share (Tables)	3 Months Ended
	Apr. 01, 2016
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings per Share	The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share amounts): Three April 1, April 3, 2016 2015 Numerators: Income from continuing operations $ 1,906 $ 3,446 Loss from discontinued operations — — Consolidated net income $ 1,906 $ 3,446 Denominators: Weighted average common shares outstanding— basic 34,657 34,506 Dilutive potential common shares 196 493 Weighted average common shares outstanding— diluted 34,853 34,999 Antidilutive common shares excluded from above — — Basic Earnings per Common Share: From continuing operations $ 0.05 $ 0.10 From discontinued operations $ — $ — Basic earnings per share $ 0.05 $ 0.10 Diluted Earnings per Common Share: From continuing operations $ 0.05 $ 0.10 From discontinued operations $ — $ — Diluted earnings per share $ 0.05 $ 0.10

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Apr. 01, 2016
Fair Value Disclosures [Abstract]
Fair Values of Financial Assets and Liabilities	The following table summarizes the fair values of our financial assets and liabilities as of April 1, 2016 (in thousands): Quoted Prices in Significant Other Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Fair Value (Level 1) (Level 2) (Level 3) Assets Cash equivalents $ 3,607 $ 3,607 $ — $ — Liabilities Contingent consideration $ 3,889 $ — $ — $ 3,889 The following table summarizes the fair values of our financial assets and liabilities as of December 31, 2015 (in thousands): Quoted Prices in Significant Other Active Markets for Significant Other Unobservable Identical Assets Observable Inputs Inputs Fair Value (Level 1) (Level 2) (Level 3) Assets Cash equivalents $ 4,657 $ 4,657 $ — $ — Liabilities Contingent consideration $ 3,889 $ — $ — $ 3,889
Changes in Fair Value of Level 3 Contingent Consideration	Changes in the fair value of Level 3 contingent consideration during the three months ended April 1, 2016 were as follows (in thousands): Contingent Consideration Balance at December 31, 2015 $ 3,889 Fair value adjustment — Balance at April 1, 2016 $ 3,889

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Apr. 01, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Changes in Goodwill	The following table summarizes changes in goodwill during the three months ended April 1, 2016 (in thousands): Balance at beginning of the period $ 103,456 Net working capital adjustment of Lincoln Laser acquisition (43 ) Balance at end of the period $ 103,413
Goodwill by Reportable Segment	Goodwill by reportable segment as of April 1, 2016 was as follows (in thousands): Reportable Segment Laser Products Vision Technologies Precision Motion Total Goodwill $ 136,278 $ 84,401 $ 33,963 $ 254,642 Accumulated impairment of goodwill (102,461 ) (31,722 ) (17,046 ) (151,229 ) Total $ 33,817 $ 52,679 $ 16,917 $ 103,413 Goodwill by reportable segment as of December 31, 2015 was as follows (in thousands): Reportable Segment Laser Products Vision Technologies Precision Motion Total Goodwill $ 136,321 $ 84,401 $ 33,963 $ 254,685 Accumulated impairment of goodwill (102,461 ) (31,722 ) (17,046 ) (151,229 ) Total $ 33,860 $ 52,679 $ 16,917 $ 103,456
Intangible Assets	Intangible assets as of April 1, 2016 and December 31, 2015, respectively, are summarized as follows (in thousands): April 1, 2016 December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Amount Accumulated Amortization Net Carrying Amount Amortizable intangible assets: Patents and acquired technologies $ 80,977 $ (65,636 ) $ 15,341 $ 82,821 $ (66,297 ) $ 16,524 Customer relationships 67,102 (38,411 ) 28,691 67,168 (36,914 ) 30,254 Customer backlog 2,644 (2,602 ) 42 2,644 (2,589 ) 55 Non-compete covenant 2,514 (1,016 ) 1,498 2,514 (882 ) 1,632 Trademarks and trade names 10,667 (6,298 ) 4,369 10,711 (5,934 ) 4,777 Amortizable intangible assets 163,904 (113,963 ) 49,941 165,858 (112,616 ) 53,242 Non-amortizable intangible assets: Trade names 13,027 — 13,027 13,027 — 13,027 Totals $ 176,931 $ (113,963 ) $ 62,968 $ 178,885 $ (112,616 ) $ 66,269
Amortization Expense of Intangible Assets	Amortization expense is as follows (in thousands): Three Months Ended April 1, 2016 April 3, 2015 Amortization expense – cost of revenue $ 1,184 $ 1,119 Amortization expense – operating expenses 2,108 1,889 Total amortization expense $ 3,292 $ 3,008
Estimated Amortization Expense	Estimated amortization expense for each of the five succeeding years and thereafter as of April 1, 2016 was as follows (in thousands): Year Ending December 31, Cost of Revenue Operating Expenses Total 2016 (remainder of year) $ 2,909 $ 5,608 $ 8,517 2017 3,542 6,877 10,419 2018 2,044 6,285 8,329 2019 1,751 4,306 6,057 2020 1,494 2,401 3,895 Thereafter 3,601 9,123 12,724 Total $ 15,341 $ 34,600 $ 49,941

Supplementary Balance Sheet I27

Supplementary Balance Sheet Information (Tables)	3 Months Ended
	Apr. 01, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Inventories	Inventories April 1, 2016 December 31, 2015 Raw materials $ 37,486 $ 38,511 Work-in-process 12,438 10,138 Finished goods 11,146 9,266 Demo and consigned inventory 694 1,651 Total inventories $ 61,764 $ 59,566
Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities April 1, 2016 December 31, 2015 Accrued compensation and benefits $ 7,741 $ 7,357 Accrued warranty 3,248 3,335 Accrued restructuring 2,383 1,652 Accrued contingent considerations 2,901 — Accrued professional services fees and other 8,001 8,838 Total $ 24,274 $ 21,182
Accrued Warranty	Accrued Warranty Three Months Ended April 1, 2016 April 3, 2015 Balance at beginning of the period $ 3,335 $ 3,044 Provision charged to cost of revenue 310 429 Acquisition related warranty accrual — 94 Use of provision (393 ) (342 ) Reclassification to liabilities held for sale — (376 ) Foreign currency exchange rate changes (4 ) (24 ) Balance at end of period $ 3,248 $ 2,825
Summary of Other Long Term Liabilities	Other Long Term Liabilities April 1, 2016 December 31, 2015 Capital lease obligations $ 8,955 $ 9,173 Accrued pension liabilities 3,287 3,693 Accrued contingent considerations 988 3,889 Other 2,515 2,690 Total $ 15,745 $ 19,445

Debt (Tables)

Debt (Tables)	3 Months Ended
	Apr. 01, 2016
Debt Disclosure [Abstract]
Debt	Debt consisted of the following (in thousands): April 1, 2016 December 31, 2015 Senior Credit Facilities – term loan $ 7,500 $ 7,500 Less: unamortized debt issuance costs (105 ) (115 ) Total current portion of long-term debt $ 7,395 $ 7,385 Senior Credit Facilities – term loan $ 18,125 $ 20,000 Senior Credit Facilities – revolving credit facility 70,000 70,000 Less: unamortized debt issuance costs (1,362 ) (1,574 ) Total long-term debt $ 86,763 $ 88,426 Total Senior Credit Facilities $ 94,158 $ 95,811

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
	Apr. 01, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share Based Compensation Expense Recorded In Income from Continuing Operations in Statements of Operations	The table below summarizes share-based compensation expense recorded in income from continuing operations in the consolidated statements of operations (in thousands): Three Months Ended April 1, 2016 April 3, 2015 Selling, general and administrative $ 1,243 $ 1,484 Research and development and engineering 25 49 Cost of revenue 74 64 Restructuring, acquisition and divestiture related costs — (44 ) Total share-based compensation expense $ 1,342 $ 1,553
Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model	The fair value of stock options granted during the three months ended April 1, 2016 was estimated as of the grant date using the Black-Scholes valuation model with the following assumptions: Three Months Ended April 1, 2016 Expected option term in years (1) 6.0 Expected volatility (2) 33.8 % Risk-free interest rate (3) 1.6 % Expected annual dividend yield (4) — (1) The expected option term was calculated using the simplified method provided by Codification of Staff Accounting Bulletin Topic 14: “Share-Based Payment”. (2) The expected volatility was determined based on the historical volatility of the Company’s common stock over the expected option term. (3) Risk-free interest rate was based upon treasury instrument whose term was one year longer than the expected option term. (4) The expected annual dividend yield is zero, as the Company does not have plans to issue dividends.
2010 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock Issued and Outstanding	The table below summarizes activities relating to RSUs and DSUs issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the three months ended April 1, 2016: Shares (In thousands) Weighted Average Grant Date Fair Value Unvested at December 31, 2015 619 $ 12.32 Granted 309 $ 13.20 Vested (307 ) $ 11.96 Forfeited (6 ) $ 11.05 Unvested at April 1, 2016 615 $ 12.75 Expected to vest as of April 1, 2016 586
Performance Stock Units Issued and Outstanding	The table below summarizes activities relating to PSUs issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the three months ended April 1, 2016: Shares (In thousands) Weighted Average Grant Date Fair Value Unvested at December 31, 2015 — $ — Granted 46 $ 14.13 Vested — $ — Forfeited — $ — Unvested at April 1, 2016 46 $ 14.13 Expected to vest as of April 1, 2016 46
Stock Options Issued and Outstanding	The table below summarizes activities relating to stock options issued and outstanding under the Company’s Amended and Restated 2010 Incentive Plan during the three months ended April 1, 2016: Shares (In thousands) Weighted Average Exercise Price Outstanding as of December 31, 2015 — $ — Granted 193 $ 14.13 Exercised — $ — Forfeited or expired — $ — Outstanding as of April 1, 2016 193 $ 14.13 Exercisable as of April 1, 2016 — Expected to vest as of April 1, 2016 193

Restructuring, Acquisition an30

Restructuring, Acquisition and Divestiture Related Costs (Tables)	3 Months Ended
	Apr. 01, 2016
Restructuring And Related Activities [Abstract]
Schedule Of Restructuring And Related Cost	The following table summarizes restructuring, acquisition and divestiture related costs in the accompanying consolidated statements of operations (in thousands): Three Months Ended April 1, 2016 April 3, 2015 2016 restructuring $ 2,500 $ — 2015 restructuring — 1,370 2011 restructuring 212 383 Total restructuring charges 2,712 1,753 Acquisition and related charges 246 127 Divestiture related charges — 557 Total acquisition and divestiture related charges 246 684 Total restructuring, acquisition and divestiture related costs $ 2,958 $ 2,437
Summary of Accrual Activities by Components Related to Company's Restructuring Plans	The following table summarizes the accrual activities, by component, related to the Company’s restructuring plans recorded in the accompanying consolidated balance sheets (in thousands): Total Severance Facility Depreciation Other Balance at December 31, 2015 $ 1,882 $ 1,358 $ 406 $ — $ 118 Restructuring charges 2,712 1,585 115 602 410 Cash payments (1,330 ) (975 ) (28 ) — (327 ) Non-cash write-offs and other adjustments (604 ) — — (602 ) (2 ) Balance at April 1, 2016 $ 2,660 $ 1,968 $ 493 $ — $ 199

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Apr. 01, 2016
Segment Reporting [Abstract]
Revenue, Gross Profit, Gross Profit Margin, Operating Income (Loss) from Continuing Operations, and Depreciation and Amortization by Reportable Segments	Revenue, gross profit, gross profit margin, operating income (loss) from continuing operations, and depreciation and amortization by reportable segments are as follows (in thousands): Three Months Ended April 1, 2016 April 3, 2015 Revenue Laser Products $ 40,358 $ 44,955 Vision Technologies 28,862 31,111 Precision Motion 21,096 18,548 Total $ 90,316 $ 94,614 Three Months Ended April 1, 2016 April 3, 2015 Gross Profit Laser Products $ 17,997 $ 19,375 Vision Technologies 9,579 12,513 Precision Motion 9,668 8,465 Unallocated Corporate and Shared Services (352 ) (347 ) Total $ 36,892 $ 40,006 Three Months Ended April 1, 2016 April 3, 2015 Gross Profit Margin Laser Products 44.6 % 43.1 % Vision Technologies 33.2 % 40.2 % Precision Motion 45.8 % 45.6 % Total 40.8 % 42.3 % Three Months Ended April 1, 2016 April 3, 2015 Operating Income (Loss) from Continuing Operations Laser Products $ 6,856 $ 8,395 Vision Technologies (3,771 ) (654 ) Precision Motion 5,235 4,137 Unallocated Corporate and Shared Services (5,733 ) (6,481 ) Total $ 2,587 $ 5,397 Three Months Ended April 1, 2016 April 3, 2015 Depreciation and Amortization Laser Products $ 1,544 $ 1,582 Vision Technologies 3,100 2,258 Precision Motion 614 473 Unallocated Corporate and Shared Services 573 449 Total $ 5,831 $ 4,762

Basis of Presentation - Additio

Basis of Presentation - Additional information (Details)	3 Months Ended
	Apr. 01, 2016
Accounting Policies [Abstract]
Equity method investment ownership percentage on Laser Quantum	41.00%

Business Combinations - Additio

Business Combinations - Additional Information (Details) - Lincoln Laser Company - USD ($) $ in Millions	Nov. 09, 2015	Apr. 01, 2016
Business Acquisition [Line Items]
Total purchase price	$ 12.1
Working capital adjustments		$ 0.4

Discontinued Operations and D34

Discontinued Operations and Divestitures - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended
	Apr. 30, 2015	Jul. 31, 2014	Apr. 01, 2016
JK Lasers Business
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from sale of business, net of transaction costs	$ 29.6
Pre-tax gain (loss) on sale of business	$ 19.6
Scientific Lasers Business
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from sale of business, net of transaction costs		$ 6.5
Sale proceeds held in escrow		$ 1.5
Sale proceeds held in escrow, period			2016-01

Accumulated Other Comprehensi35

Accumulated Other Comprehensive Income (Loss) (Details) $ in Thousands	3 Months Ended
	Apr. 01, 2016USD ($)
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ (18,830)
Other comprehensive income (loss)	321
Amounts reclassified from other comprehensive income (loss)	193	[1]
Ending Balance	(18,316)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(9,698)
Other comprehensive income (loss)	65
Ending Balance	(9,633)
Pension liability
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(9,132)
Other comprehensive income (loss)	256
Amounts reclassified from other comprehensive income (loss)	193	[1]
Ending Balance	$ (8,683)
[1]	The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

Computation of Basic and Dilute

Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Numerators:
Income from continuing operations	$ 1,906	$ 3,446
Consolidated net income	$ 1,906	$ 3,446
Denominators:
Weighted average common shares outstanding—basic	34,657	34,506
Dilutive potential common shares	196	493
Weighted average common shares outstanding— diluted	34,853	34,999
Basic Earnings per Common Share:
From continuing operations	$ 0.05	$ 0.10
Basic earnings per share	0.05	0.10
Diluted Earnings per Common Share:
From continuing operations	0.05	0.10
Diluted earnings per share	$ 0.05	$ 0.10

Earnings per Share - Additional

Earnings per Share - Additional Information (Details) - USD ($)	3 Months Ended	27 Months Ended
	Apr. 01, 2016	Dec. 31, 2015	Oct. 31, 2013
Common Stock Repurchase Plan
Computation Of Earnings Per Share Line Items
Shares repurchased	0	172,000
Repurchase of common stock		$ 2,200,000
Shares repurchased, average cost per share		$ 12.48
Maximum
Computation Of Earnings Per Share Line Items
Outstanding common stock repurchase program authorized amount			$ 10,000,000

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Dec. 31, 2015USD ($)	Apr. 01, 2016USD ($)Installment
Business Acquisition Contingent Consideration [Line Items]
Future contingent consideration	$ 3,889	$ 988
Skyetek Inc.
Business Acquisition Contingent Consideration [Line Items]
Future contingent consideration	200	200
Lincoln Laser Company
Business Acquisition Contingent Consideration [Line Items]
Estimated fair value of contingent consideration	2,300	2,300
Applimotion Acquisition
Business Acquisition Contingent Consideration [Line Items]
Estimated fair value of contingent consideration		$ 1,000
Business combination, date of agreement		Feb. 19, 2015
Number of contingent consideration installments | Installment		2
Contingent consideration adjustment	$ 400

Fair Values of Financial Assets

Fair Values of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Assets
Cash equivalents	$ 3,607	$ 4,657
Liabilities
Contingent consideration	3,889	3,889
Fair Value, Inputs, Level 1
Assets
Cash equivalents	3,607	4,657
Fair Value, Inputs, Level 3
Liabilities
Contingent consideration	$ 3,889	$ 3,889

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Changes in the Fair Value of Level 3 Contingent Consideration (Details) - Fair Value, Inputs, Level 3 $ in Thousands	Apr. 01, 2016USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Balance at December 31, 2015	$ 3,889
Balance at April 1, 2016	$ 3,889

Goodwill and Intangible Asset41

Goodwill and Intangible Assets - Additional Information (Details)	3 Months Ended
	Apr. 03, 2015USD ($)
Goodwill And Intangible Assets [Line Items]
Impairment of goodwill and intangible assets	$ 0
Minimum
Goodwill And Intangible Assets [Line Items]
Reporting units in excess of carrying value	20.00%

Summary of Changes in Goodwill

Summary of Changes in Goodwill (Details) $ in Thousands	3 Months Ended
	Apr. 01, 2016USD ($)
Goodwill [Line Items]
Balance at beginning of the period	$ 103,456
Balance at end of the period	103,413
Lincoln Laser Company
Goodwill [Line Items]
Net working capital adjustment of Lincoln Laser acquisition	$ (43)

Goodwill By Reportable Segment

Goodwill By Reportable Segment (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill	$ 254,642	$ 254,685
Accumulated impairment of goodwill	(151,229)	(151,229)
Total	103,413	103,456
Laser Products
Goodwill [Line Items]
Goodwill	136,278	136,321
Accumulated impairment of goodwill	(102,461)	(102,461)
Total	33,817	33,860
Vision Technologies
Goodwill [Line Items]
Goodwill	84,401	84,401
Accumulated impairment of goodwill	(31,722)	(31,722)
Total	52,679	52,679
Precision Motion
Goodwill [Line Items]
Goodwill	33,963	33,963
Accumulated impairment of goodwill	(17,046)	(17,046)
Total	$ 16,917	$ 16,917

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 163,904	$ 165,858
Amortizable intangible assets, accumulated amortization	(113,963)	(112,616)
Amortizable intangible assets, net carrying amount	49,941	53,242
Non-amortizable intangible assets	13,027	13,027
Gross carrying amount	176,931	178,885
Net carrying amount	62,968	66,269
Patents and Acquired Technologies
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	80,977	82,821
Amortizable intangible assets, accumulated amortization	(65,636)	(66,297)
Amortizable intangible assets, net carrying amount	15,341	16,524
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	67,102	67,168
Amortizable intangible assets, accumulated amortization	(38,411)	(36,914)
Amortizable intangible assets, net carrying amount	28,691	30,254
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	2,644	2,644
Amortizable intangible assets, accumulated amortization	(2,602)	(2,589)
Amortizable intangible assets, net carrying amount	42	55
Non-compete Covenant
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	2,514	2,514
Amortizable intangible assets, accumulated amortization	(1,016)	(882)
Amortizable intangible assets, net carrying amount	1,498	1,632
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	10,667	10,711
Amortizable intangible assets, accumulated amortization	(6,298)	(5,934)
Amortizable intangible assets, net carrying amount	$ 4,369	$ 4,777

Amortization Expense of Intangi

Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense – cost of revenue	$ 1,184	$ 1,119
Amortization expense – operating expenses	2,108	1,889
Total amortization expense	$ 3,292	$ 3,008

Estimated Amortization Expense

Estimated Amortization Expense (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
2016 (remainder of year)	$ 8,517
2,017	10,419
2,018	8,329
2,019	6,057
2,020	3,895
Thereafter	12,724
Amortizable intangible assets, net carrying amount	49,941	$ 53,242
Cost of Revenue
Finite-Lived Intangible Assets [Line Items]
2016 (remainder of year)	2,909
2,017	3,542
2,018	2,044
2,019	1,751
2,020	1,494
Thereafter	3,601
Amortizable intangible assets, net carrying amount	15,341
Operating Expenses
Finite-Lived Intangible Assets [Line Items]
2016 (remainder of year)	5,608
2,017	6,877
2,018	6,285
2,019	4,306
2,020	2,401
Thereafter	9,123
Amortizable intangible assets, net carrying amount	$ 34,600

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 37,486	$ 38,511
Work-in-process	12,438	10,138
Finished goods	11,146	9,266
Demo and consigned inventory	694	1,651
Total inventories	$ 61,764	$ 59,566

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015	Apr. 03, 2015	Dec. 31, 2014
Other Liabilities Disclosure [Abstract]
Accrued compensation and benefits	$ 7,741	$ 7,357
Accrued warranty	3,248	3,335	$ 2,825	$ 3,044
Accrued restructuring	2,383	1,652
Accrued contingent considerations	2,901
Accrued professional services fees and other	8,001	8,838
Total	$ 24,274	$ 21,182

Accrued Warranty (Details)

Accrued Warranty (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Product Warranties Disclosures [Abstract]
Balance at beginning of the period	$ 3,335	$ 3,044
Provision charged to cost of revenue	310	429
Acquisition related warranty accrual		94
Use of provision	(393)	(342)
Reclassification to liabilities held for sale		(376)
Foreign currency exchange rate changes	(4)	(24)
Balance at end of period	$ 3,248	$ 2,825

Summary of Other Long Term Liab

Summary of Other Long Term Liabilities (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Other Liabilities Noncurrent [Abstract]
Capital lease obligations	$ 8,955	$ 9,173
Accrued pension liabilities	3,287	3,693
Accrued contingent considerations	988	3,889
Other	2,515	2,690
Total	$ 15,745	$ 19,445

Debt (Details)

Debt (Details) - USD ($) $ in Thousands	Apr. 01, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total current portion of long-term debt	$ 7,395	$ 7,385
Total long-term debt	86,763	88,426
Total Senior Credit Facilities	94,158	95,811
Term Loans
Debt Instrument [Line Items]
Current portion of long-term debt, Gross	7,500	7,500
Total current portion of long-term debt	7,500
Long-term debt, Gross	18,125	20,000
Term Loan And Revolving Credit Facility
Debt Instrument [Line Items]
Less: unamortized debt issuance costs	(105)	(115)
Less: unamortized debt issuance costs	(1,362)	(1,574)
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, Gross	$ 70,000	$ 70,000

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($)	3 Months Ended
	Apr. 01, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Current portion of long-term debt	$ 7,395,000	$ 7,385,000
Revolving credit facility maturity year	2017-12
Term Loans
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50,000,000
Debt instrument maturity period	5 years
Quarterly installments payable on term loan	$ 1,900,000
Current portion of long-term debt	7,500,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 175,000,000
Debt instrument maturity period	5 years

Share Based Compensation Expens

Share Based Compensation Expense Recorded In Income from Continuing Operations in Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 1,342	$ 1,553
Selling, general and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	1,243	1,484
Research and development and engineering
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	25	49
Cost of Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 74	64
Restructuring, acquisition and divestiture related costs
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense, adjustment		$ (44)

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($) shares in Thousands, $ in Thousands	Mar. 30, 2016	Apr. 01, 2016	Apr. 03, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense recognized		$ 1,342	$ 1,553
Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense recognized		$ 500	$ 500
Restricted Stock Units (RSUs) | 2010 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Total fair value of restricted stock vested		$ 4,000
Stock units, Granted		309
Performance Stock Units | 2010 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units, Granted	46	46
Vesting performance cycle		3 years
Stock Options | 2010 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Stock options, Granted	193	193
Stock options, Expiration Period		10 years
Fair value of stock options granted		$ 1,000

Restricted Stock Units Issued a

Restricted Stock Units Issued and Outstanding (Details) - 2010 Incentive Award Plan - Restricted Stock Units (RSUs) shares in Thousands	3 Months Ended
	Apr. 01, 2016$ / sharesshares
Restricted Stock Units
Unvested, Beginning Balance	619
Granted	309
Vested	(307)
Forfeited	(6)
Unvested, Ending Balance	615
Expected to vest at end of period	586
Weighted Average Grant Date Fair Value
Unvested, Beginning Balance | $ / shares	$ 12.32
Granted | $ / shares	13.20
Vested | $ / shares	11.96
Forfeited | $ / shares	11.05
Unvested, Ending Balance | $ / shares	$ 12.75

Share-Based Compensation - Perf

Share-Based Compensation - Performance Stock Units Issued and Outstanding (Details) - 2010 Incentive Award Plan - Performance Stock Units - $ / shares shares in Thousands	Mar. 30, 2016	Apr. 01, 2016
Performance Stock Units
Granted	46	46
Unvested, Ending Balance		46
Expected to vest at end of period		46
Weighted Average Grant Date Fair Value
Granted		$ 14.13
Unvested, Ending Balance		$ 14.13

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options Issued and Outstanding (Details) - 2010 Incentive Award Plan - Stock Options - $ / shares shares in Thousands	Mar. 30, 2016	Apr. 01, 2016
Stock Options
Granted	193	193
Outstanding, Ending Balance		193
Expected to vest at end of period		193
Weighted Average Exercise Price
Granted		$ 14.13
Outstanding, Ending Balance		$ 14.13

Share-Based Compensation - Esti

Share-Based Compensation - Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model (Details)	3 Months Ended
	Apr. 01, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expected option term in years	6 years	[1]
Expected volatility	33.80%	[2]
Risk-free interest rate	1.60%	[3]
Expected annual dividend yield	0.00%
[1]	The expected option term was calculated using the simplified method provided by Codification of Staff Accounting Bulletin Topic 14: “Share-Based Payment”.
[2]	The expected volatility was determined based on the historical volatility of the Company’s common stock over the expected option term.
[3]	Risk-free interest rate was based upon treasury instrument whose term was one year longer than the expected option term.

Share-Based Compensation - Es59

Share-Based Compensation - Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model (Parenthetical) (Details)	3 Months Ended
	Apr. 01, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Expected annual dividend yield	0.00%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Income Taxes [Line Items]
Effective tax rate on income from operations	14.50%	34.30%
Tax free cash dividend received	$ 2.3
Favorable impact on effective tax rate, percentage	18.90%
CANADA
Income Taxes [Line Items]
Statutory tax rate	27.00%

Schedule of Restructuring, Acqu

Schedule of Restructuring, Acquisition and Divestiture Related Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 2,712	$ 1,753
Acquisition and related charges	246	127
Divestiture related charges		557
Total acquisition and divestiture related charges	246	684
Total restructuring, acquisition and divestiture related costs	2,958	2,437
2016 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	2,500
2015 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges		1,370
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 212	$ 383

Restructuring, Acquisition an62

Restructuring, Acquisition and Divestiture Related Costs - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2016	Apr. 01, 2016	Apr. 03, 2015
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		$ 2,712	$ 1,753
Proceeds from the sale of property, plant and equipment		3,589	23
Facility Closing
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		$ 115
2016 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring plan		During the third quarter of 2015, the Company initiated the 2016 restructuring program, which includes consolidating certain of our manufacturing operations to optimize our facility footprint and better utilize resources, and reducing redundant costs due to productivity cost savings and business volume reductions. We anticipate completing the 2016 restructuring program during the second quarter of 2016. During the three months ended April 1, 2016, the Company incurred restructuring costs of $2.5 million related to the 2016 restructuring plan. Restructuring costs incurred during the three months ended April 1, 2016 of $0.5 million, $1.7 million, $0.1 million and $0.2 million related to the Laser Products, Vision Technologies, Precision Motion and Unallocated Corporate and Shared Services reportable segments, respectively. As of April 1, 2016, the Company incurred cumulative costs related to this restructuring plan totaling $5.6 million. The Company expects to incur additional restructuring charges of $1.0 million to $1.6 million related to the 2016 restructuring plan.
Restructuring Costs		$ 2,500
2016 Restructuring | Cumulative Restructuring Costs [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		5,600
2016 Restructuring | Minimum
Restructuring Cost And Reserve [Line Items]
Additional restructuring costs		1,000
2016 Restructuring | Maximum
Restructuring Cost And Reserve [Line Items]
Additional restructuring costs		1,600
2016 Restructuring | Laser Products
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		500
2016 Restructuring | Vision Technologies
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		1,700
2016 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		100
2016 Restructuring | Unallocated Corporate and Shared Services
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		$ 200
2015 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring plan		During the first quarter of 2015, the Company initiated a program to eliminate redundant costs, as a result of acquisition and divestiture activities, to better align our operations to our strategic growth plans, to further integrate our business lines, and as a consequence of our productivity initiatives. During the three months ended April 3, 2015, the Company incurred $1.3 million in severance costs related to the 2015 restructuring. Restructuring costs of $0.6 million, $0.4 million, $0.1 million and $0.3 million related to the Laser Products, Vision Technologies, Precision Motion and Unallocated Corporate and Shared Services reportable segments, respectively.
Restructuring Costs			1,370
Severance costs			1,300
2015 Restructuring | Laser Products
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			600
2015 Restructuring | Vision Technologies
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			400
2015 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			100
2015 Restructuring | Unallocated Corporate and Shared Services
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			300
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring plan		In November 2011, the Company announced a strategic initiative (“2011 restructuring”), which aimed to consolidate operations to reduce the Company’s cost structure and improve operational efficiency. As part of this initiative, the Company eliminated facilities through the consolidation of certain manufacturing, sales and distribution facilities and the exit of Semiconductor and Laser Systems businesses. The Company substantially completed the 2011 restructuring program by the end of 2013. In March 2016, the Company sold our previously exited Laser Systems facility located in Orlando, Florida for a net cash consideration of $3.6 million. Restructuring costs for the three months ended April 1, 2016 included facility costs of $0.2 million related to the Orlando, Florida facility. These costs were recorded in the Unallocated Corporate and Shared Services reportable segment.
Restructuring Costs		$ 212	$ 383
2011 Restructuring | Unallocated Corporate and Shared Services | Facility Closing
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		$ 212
2011 Restructuring | Orlando Facility
Restructuring Cost And Reserve [Line Items]
Proceeds from the sale of property, plant and equipment	$ 3,600

Summary of Accrual Activities b

Summary of Accrual Activities by Components Related to Company's Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	$ 1,882
Restructuring charges	2,712	$ 1,753
Cash payments	(1,330)
Non-cash write-offs and other adjustments	(604)
Accrued expense ending balance	2,660
Severance
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	1,358
Restructuring charges	1,585
Cash payments	(975)
Accrued expense ending balance	1,968
Facility Closing
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	406
Restructuring charges	115
Cash payments	(28)
Accrued expense ending balance	493
Depreciation
Restructuring Cost And Reserve [Line Items]
Restructuring charges	602
Non-cash write-offs and other adjustments	(602)
Other Restructuring Charges
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	118
Restructuring charges	410
Cash payments	(327)
Non-cash write-offs and other adjustments	(2)
Accrued expense ending balance	$ 199

Segment Information - Additiona

Segment Information - Additional Information (Details)	3 Months Ended
	Apr. 01, 2016Segment
Segment Reporting [Abstract]
Number of reportable segments	3

Revenue, Gross Profit and Gross

Revenue, Gross Profit and Gross Profit Margin by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Segment Reporting Information [Line Items]
Revenue	$ 90,316	$ 94,614
Gross Profit	$ 36,892	$ 40,006
Gross profit margin percentage	40.80%	42.30%
Laser Products
Segment Reporting Information [Line Items]
Revenue	$ 40,358	$ 44,955
Gross Profit	$ 17,997	$ 19,375
Gross profit margin percentage	44.60%	43.10%
Vision Technologies
Segment Reporting Information [Line Items]
Revenue	$ 28,862	$ 31,111
Gross Profit	$ 9,579	$ 12,513
Gross profit margin percentage	33.20%	40.20%
Precision Motion
Segment Reporting Information [Line Items]
Revenue	$ 21,096	$ 18,548
Gross Profit	$ 9,668	$ 8,465
Gross profit margin percentage	45.80%	45.60%
Unallocated Corporate and Shared Services
Segment Reporting Information [Line Items]
Gross Profit	$ (352)	$ (347)

Operating Income (Loss) from Co

Operating Income (Loss) from Continuing Operations by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Operating Income (Loss) from Continuing Operations
Operating Income (Loss) from Continuing Operations	$ 2,587	$ 5,397
Laser Products
Operating Income (Loss) from Continuing Operations
Operating Income (Loss) from Continuing Operations	6,856	8,395
Vision Technologies
Operating Income (Loss) from Continuing Operations
Operating Income (Loss) from Continuing Operations	(3,771)	(654)
Precision Motion
Operating Income (Loss) from Continuing Operations
Operating Income (Loss) from Continuing Operations	5,235	4,137
Unallocated Corporate and Shared Services
Operating Income (Loss) from Continuing Operations
Operating Income (Loss) from Continuing Operations	$ (5,733)	$ (6,481)

Depreciation and Amortization b

Depreciation and Amortization by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Depreciation and Amortization
Depreciation and amortization	$ 5,831	$ 4,762
Laser Products
Depreciation and Amortization
Depreciation and amortization	1,544	1,582
Vision Technologies
Depreciation and Amortization
Depreciation and amortization	3,100	2,258
Precision Motion
Depreciation and Amortization
Depreciation and amortization	614	473
Unallocated Corporate and Shared Services
Depreciation and Amortization
Depreciation and amortization	$ 573	$ 449