Novanta (NOVT) 10-K 6 Mar 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 21, 2017	Jul. 01, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Trading Symbol	NOVT
Entity Registrant Name	NOVANTA INC
Entity Central Index Key	1,076,930
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,459,387
Entity Public Float			$ 479,741,621

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 68,108	$ 59,959
Accounts receivable, net of allowance of $565 and $500, respectively	63,769	57,188
Inventories	59,745	59,566
Prepaid income taxes and income taxes receivable	2,058	2,510
Prepaid expenses and other current assets	5,570	5,989
Total current assets	199,250	185,212
Property, plant and equipment, net	35,421	40,550
Deferred tax assets	8,593	7,885
Other assets	12,502	12,673
Intangible assets, net	61,743	66,269
Goodwill	108,128	103,456
Total assets	425,637	416,045
Current Liabilities
Current portion of long-term debt	7,366	7,385
Accounts payable	32,213	24,401
Income taxes payable	3,969	3,985
Accrued expenses and other current liabilities	26,948	21,182
Total current liabilities	70,496	56,953
Long-term debt	70,554	88,426
Deferred tax liabilities	1,294	449
Income taxes payable	5,710	6,071
Other liabilities	18,713	19,445
Total liabilities	166,767	171,344
Commitments and Contingencies (Note 15)
Stockholders’ Equity:
Common shares, no par value; Authorized shares: unlimited; Issued and outstanding: 34,458 and 34,345, respectively	423,856	423,856
Additional paid-in capital	30,276	29,225
Accumulated deficit	(167,547)	(189,550)
Accumulated other comprehensive loss	(27,715)	(18,830)
Total Novanta Inc. stockholders’ equity	258,870	244,701
Total stockholders’ equity	258,870	244,701
Total liabilities and stockholders’ equity	$ 425,637	$ 416,045

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Statement Of Financial Position [Abstract]
Accounts receivable, allowance	$ 565	$ 500
Common shares, Authorized	Unlimited	Unlimited
Common shares, no par value	$ 0	$ 0
Common shares, Issued	34,458	34,345
Common shares, outstanding	34,458	34,345

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenue	$ 384,758	$ 373,598	$ 364,706
Cost of revenue	222,306	215,708	214,539
Gross profit	162,452	157,890	150,167
Operating expenses:
Research and development and engineering	32,002	31,043	28,954
Selling, general and administrative	81,691	82,049	84,380
Amortization of purchased intangible assets	8,251	7,611	10,262
Restructuring, acquisition and divestiture related costs	7,945	8,254	1,935
Impairment of goodwill and intangible assets			41,442
Total operating expenses	129,889	128,957	166,973
Operating income (loss) from continuing operations	32,563	28,933	(16,806)
Interest income (expense), net	(4,559)	(5,180)	(5,096)
Foreign exchange transaction gains (losses), net	2,317	(23)	1,281
Other income (expense), net	2,201	2,663	2,706
Gain on disposal of business		19,629
Income (loss) from continuing operations before income taxes	32,522	46,022	(17,915)
Income tax provision (benefit)	10,519	10,394	(1,006)
Income (loss) from continuing operations	22,003	35,628	(16,909)
Loss from discontinued operations, net of tax		(13)	(5,607)
Loss on disposal of discontinued operations, net of tax			(1,726)
Consolidated net income (loss)	22,003	35,615	(24,242)
Less: Net income attributable to noncontrolling interest			(10)
Net income (loss) attributable to Novanta Inc.	$ 22,003	$ 35,615	$ (24,252)
Earnings (loss) per common share from continuing operations:
Basic	$ 0.63	$ 1.03	$ (0.49)
Diluted	0.63	1.02	(0.49)
Loss per common share from discontinued operations:
Basic		0	(0.21)
Diluted		0	(0.21)
Earnings (loss) per common share attributable to Novanta Inc.:
Basic	0.63	1.03	(0.70)
Diluted	$ 0.63	$ 1.02	$ (0.70)
Weighted average common shares outstanding—basic	34,694	34,579	34,352
Weighted average common shares outstanding—diluted	34,914	34,827	34,352
Amounts attributable to Novanta Inc.:
Income (loss) from continuing operations	$ 22,003	$ 35,628	$ (16,909)
Loss from discontinued operations		(13)	(7,343)
Net income (loss) attributable to Novanta Inc.	$ 22,003	$ 35,615	$ (24,252)

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Consolidated net income (loss)		$ 22,003	$ 35,615	$ (24,242)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	[1]	(7,524)	(4,083)	(6,968)
Pension liability adjustments, net of tax	[2]	(1,361)	1,709	(3,146)
Total other comprehensive income (loss)		(8,885)	(2,374)	(10,114)
Total consolidated comprehensive income (loss)		13,118	33,241	(34,356)
Less: Comprehensive income attributable to noncontrolling interest				(10)
Comprehensive income (loss) attributable to Novanta Inc.		$ 13,118	$ 33,241	$ (34,366)
[1]	The tax effect on this component of comprehensive income was $36, $193 and $622 in 2016, 2015 and 2014, respectively.
[2]	The tax effect on this component of comprehensive income was ($462), $307 and ($906) in 2016, 2015 and 2014, respectively.

CONSOLIDATED STATEMENTS OF COM6

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Foreign currency translation adjustments - Tax effect on component of comprehensive income	$ 36	$ 193	$ 622
Pension liability adjustments, tax effect on the component of comprehensive income	$ (462)	$ 307	$ (906)

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Capital Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Deficit)	Noncontrolling Interest
Balance at Dec. 31, 2013	$ 242,403	$ 423,856	$ 25,383	$ (6,342)	$ (200,913)	$ 419
Balance (in shares) at Dec. 31, 2013		33,991
Consolidated net income (loss)	(24,242)				(24,252)	10
Common stock issued under stock plans (in shares)		362
Share-based compensation	4,659		4,659
Net settlement of vested stock awards	(1,666)		(1,666)
Net settlement of vested stock awards (in shares)		(134)
Tax benefit (shortfalls) of vested stock awards	214		214
Other comprehensive loss, net of tax	(10,114)			(10,114)
Balance at Dec. 31, 2014	211,254	$ 423,856	28,590	(16,456)	(225,165)	429
Balance (in shares) at Dec. 31, 2014		34,219
Consolidated net income (loss)	35,615				35,615
Common stock issued under stock plans (in shares)		398
Repurchase of common stock	(1,627)		(1,627)
Repurchase of common stock (in shares)		(122)
Share-based compensation	4,065		4,065
Net settlement of vested stock awards	(1,941)		(1,941)
Net settlement of vested stock awards (in shares)		(150)
Tax benefit (shortfalls) of vested stock awards	138		138
Other comprehensive loss, net of tax	(2,374)			(2,374)
Dissolution of minority interest	(429)					$ (429)
Balance at Dec. 31, 2015	244,701	$ 423,856	29,225	(18,830)	(189,550)
Balance (in shares) at Dec. 31, 2015		34,345
Consolidated net income (loss)	22,003				22,003
Common stock issued under stock plans	181		181
Common stock issued under stock plans (in shares)		351
Repurchase of common stock	(1,634)		(1,634)
Repurchase of common stock (in shares)		(109)
Share-based compensation	4,293		4,293
Net settlement of vested stock awards	(1,789)		(1,789)
Net settlement of vested stock awards (in shares)		(129)
Other comprehensive loss, net of tax	(8,885)			(8,885)
Balance at Dec. 31, 2016	$ 258,870	$ 423,856	$ 30,276	$ (27,715)	$ (167,547)
Balance (in shares) at Dec. 31, 2016		34,458

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Consolidated net income (loss)	$ 22,003	$ 35,615	$ (24,242)
Less: Loss from discontinued operations, net of tax		13	7,333
Income (loss) from continuing operations	22,003	35,628	(16,909)
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities of continuing operations:
Depreciation and amortization	20,357	19,114	23,797
Provision for inventory excess and obsolescence	3,091	1,934	832
Impairment of goodwill and intangible assets			41,442
Share-based compensation	4,293	4,387	4,329
Deferred income taxes	(1,766)	(1,692)	(6,736)
Earnings from equity-method investment	(2,191)	(2,657)	(2,700)
Dividend from equity-method investment	2,341
Gain on disposal of business		(19,629)
Gain on sale of fixed assets	(1,707)	1	19
Contingent consideration adjustments	1,267	430
Non-cash interest expense	882	935	1,379
Other non-cash items	986	1,407	1,567
Changes in assets and liabilities which provided (used) cash, excluding effects from businesses purchased or classified as held for sale:
Accounts receivable	(6,394)	(7,526)	3,526
Inventories	(2,917)	(3,338)	(991)
Prepaid expenses and other current assets	(1,729)	902	(527)
Prepaid income taxes and income taxes receivable	462	3,431	(206)
Accounts payable, income taxes payable, accrued expenses and other current liabilities	10,590	2,167	(4,698)
Other non-current assets and liabilities	(1,780)	(2,065)	(134)
Cash provided by operating activities of continuing operations	47,788	33,429	43,990
Cash used in operating activities of discontinued operations		(13)	(1,701)
Cash provided by operating activities	47,788	33,416	42,289
Cash flows from investing activities:
Purchases of property, plant and equipment	(8,462)	(5,552)	(5,415)
Acquisition of businesses, net of cash acquired and escrow recovery	(8,958)	(25,987)	(88,238)
Acquisition of intangible assets	(3,980)
Proceeds from the sale of business, net of transaction costs		29,570
Proceeds from the sale of property, plant and equipment	7,037	127	112
Cash used in investing activities of continuing operations	(14,363)	(1,842)	(93,541)
Cash provided by investing activities of discontinued operations	1,498	209	3,768
Cash used in investing activities	(12,865)	(1,633)	(89,773)
Cash flows from financing activities:
Borrowings under revolving credit facility		13,000	77,000
Repayments of long-term debt and revolving credit facility	(16,250)	(30,500)	(33,500)
Payments for debt issuance costs	(2,523)		(712)
Payments of withholding taxes from stock-based awards	(1,789)	(1,941)	(1,666)
Repurchase of common stock	(1,634)	(1,627)
Proceeds from the exercise of stock option	181
Other financing activities	(1,174)	(467)	(841)
Cash provided by (used in) financing activities of continuing operations	(23,189)	(21,535)	40,281
Cash provided by (used in) financing activities of discontinued operations	0	0	0
Cash provided by (used in) financing activities	(23,189)	(21,535)	40,281
Effect of exchange rates on cash and cash equivalents	(3,585)	(1,435)	(2,631)
Increase (decrease) in cash and cash equivalents	8,149	8,813	(9,834)
Cash and cash equivalents, beginning of year	59,959	51,146	60,980
Cash and cash equivalents, end of year	68,108	59,959	51,146
Supplemental disclosure of cash flow information:
Cash paid for interest	2,917	3,784	3,793
Cash paid for income taxes	14,058	10,688	6,087
Income tax refunds received	932	3,939	931
Supplemental disclosure of non-cash investing activity:
Accrual for capital expenditures	1,253	1,180	26
Supplemental disclosure of non-cash financing activity:
Assets acquired under capital lease obligation	$ 0	$ 0	$ 10,438

Organization and Presentation

Organization and Presentation	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Organization and Presentation	1. Organization and Presentation Novanta Inc. and its subsidiaries (collectively referred to as “Novanta”, 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. We combine deep expertise at the intersection of photonics and motion to solve complex technical challenges. This enables us to engineer core components and sub-systems that deliver extreme precision and performance, tailored to our customers’ demanding applications. We deliver highly engineered photonics, vision and precision motion solutions to customers around the world. Basis of Presentation These consolidated financial statements have been prepared by the Company in U.S. dollars and in accordance with U.S. generally accepted accounting principles, applied on a consistent basis. The consolidated financial statements include the accounts of Novanta Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated. As of December 31, 2016, the Company had a 41% ownership interest in Laser Quantum Limited (“Laser Quantum”), a privately held company located in the United Kingdom. As of December 31, 2016, the financial results of Laser Quantum were accounted for under the equity method of accounting. On January 10, 2017, the Company acquired approximately 35% of the shares of Laser Quantum. As a result of this transaction, the Company’s ownership position in Laser Quantum increased from approximately 41% to approximately 76%. Laser Quantum will be consolidated in the Company’s consolidated financial statements starting in January 2017.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies 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. Foreign Currency Translation The financial statements of the Company and its subsidiaries outside the United States have been translated into U.S. dollars. Assets and liabilities of foreign operations are translated from foreign currencies into U.S. dollars at the exchange rates in effect on the balance sheet date. Revenue and expenses are translated at the average exchange rate in effect for the period. Accordingly, gains and losses resulting from translating foreign currency financial statements are reported as cumulative translation adjustment, a separate component of other comprehensive income (loss) in stockholders’ equity. Foreign currency transaction gains and losses, primarily from transactions denominated in currencies other than the functional currency, are included in the accompanying consolidated statements of operations. Cash Equivalents Cash equivalents, primarily money market accounts, are highly liquid investments with original maturities of three months or less. These investments are carried at cost, which approximates fair value. Long-Term Investments At December 31, 2016 and 2015, the Company had a 41% equity investment in Laser Quantum, a privately held company located in the United Kingdom. During each of the periods presented, the Company used the equity method to account for the results of this entity as it did not have a controlling interest in the entity. The Company recognized investment income of $2.2 million, $2.7 million and $2.7 million during 2016, 2015 and 2014, respectively, which is included in other income (expense) in the accompanying consolidated statements of operations. The Company’s net investment in Laser Quantum was $8.5 million and $10.1 million at December 31, 2016 and 2015, respectively, and is included in other assets in the accompanying consolidated balance sheets. In March 2016, the Company received a cash dividend of $2.3 million from Laser Quantum. The summarized financial information for Laser Quantum is as follows (in thousands): Year Ended December 31, 2016 2015 2014 Revenue $ 23,526 $ 25,599 $ 23,013 Income from operations $ 5,537 $ 7,362 $ 7,434 Net income $ 5,389 $ 6,925 $ 6,627 December 31, 2016 2015 Total assets (1) $ 25,043 $ 30,159 Total liabilities $ 1,556 $ 2,552 (1) Total assets at December 31, 2016 and 2015 included cash and cash equivalents of $15.5 million and $21.0 million, respectively. Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts based on the Company’s best estimate of probable credit losses resulting from the inability of the Company’s customers to make required payments. The Company determines the allowance based on a variety of factors, including the age of amounts outstanding relative to their contractual due date, specific customer factors, and other known risks and economic trends. Charges related to the allowance for doubtful accounts are included as selling, general and administrative expenses and are recorded in the period that the outstanding receivables are determined to be uncollectible. Account balances are charged off against the allowance when the Company believes it is probable that the receivable will not be recovered. For the years ended December 31, 2016, 2015 and 2014, changes in the allowance for doubtful accounts were as follows (in thousands): 2016 2015 2014 Balance at beginning of year $ 500 $ 282 $ 575 Provision charged to selling, general and administrative expenses 135 285 30 Allowance resulting from acquisitions 15 5 52 Write-offs, net of recoveries of amounts previously reserved (82 ) (29 ) (352 ) Divestiture of JK Lasers — (30 ) — Exchange rate changes (3 ) (13 ) (23 ) Balance at end of year $ 565 $ 500 $ 282 Inventories Inventories, which include materials and conversion costs, are stated at the lower of cost or market, using the first-in, first-out method. Market is defined as replacement cost for raw materials and net realizable value for other inventories. Demo inventory is recorded at the lower of cost or its net realizable value. The Company periodically reviews quantities of inventories on hand and compares these amounts to the expected use of each product. The Company records a charge to cost of revenue for the amount required to reduce the carrying value of inventory to net realizable value. Costs associated with the procurement of inventories such as inbound freight charges, purchasing and receiving costs are capitalized in inventory on the consolidated balance sheets. Property, Plant and Equipment Property, plant and equipment are recorded at cost, adjusted for any impairment, less accumulated depreciation. The Company uses the straight-line method to calculate the depreciation of its fixed assets over their estimated useful lives. Estimated useful lives range from 3 to 30 years for buildings and building improvements and 3 to 10 years for machinery and equipment. Leasehold improvements are depreciated over the lesser of their useful lives or the lease terms, including any renewal period options that are reasonably assured of being exercised. Repairs and maintenance costs are expensed as incurred. Certain costs to develop software for internal use are capitalized when the criteria under Accounting Standards Codification (“ASC”) 350-40, “Internal-Use Software,” are met. Lease arrangements meeting the criteria of ASC 840-30, “Leases – Capital Leases,” are capitalized based on the present value of future minimum lease payments and depreciated over the term of the lease. In 2016, the Company sold its facilities in Chatsworth, California and Orlando, Florida and recognized a gain of $1.7 million as part of restructuring, acquisition and divestiture related costs. Goodwill, Intangibles and Long-Lived Assets Goodwill represents the excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities acquired in a business combination. Allocations of the purchase price are based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed are recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets are based on valuations using an income approach, with estimates and assumptions provided by management of the acquired companies and the Company. Goodwill and indefinite-lived intangibles are not amortized but are assessed for impairment at least annually to ensure their current fair values exceed their carrying values. The Company’s most significant intangible assets are patents and acquired technologies, customer relationships, trademarks and trade names. All definite-lived intangible assets are amortized over the periods in which their economic benefits are expected to be realized. The Company reviews the useful life assumptions, including the classification of certain intangible assets as “indefinite-lived”, on a periodic basis to determine if changes in circumstances warrant revisions to them. Costs associated with patent and intellectual property applications, renewals or extensions are expensed as incurred. The Company evaluates its goodwill, intangible assets and other long-lived assets for impairment at the reporting unit level which is generally at least one level below our reportable segments. Impairment Charges Impairment analyses of goodwill and indefinite-lived intangible assets are conducted in accordance with ASC 350, “Intangibles —Goodwill and Other”. This guidance specifies that goodwill and other intangible assets must be periodically tested for impairment. The Company tests its goodwill balances annually as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company utilizes a quantitative analysis to test goodwill for impairment. This two-step approach requires a comparison of the carrying value of each of the Company’s reporting units to the fair value of these reporting units. The fair value of a reporting unit is primarily based on a discounted cash flow (“DCF”) method with a weighted average cost of capital. If the carrying value of a reporting unit exceeds its fair value, the Company calculates the implied fair value of the reporting unit’s goodwill and compares it to the carrying value. If the carrying value of the goodwill exceeds its implied fair value, an impairment charge is recorded for the difference. The Company assesses indefinite-lived intangible assets for impairment on an annual basis as of the beginning of the second quarter, and more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company will also reassess the continuing classification of these indefinite-lived intangible assets as indefinite-lived when circumstances change such that the useful life may no longer be indefinite. The fair values of the Company’s indefinite-lived intangible assets are determined using the relief from royalty method, based on forecasted revenues. If the fair value of an indefinite-lived intangible asset is less than its carrying value, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset. The carrying amounts of definite-lived long-lived assets are reviewed for impairment whenever changes in events or circumstances indicate that their carrying values may not be recoverable. The recoverability of the carrying value is generally determined by comparison of the asset group’s carrying value to its undiscounted future cash flows. When this test indicates the potential for impairment, a fair value assessment is performed. Once an impairment is determined and measured, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset. Revenue Recognition The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, price is fixed or determinable, and collection of the resulting receivable is reasonably assured. Revenue recognition requires judgment and estimates, which may affect the amount and timing of revenue recognized in any given period. The Company’s revenue transactions are comprised of both single-element and multiple-element transactions. Multiple-element transactions may include two or more products, and occasionally non-standard/extended warranties or preventative maintenance plans. For multiple-element transactions, revenue is generally recognized upon shipment, using the relative selling price method in accordance with ASC 605-25, “Revenue – Multiple-Element Arrangements”. Single-element transactions are typically recognized upon shipment at their contractually stated prices. The Company generally provides warranties for its products. The standard warranty period is typically 12 months to 24 months for the Photonics and Precision Motion segments and 12 months to 36 months for the Vision segment. The standard warranty period for product sales is accounted for under the provisions of ASC 450 “Contingencies,” as the Company has the ability to ascertain the likelihood of the liability, and can estimate the amount of the liability. A provision for the estimated cost related to warranty is recorded to cost of revenue at the time revenue is recognized. The Company’s estimate of costs to service the warranty obligations is based on historical experience and expectations of future conditions. To the extent that the Company experiences warranty claims or costs associated with servicing those claims that differ from the original estimates, revisions to the estimated warranty liability are recorded at that time. The Company occasionally sells optional non-standard/extended warranty services and preventative maintenance contracts to customers. The Company accounts for these agreements in accordance with provisions of ASC 605-20-25-3, “Separately Priced Extended Warranty and Product Maintenance Contracts,” under which it recognizes the separately priced extended warranty and preventative maintenance fees ratably over the associated period. At the request of its customers, may perform professional services, generally for the maintenance and repair of products previously sold to those customers. These services are usually in the form of time and materials based contracts which are short in duration. Revenue for time and materials services is recorded at the completion of services requested under a customer’s purchase order. Research and Development and Engineering Costs Research and development and engineering (“R&D”) expenses are primarily comprised of employee related expenses and cost of materials for R&D projects. These costs are expensed as incurred. Share-Based Compensation The Company records the expense associated with share-based compensation awards to employees and directors based on the fair value of awards as of the grant date. For stock-based compensation awards that vest over time based on employment, the associated expenses are recognized in the consolidated statements of operations ratably over the vesting period of the award, net of estimated forfeitures. For performance-based restricted stock units, stock-based compensation expenses are recognized ratably over the vesting period when it is probable that the performance targets are expected to be achieved based on management’s projections. Management’s projections are revised, if necessary, in subsequent periods when underlying factors change the evaluation of the probability of achieving the performance targets. Accordingly, share-based compensation expense associated with performance-based restricted stock units may differ significantly from period to period based on changes to the probability of achieving performance targets. Shipping & Handling Costs Shipping and handling costs are recorded in cost of revenue. Advertising Costs Advertising costs are expensed to selling, general and administrative expenses as incurred and were not material for 2016, 2015 and 2014. Restructuring, Acquisition and Divestiture Related Costs The Company accounted for its restructuring activities in accordance with the provisions of ASC 420, “Exit or Disposal Cost Obligations.” The Company makes assumptions related to the amounts of employee severance benefits and related costs, the time period over which facilities will remain vacant, useful lives and residual value of long-lived assets, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation is recognized. These estimates are reviewed and revised as facts and circumstances dictate. Acquisition related costs incurred to effect a business combination, including finders’ fees, legal, valuation and other professional or consulting fees, are expensed as incurred. Acquisition related costs also include expenses recognized under earn-out agreements in connection with acquisitions. Expenses associated with divestiture activities, including legal and professional fees directly related to the completion of a business divestiture, are expensed as incurred. Accounting for Income Taxes The asset and liability method is used to account for income taxes. Under the asset and liability method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to temporary differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. This method also requires the recognition of future tax benefits, such as net operating loss carryforwards, to the extent that it is more likely than not that such benefits will be realized. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled. A valuation allowance is established to reduce the deferred tax assets if it is more likely than not that some or all of the related tax benefits will not be realized in the future and is reassessed periodically to determine whether it is more likely than not that the tax benefits will be realized in the future and that such valuation should be released. The majority of the Company’s business activities are conducted through its subsidiaries outside of Canada. Earnings from these subsidiaries are generally indefinitely reinvested in the local businesses. Further, local laws and regulations may also restrict certain subsidiaries from paying dividends to their parents. As such, the Company generally does not accrue income taxes for the repatriation of such earnings in accordance with ASC 740, “Income Taxes.” To the extent that there are excess accumulated earnings that the Company intends to repatriate from any such subsidiaries, the Company recognizes deferred tax liabilities on such foreign earnings. The Company assesses its income tax positions and records tax benefits for all years subject to examination based on the evaluation of the facts, circumstances, and information available at each reporting date. For those tax positions with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information, the Company records a tax benefit. For those income tax positions that are not likely to be sustained, no tax benefit is recognized in the consolidated financial statements. The Company recognizes interest and penalties related to uncertain tax positions as part of the provision for income taxes. Recent Accounting Pronouncements Goodwill Impairment In January 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-04, “Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” which simplifies the accounting for goodwill impairment. The amendment in ASU 2017-04 removes Step-two of the goodwill impairment test, which requires a hypothetical purchase price allocation. ASU 2017-04 will become effective prospectively for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Business Combinations In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” which provides further clarification of the definition of a business with the objective to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets versus businesses. The amendments in ASU 2017-01 provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen is expected to reduce the number of transactions that need to be further evaluated. If the screen is not met, the amendments in ASU 2017-01 (i) require that to be considered a business, a set of assets and liabilities acquired must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output; and (ii) remove the evaluation of whether a market participant could replace missing elements. ASU 2017-01 will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Early adoption is permitted for transactions for which the acquisition date occurs before the issuance date of ASU 2017-01, only when the transaction has not been reported in financial statements that have been issued or made available for issuance. ASU 2017-01 should be applied using a prospective transition method for each period presented. The Company early adopted this pronouncement for a transaction that occurred in December 2016. Statement of Cash Flows Classification of Certain Cash Receipts and Cash Payments In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments,” which provides further clarification on eight cash flow classification issues. The standard further clarifies the classification of the following: (i) debt prepayment or debt extinguishment costs; (ii) settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; (iii) contingent consideration payments made after a business combination; (iv) proceeds from the settlement of insurance claims; (v) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; (vi) distributions received from equity method investees; (vii) beneficial interests in securitization transactions; and (viii) separately identifiable cash flows and application of the predominance principle. ASU 2016-15 will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. ASU 2016-15 should be applied using a retrospective transition method for each period presented. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Share-Based Compensation In March 2016, the FASB issued 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 income tax effects resulting from the settlement of stock-based awards as income tax provision or benefit in the income statement in the reporting period in which they occur. In addition, ASU 2016-09 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. ASU 2016-09 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, ASU 2016-09 allows companies to make an accounting policy election to either estimate the number of awards that are expected to vest, consistent with existing 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 adopted ASU 2016-09 during the second quarter of 2016, which required no retrospective adjustments to the consolidated financial statements. The adoption of ASU 2016-09 had an impact of less than $0.1 million on income from continuing operation on the Company’s consolidated statements of operations for the year ended December 31, 2016. The adoption of ASU 2016-09 had no impact on the prior year 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, with early adoption permitted. The Company adopted this pronouncement in the fourth quarter of 2016. The adoption of ASU 2014-15 had no impact on our 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 and plans to adopt the standard beginning in the first quarter of 2018.

Business Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2016
Business Combinations [Abstract]
Business Combinations	3. Business Combinations 2016 Acquisitions Reach On May 24, 2016, the Company acquired 100% of the outstanding stock of Reach Technology Inc. (“Reach”), a Fremont, California-based provider of embedded touch screen technology solutions for OEMs in the medical and advanced industrial markets, for a total purchase price of $9.4 million, net of working capital adjustments. The Company expects that the addition of Reach will enable the Company to enhance its value proposition with medical OEM customers by adding Reach’s high-performance touch screen solutions to its product offerings. The final purchase price allocation is as follows (in thousands): Amount Cash $ 238 Accounts receivable 991 Inventory 1,611 Prepaid expenses and other current assets 12 Intangible assets 3,953 Goodwill 4,715 Total assets acquired 11,520 Accounts payable 280 Other liabilities 148 Deferred tax liabilities 1,474 Total liabilities assumed 1,902 Total assets acquired, net of liabilities assumed 9,618 Less: cash acquired 238 Total purchase price, net of cash acquired $ 9,380 The fair value of intangible assets is comprised of the following (dollar amounts in thousands): Weighted Average Estimated Fair Amortization Value Period Customer relationships $ 2,770 15 years Developed technology 500 7 years Trademarks and trade names 258 10 years Backlog 425 1 year Total $ 3,953 The purchase price allocation resulted in $4.7 million of goodwill and $4.0 million of identifiable intangible assets, none of which is expected to be deductible for tax purposes. Intangible assets are being amortized over their weighted average useful lives primarily based upon the pattern in which anticipated economic benefits from such assets are expected to be realized. The goodwill recorded represents the anticipated incremental value of future cash flow potential attributable to: (i) Reach’s ability to grow their business with existing and new customers, including leveraging the Company’s customer base, and (ii) cost improvements due to scale and more efficient operations. The operating results of Reach were included in the Company’s results of operations beginning on May 24, 2016. Reach contributed revenues of $5.6 million and a loss from continuing operations before income taxes of $0.6 million for the year ended December 31, 2016. Operating loss from continuing operations before income taxes for the year ended December 31, 2016 included transition costs of $1.2 million recognized under earn-out agreements. The pro forma financial information reflecting the operating results of Reach, as if it had been acquired as of January 1, 2015, would not differ materially from the operating results of the Company as reported for the year ended December 31, 2015. Reach is included in the Company’s Vision reportable segment. 2015 Acquisitions Skyetek On December 18, 2015, the Company acquired all assets and certain liabilities of Skyetek Inc. (“Skyetek”), a Denver, Colorado-based provider of embedded and standalone radio frequency identification (“RFID”) solutions for medical OEMs, for a total purchase price of $2.8 million, net of working capital adjustments. The purchase price includes $2.6 million in cash paid for the acquisition and $0.2 million in estimated fair value of future contingent consideration payable upon the achievement of certain sales order commitment targets from October 2015 through June 2017. Lincoln Laser 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. This total purchase price includes $9.8 million in cash paid for the acquisition and $2.3 million in estimated fair value of future contingent consideration payable upon the achievement of certain revenue targets for fiscal year 2016. The undiscounted range of the contingent consideration under the purchase and sale agreement was zero to $6.0 million. The actual contingent consideration payment was $1.4 million, which was paid during the first quarter of 2017. Lincoln Laser specializes in ultrafast scanning solutions, leveraging their expertise in polygon scanner design and electro-optic subsystems. The acquisition creates an expanded range of highly competitive beam delivery technologies. Applimotion On February 19, 2015, the Company acquired 100% of the outstanding stock of Applimotion Inc. (“Applimotion”), a Loomis, California based provider of advanced precision motor and motion control technology to OEM customers in the medical and advanced industrial markets, for a total purchase price of $14.0 million, net of working capital adjustments. This total purchase price includes $13.0 million in cash paid for the acquisition and $1.0 million in estimated fair value of future contingent considerations payable upon the achievement of certain revenue targets for the fiscal years 2015 to 2017. The undiscounted range of contingent considerations is zero to $4.0 million. Applimotion specializes in motor applications that require highly precise and dynamic motion control. The acquisition enhances our strategic position in precision motion control by enabling us to offer a broader range of motion control technologies and integrated solutions. The final purchase price for Skyetek, Lincoln Laser and Applimotion was allocated as follows (in thousands): Amount Cash $ 331 Accounts receivable 3,166 Inventory 3,544 Prepaid expenses and other current assets 148 Property and equipment 3,220 Intangible assets 11,370 Goodwill 12,668 Other assets 10 Total assets acquired 34,457 Accounts payable 1,681 Other liabilities 1,197 Deferred tax liabilities 2,308 Total liabilities assumed 5,186 Total assets acquired, net of liabilities assumed 29,271 Less: cash acquired 331 Total purchase price, net of cash acquired 28,940 Less: contingent consideration 3,459 Net cash used for acquisition of businesses $ 25,481 The fair value of intangible assets for Skyetek, Lincoln Laser and Applimotion is comprised of the following (dollar amounts in thousands): Weighted Average Estimated Fair Amortization Value Period Customer relationships $ 4,266 12 years Developed technology 4,993 10 years Trademarks and trade names 593 9 years Non-compete covenant 684 4 years Backlog 834 1 year Total $ 11,370 The purchase price allocation resulted in $12.7 million of goodwill and $11.4 million of identifiable intangible assets, $10.3 million of which is expected to be deductible for tax purposes. Intangible assets are being amortized over their weighted average useful lives primarily based upon the pattern in which anticipated economic benefits from such assets are expected to be realized. The goodwill recorded represents the anticipated incremental value of future cash flow potential attributable to: (i) the ability to develop and market new products and technologies; (ii) the ability to develop relationships with new customers; and (iii) expected sales synergies from cross-selling current and future product offerings of Skyetek, Lincoln Laser, Applimotion and the Company to OEM customers. The results of the SkyeTek, Lincoln Laser and Applimotion acquisitions were included in the Company’s results of operations beginning on the respective acquisition dates. The pro forma financial information reflecting the operating results of Skyetek, Lincoln Laser and Applimotion as if they had been acquired on January 1, 2014 is not presented herein as it would not differ materially from the operating results of the Company as reported for 2014. Skyetek, Lincoln Laser and Applimotion are included in the Company’s Vision, Photonics and Precision Motion reportable segments, respectively . 2014 Acquisitions JADAK On March 14, 2014, the Company acquired 100% of the outstanding equity interests of JADAK, LLC, JADAK Technologies, Inc., and Advanced Data Capture Corporation (collectively, “JADAK”), a North Syracuse, New York-based provider of optical data collection and machine vision technologies to OEM medical device manufacturers, for $93.7 million in cash, net of working capital adjustments. The addition of JADAK has enabled the Company to offer a broader range of highly engineered enabling technologies to leading medical equipment manufacturers. The final purchase price allocation is as follows (in thousands): Amount Cash $ 1,140 Accounts receivable 7,907 Inventory 6,865 Property and equipment 904 Intangible assets 40,250 Goodwill 44,584 Other assets 2,064 Total assets acquired 103,714 Accounts payable 3,057 Other liabilities 2,380 Deferred tax liabilities 3,481 Total liabilities assumed 8,918 Total assets acquired and liabilities assumed 94,796 Less: cash acquired 1,140 Total purchase price, net of cash acquired $ 93,656 The fair value of JADAK intangible assets is comprised of the following (in thousands): Weighted Average Estimated Fair Amortization Value Period Customer relationships $ 23,570 20 years Developed technology 10,910 10 years Trademarks and trade names 2,130 10 years Backlog 1,810 1 year Non-compete covenant 1,830 5 years Total $ 40,250 The purchase price allocation resulted in $44.6 million of goodwill and $40.3 million of identifiable intangible assets, $61.8 million of which is expected to be deductible for tax purposes. Intangible assets are being amortized over their weighted average useful lives primarily based upon the pattern in which economic benefits related to such assets are expected to be realized. The amount of goodwill recorded represents the anticipated incremental value of future cash flow potential attributable to: (i) JADAK’s ability to develop and market new products and technologies; (ii) JADAK’s ability to develop relationships with new customers; and (iii) expected sales synergies from cross-selling current and future product offerings of both JADAK and the Company to OEM customers. Acquisition Costs The Company recognized acquisition costs of $0.2 million, $0.9 million and $0.7 million in the years ended December 31, 2016, 2015 and 2014, respectively, related to the acquisitions of Reach, Skyetek, Lincoln Laser, Applimotion and JADAK. These amounts were included in restructuring, acquisition and divestiture related costs in the consolidated statements of operations.

Discontinued Operations and Div

Discontinued Operations and Divestitures	12 Months Ended
	Dec. 31, 2016
Discontinued Operations And Disposal Groups [Abstract]
Discontinued Operations and Divestitures	4. Discontinued Operations and Divestitures Divestitures In April 2015, the Company completed the sale of certain assets and liabilities of the JK Lasers business, previously included in the Photonics reportable segment, for approximately $29.6 million in cash, net of final working capital adjustments and transactions 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 does not qualify for discontinued operations accounting treatment. Discontinued Operations In June 2015, the Company finalized an agreement to divest its 50% owned joint venture, the India JV, and recorded a pre-tax loss of less than $0.1 million in operating loss from discontinued operations, net of tax in the consolidated statement of operations during the year ended December 31, 2015. The India JV was reported as discontinued operations in the Company’s consolidated financial statements because it was part of the Scientific Lasers business that the Company divested in July 2014. All assets, liabilities, accumulated other comprehensive income and non-controlling interest of the India JV were derecognized as of the date of the agreement. In July 2014, the Company completed the sale of certain assets and liabilities of the Scientific Lasers business, operating under the Continuum and Quantronix brand names, for approximately $6.5 million, net of working capital adjustments, and recognized a $1.7 million loss, net of tax, in the consolidated statement of operations during the year ended December 31, 2014. The Company began accounting for the Scientific Lasers business, which was previously included in the Photonics reportable segment, as discontinued operations in the first quarter of 2014. 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 consolidated 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. The following table presents the operating results which are reported as discontinued operations in the Company’s consolidated statements of operations (in thousands): Year Ended December 31, 2015 2014 Revenue from discontinued operations $ — $ 10,514 Loss from discontinued operations, before income tax $ (13 ) $ (8,059 ) Loss from discontinued operations, net of tax $ (13 ) $ (5,607 ) Loss on disposal of discontinued operations, net of tax $ — $ (1,726 ) The loss from discontinued operations for the year ended December 31, 2014 included a $3.0 million fair value write-down of the Scientific Lasers business to its fair value less costs to sell and a $0.5 million fair value write-down of the India JV.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	5. Accumulated Other Comprehensive Income (Loss) Comprehensive income (loss) is defined as net income or loss and other changes in stockholders’ equity that do not represent transactions with stockholders or in the Company’s stock. Changes in accumulated other comprehensive income (loss) is as follows (in thousands): Total accumulated other Cumulative comprehensive translation Pension income (loss) adjustment liability Balance at December 31, 2013 $ (6,342 ) $ 1,353 $ (7,695 ) Other comprehensive income (10,488 ) (6,968 ) (3,520 ) Amounts reclassified from other comprehensive income (loss) (1) 374 — 374 Balance at December 31, 2014 $ (16,456 ) $ (5,615 ) $ (10,841 ) Other comprehensive loss (3,249 ) (4,083 ) 834 Amounts reclassified from other comprehensive income (loss) (1) 875 — 875 Balance at December 31, 2015 $ (18,830 ) $ (9,698 ) $ (9,132 ) Other comprehensive income (9,611 ) (7,524 ) (2,087 ) Amounts reclassified from other comprehensive income (loss) (1) 726 — 726 Balance at December 31, 2016 $ (27,715 ) $ (17,222 ) $ (10,493 ) (1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

Goodwill, Intangible Assets and

Goodwill, Intangible Assets and Impairment Charges	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, Intangible Assets and Impairment Charges	6. Goodwill, Intangible Assets and Impairment Charges Goodwill The following table summarizes changes in goodwill during the year ended December 31, 2016 (in thousands): December 31, 2016 Balance at beginning of year $ 103,456 Net working capital adjustment of Lincoln Laser acquisition (43 ) Goodwill acquired from Reach acquisition 4,715 Balance at end of year $ 108,128 Goodwill acquired from the Reach acquisition is reflected in the Vision segment. Goodwill by reportable segment as of December 31, 2016 is as follows (in thousands): Reportable Segment Photonics Vision Precision Motion Total Goodwill $ 136,278 $ 89,116 $ 33,963 $ 259,357 Accumulated impairment of goodwill (102,461 ) (31,722 ) (17,046 ) (151,229 ) Total $ 33,817 $ 57,394 $ 16,917 $ 108,128 Goodwill by reportable segment as of December 31, 2015 is as follows (in thousands): Reportable Segment Photonics Vision 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 December 31, 2016 and 2015, respectively, are summarized as follows (dollar amounts in thousands): December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Life (Years) Amortizable intangible assets: Patents and acquired technologies $ 84,742 $ (67,902 ) $ 16,840 7.6 Customer relationships 69,554 (42,934 ) 26,620 12.9 Customer backlog 622 (540 ) 82 0.9 Non-compete covenant 2,514 (1,419 ) 1,095 2.0 Trademarks and trade names 10,709 (6,630 ) 4,079 8.3 Amortizable intangible assets 168,141 (119,425 ) 48,716 10.2 Non-amortizable intangible assets: Trade names 13,027 — 13,027 Total $ 181,168 $ (119,425 ) $ 61,743 December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Life (Years) Amortizable intangible assets: Patents and acquired technologies $ 82,821 $ (66,297 ) $ 16,524 7.7 Customer relationships 67,168 (36,914 ) 30,254 13.6 Customer backlog 2,644 (2,589 ) 55 1.0 Non-compete covenant 2,514 (882 ) 1,632 3.2 Trademarks and trade names 10,711 (5,934 ) 4,777 9.1 Amortizable intangible assets 165,858 (112,616 ) 53,242 11.0 Non-amortizable intangible assets: Trade names 13,027 — 13,027 Total $ 178,885 $ (112,616 ) $ 66,269 Amortizable intangible assets as of December 31, 2016 include intangible assets recognized in conjunction with the acquisition of certain video processing and video management technologies used in medical visualization solutions in December 2016. The fair value of intangible assets acquired is comprised of the following (dollar amounts in thousands): Weighted Average Estimated Fair Amortization Value Period Developed technology $ 3,980 10 years Total $ 3,980 All definite-lived intangible assets are amortized either on a straight-line basis or an economic benefit basis over their remaining estimated 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): Year Ended December 31, 2016 2015 2014 Amortization expense – cost of revenue $ 4,164 $ 4,712 $ 6,143 Amortization expense – operating expenses 8,251 7,611 10,262 Total amortization expense $ 12,415 $ 12,323 $ 16,405 Estimated future amortization expense for each of the five succeeding years and thereafter is as follows (in thousands): Year Ending December 31, Cost of Revenue Operating Expenses Total 2017 $ 3,658 $ 7,384 $ 11,042 2018 2,274 6,713 8,987 2019 2,083 4,691 6,774 2020 1,931 2,718 4,649 2021 1,767 2,290 4,057 Thereafter 5,127 8,080 13,207 Total $ 16,840 $ 31,876 $ 48,716 Impairment Charges The most recent annual goodwill and indefinite-lived intangible asset impairment test was performed as of the beginning of the second quarter of 2016, noting no impairment. Implied fair values of all reporting units exceeded their carrying values by at least 20%. The Company did not have any goodwill or indefinite-lived intangible asset impairment charges during 2015 or 2016. During the fourth quarter of 2014, the Company performed an interim impairment review of the goodwill and intangible assets related to the NDS reporting unit. First, the Company performed a long-lived asset recoverability test in accordance with ASC 360-10-35-15, “Impairment or Disposal of Long-Lived Assets,” on the lowest level of identifiable cash flows, which was determined to be the NDS business. The recoverability test compared the carrying value of the NDS business to the undiscounted cash flows. As a result of this recoverability test, the Company determined that the assets were not recoverable. The Company then determined the fair value of the NDS business using a discounted cash flow methodology, which resulted in a $21.9 million intangible assets impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Vision segment. Subsequent to impairing the NDS business’s long-lived assets, step one of the goodwill impairment analysis was performed. As the carrying value of the NDS reporting unit exceeded its implied fair value, the Company performed the second step of the goodwill impairment test, comparing the implied fair value of the reporting unit’s goodwill with its carrying value to measure the impairment loss. The Company recorded a $19.6 million goodwill impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Vision segment.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	7. Fair Value Measurements ASC 820, “Fair Value Measurement,” 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. Cash equivalents 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 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. 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. Subsequent changes in the estimated fair value of this contingent liability will be recorded in the consolidated statement of operations in restructuring, acquisition and divestiture related costs until the liability is fully settled. There have been no changes to the fair value of the contingent consideration since the acquisition date. On November 11, 2015, the Company acquired Lincoln Laser. 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. The estimated fair value of the contingent consideration 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. Subsequent changes in the estimated fair value of this contingent liability will be recorded in the consolidated statement of operations in restructuring, acquisition and divestiture related costs until the liability is fully settled. Based on the actual operating results for fiscal year 2016, the fair value of the contingent consideration for Lincoln Laser was $1.4 million as of December 31, 2016. On February 19, 2015, the Company acquired Applimotion. Under the purchase and sale agreement for the Applimotion acquisition, 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 the contingent consideration 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. Subsequent changes in the estimated fair value of this contingent liability will be recorded in the consolidated statement of operations in restructuring, acquisition and divestiture related costs until the liability is fully settled. Under the Monte Carlo valuation method, the fair value of the contingent consideration for Applimotion was $3.6 million as of December 31, 2016. The following table summarizes the fair values of our assets and liabilities measured at fair value on a recurring basis as of December 31, 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 $ 9,569 $ 9,569 $ — $ — Liabilities Contingent consideration - Current $ 2,775 $ — $ — $ 2,775 Contingent consideration - Long-term 2,381 — — 2,381 $ 5,156 $ — $ — $ 5,156 The following table summarizes the fair values of our assets and liabilities measured at fair value on a recurring basis 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 - Long-term $ 3,889 $ — $ — $ 3,889 Changes in the fair value of our Level 3 contingent consideration for the years ended December 31, 2016 and 2015 were as follows (in thousands): Contingent Consideration Balance at December 31, 2014 $ — Acquisition of Applimotion 965 Fair value adjustment of Applimotion 430 Acquisition of Lincoln Laser 2,344 Acquisition of Skyetek 150 Balance at December 31, 2015 $ 3,889 Fair value adjustment of Applimotion 2,178 Fair value adjustment of Lincoln Laser (911 ) Balance at December 31, 2016 $ 5,156 The following table provides quantitative information associated with the fair value measurement of the Company’s Level 3 liabilities: Liability December 31, 2016 Fair Value (in thousands) Valuation Technique Unobservable Inputs Percentage Applied Contingent consideration (Applimotion) (1) $3,573 Monte Carlo simulation Historical and projected revenues for fiscal years 2015 to 2017 Revenue volatility Cost of debt WACC N/A 41.3% 3.49% 11.0% Contingent consideration (Lincoln Laser) (2) $1,433 N/A Historical revenues 100% (1) Based on Applimotion’s fiscal 2015 and 2016 revenue results, the Company will pay $1.2 million contingent consideration in the first quarter of 2017. (2) The Company will pay $1.4 million as the final Lincoln Laser contingent consideration payment in the first quarter of 2017. As of December 31, 2016, the significant unobservable inputs used in the Monte Carlo simulation to fair value the Applimotion contingent consideration included forecasted revenue, revenue volatility and discount rate. Increases or decreases in the inputs would result in a higher or lower fair value measurement. Except for the assets and liabilities acquired from the Applimotion, Lincoln Laser and Skyetek acquisitions, as disclosed in Note 3, there were no assets and liabilities that were measured at fair value on a non-recurring basis during 2016. See Note 10 for discussion of the estimated fair value of the Company’s outstanding debt and Note 12 for discussion of the estimated fair value of the Company’s pension plan assets.

Earnings (Loss) per Common Shar

Earnings (Loss) per Common Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Earnings (Loss) per Common Share	8. Earnings (Loss) per Common Share Basic earnings (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the year. For diluted earnings (loss) per common share, the denominator also includes the dilutive effect of outstanding restricted stock units 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 years 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 (loss) per share (in thousands, except per share amounts): Year Ended December 31, 2016 2015 2014 Numerators: Income (loss) from continuing operations $ 22,003 $ 35,628 $ (16,909 ) Consolidated loss from discontinued operations — (13 ) (7,333 ) Less: income attributable to noncontrolling interest — — (10 ) Loss from discontinued operations attributable to Novanta Inc. — (13 ) (7,343 ) Net income (loss) attributable to Novanta Inc. $ 22,003 $ 35,615 $ (24,252 ) Denominators: Weighted average common shares outstanding— basic 34,694 34,579 34,352 Dilutive potential common shares 220 248 — Weighted average common shares outstanding— diluted 34,914 34,827 34,352 Antidilutive common shares excluded from above 85 — 439 Basic Earnings (Loss) per Common Share: From continuing operations $ 0.63 $ 1.03 $ (0.49 ) From discontinued operations $ — $ (0.00 ) $ (0.21 ) Basic earnings (loss) per share attributable to Novanta Inc. $ 0.63 $ 1.03 $ (0.70 ) Diluted Earnings (Loss) per Common Share: From continuing operations $ 0.63 $ 1.02 $ (0.49 ) From discontinued operations $ — $ (0.00 ) $ (0.21 ) Diluted earnings (loss) per share attributable to Novanta Inc. $ 0.63 $ 1.02 $ (0.70 ) 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. The Company expects to fund the share repurchase through cash on hand and future cash flow from operations. During 2016, the Company repurchased 109 thousand shares in the open market for an aggregate purchase price of $1.6 million at an average price of $14.93 per share. During 2015, the Company repurchased 122 thousand shares in the open market for an aggregate purchase price of $1.6 million at an average price of $13.29 per share. As of December 31, 2016, the Company had repurchased an aggregate of 282 thousand shares for an aggregate purchase price of $3.8 million at an average price of $13.43 per share.

Supplementary Balance Sheet Inf

Supplementary Balance Sheet Information	12 Months Ended
	Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Supplementary Balance Sheet Information	9. Supplementary Balance Sheet Information The following tables provide the details of selected balance sheet items as of the dates indicated (in thousands): Inventories December 31, 2016 2015 Raw materials $ 39,822 $ 38,511 Work-in-process 8,012 10,138 Finished goods 9,511 9,266 Demo and consigned inventory 2,400 1,651 Total inventories $ 59,745 $ 59,566 Property, Plant and Equipment, net December 31, 2016 2015 Cost: Land, buildings and improvements $ 38,384 $ 48,154 Machinery and equipment 52,136 43,376 Total cost 90,520 91,530 Accumulated depreciation (55,099 ) (50,980 ) Property, plant and equipment, net $ 35,421 $ 40,550 As of December 31, 2016 and 2015, the Company has gross assets under capital lease of $13.2 million. The assets acquired under capital leases are included in land, buildings and improvements and machinery and equipment and the related amortization expense is included in depreciation expense. The Company also capitalized software development costs of $2.3 million, $1.9 million and $0.2 million in 2016, 2015 and 2014, respectively, in accordance with the guidance in ASC 350-40, “Internal-Use Software.” The following table summarizes depreciation expense on property, plant and equipment, including demo units and assets under capital leases (in thousands): Year Ended December 31, 2016 2015 2014 Depreciation expense $ 8,558 $ 7,873 $ 8,016 The following table summarizes total accumulated depreciation on assets under capital leases as of the dates indicated (in thousands): December 31, 2016 2015 Accumulated depreciation on assets under capital leases $ 4,950 $ 3,798 Accrued Expenses and Other Current Liabilities The following table summarizes accrued expenses and other current liabilities as of the dates indicated (in thousands): December 31, 2016 2015 Accrued compensation and benefits $ 9,647 $ 7,357 Accrued warranty 3,142 3,335 Accrued restructuring 1,371 1,652 Accrued professional services 1,237 1,039 Accrued contingent considerations 2,775 — Customer deposits 1,164 628 Other 7,612 7,171 Total $ 26,948 $ 21,182 Accrued Warranty The following table summarizes accrued warranty activities for the periods indicated (in thousands): Year Ended December 31, 2016 2015 2014 Balance at beginning of year $ 3,335 $ 3,044 $ 3,315 Provision charged to cost of revenue 1,673 2,025 1,684 Acquisition related warranty accrual 23 132 90 Use of provision (1,849 ) (1,454 ) (2,003 ) Divestiture of JK Lasers — (389 ) — Foreign currency exchange rate changes (40 ) (23 ) (42 ) Balance at end of year $ 3,142 $ 3,335 $ 3,044 Other Long Term Liabilities The following table summarizes other long term liabilities as of the dates indicated (in thousands ): December 31, 2016 2015 Capital lease obligations $ 8,111 $ 9,173 Accrued pension liabilities 5,957 3,693 Accrued contingent considerations 2,381 3,889 Other 2,264 2,690 Total 18,713 19,445

Debt

Debt	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Debt	10. Debt Debt consisted of the following (in thousands): December 31, 2016 2015 Senior Credit Facilities – term loan $ 7,500 $ 7,500 Less: unamortized debt issuance costs (134 ) (115 ) Total current portion of long-term debt $ 7,366 $ 7,385 Senior Credit Facilities – term loan $ 63,750 $ 20,000 Senior Credit Facilities – revolving credit facility 10,000 70,000 Less: unamortized debt issuance costs (3,196 ) (1,574 ) Total long-term debt $ 70,554 $ 88,426 Total Senior Credit Facilities $ 77,920 $ 95,811 Senior Credit Facilities On May 19, 2016, the Company entered into the second amended and restated credit agreement (the “Second Amended and Restated Credit Agreement”) with new and existing lenders for an aggregate credit facility of $300.0 million, consisting of a $75.0 million, 5-year term loan facility and a $225.0 million, 5-year revolving credit facility (collectively, the “Senior Credit Facilities”). The Senior Credit Facilities mature in May 2021. The term loan is payable in quarterly installments of $1.9 million beginning in July 2016 with the remaining amount due upon maturity. Borrowings under our revolving credit facility may be repaid at anytime through May 2021, the date of maturity of the Senior Credit Facilities. The Second Amended and Restated Credit Agreement amends and restates the amended and restated credit agreement dated December 27, 2012. The borrowings outstanding under the Senior Credit Facilities bear interest at rates based on (a) the Eurocurrency Rate, as defined in the Second Amended and Restated Credit Agreement, plus a rate ranging from 1.75% to 2.75% per annum or (b) the Base Rate, as defined in the Second Amended and Restated Credit Agreement, plus a rate ranging from 0.75% to 1.75% per annum, in each case based upon the Company’s consolidated leverage ratio. The Company is also required to pay a commitment fee on unused commitments under the revolving credit facility ranging between 0.25% and 0.45% per annum, which is based upon the Company’s consolidated leverage ratio. The Second Amended and Restated Credit Agreement contains various customary representations, warranties and covenants applicable to the Company and its subsidiaries, including: (i) limitations on restricted payments, including dividend payments and stock repurchases, provided that the Company and its subsidiaries may repurchase their equity interests, so long as immediately after giving effect to the repurchase, the Company’s consolidated leverage ratio is no more than 2.50:1.00; (ii) limitations on fundamental changes involving the Company and its subsidiaries; (iii) limitations on the disposition of assets; and (iv) limitations on indebtedness, investments, and liens. The Second Amended and Restated Credit Agreement also requires the Company to satisfy certain financial covenants, such as maintaining a minimum consolidated fixed charge coverage ratio of 1.50 to 1.00 and a maximum consolidated leverage ratio of 3.00 to 1.00. The maximum consolidated leverage ratio will increase to 3.50:1.00 for four consecutive quarters following an acquisition with an aggregate consideration greater than or equal to $50.0 million. The principal on the Company’s outstanding term loan matures as follows (in thousands): Term Loan 2017 $ 7,500 2018 7,500 2019 7,500 2020 7,500 2021 41,250 Total debt repayments $ 71,250 The Company may voluntarily prepay loans or reduce commitments under the Senior Credit Facilities, in whole or in part, without premium or penalty, subject to certain minimum principal amounts. The Company may be required to prepay outstanding loans under the Second Amended and Restated Credit Agreement with the net proceeds of certain asset dispositions and incurrences of certain debt. At the election of the Company, and so long as no default shall have occurred, the Company may reinvest within a year all or any portion of the net proceeds from such asset dispositions or incurrences of debt. As of December 31, 2016, the Company had $215.0 million available to be drawn under the revolving credit facility. Excluding commitment fees, the interest rate for the credit facility was approximately 2.9% as of December 31, 2016. The commitment fee rate for the unused commitments under the revolving credit facility was approximately 0.3% as of December 31, 2016. Guarantees The Senior Credit Facilities is guaranteed by the Company, Excel Technology, Inc. (“Excel”), JADAK LLC, NDS Surgical Imaging, LLC and Novanta Technologies UK Limited (collectively, “Guarantors”). Each Guarantor, jointly and severally, unconditionally guarantees the due and punctual payment of the principal, interest and fees under the Senior Credit Facilities, when due and payable, whether at maturity, by required prepayment, by acceleration or otherwise. In addition, Guarantors guarantee the due and punctual payment, fees and interest on the overdue principal of the Senior Credit Facilities and the due and punctual performance of all obligations of the Company in accordance with the terms of the Second Amended and Restated Credit Agreement. Furthermore, each Guarantor, jointly and severally, unconditionally guarantees that in the event of any extension, renewal, amendment, refinancing or modification of any of the Senior Credit Facilities or any of such other Obligations, as defined in the Second Amended and Restated Credit Agreement, amounts due will be promptly paid in full when due in accordance with the terms of the extension or renewal, at stated maturity, by acceleration or otherwise. The obligations of each Guarantor are limited to the maximum amount, after giving effect to all other contingent and fixed liabilities or any collections from or payments made by or on behalf of any other Guarantor. Each Guarantor that makes a payment or distribution under a Guarantee is entitled to a contribution from each other Guarantor of its Pro Rata Share, as defined in the Second Amended and Restated Credit Agreement, based on the adjusted net assets of each Guarantor. The Guarantees will continue to be effective or be reinstated, as the case may be, if at any time any payment of any of the obligations of the Guarantors is rescinded or must otherwise be returned upon the insolvency, bankruptcy or reorganization of the Company, a Guarantor or otherwise, all as though such payment had not been made. Each Guarantor may be released from its obligations under its respective Guarantee and its obligations under the Second Amended and Restated Credit Agreement upon the occurrence of certain events, including, but not limited to: (i) the Guarantor ceases to be a subsidiary; and (ii) payment in full of the principal and accrued and unpaid interest on the Senior Credit Facilities and all other obligations. As of December 31, 2016, the maximum potential amount of future payments the Guarantors could be required to make under the Guarantee is the principal amount of the Senior Credit Facilities plus all accrued and unpaid interest thereon. However, as of December 31, 2016, the Guarantors are not expected to be required to perform under the Guarantee. Liens The Company’s obligations under the Senior Credit Facilities are secured on a senior basis by a lien on substantially all of the assets of the Company and its material United States (“U.S.”) and United Kingdom (“U.K.”) subsidiaries and guaranteed by the Company and its material U.S. and U.K. subsidiaries. The Second Amended and Restated Credit Agreement also contains customary events of default. Deferred Financing Costs In connection with the execution of the Senior Credit Facilities, the Company capitalized an additional $2.5 million in deferred financing costs. The Company allocated these costs between the two debt facilities and is amortizing the costs on a straight-line basis over the term of the Senior Credit Facilities. Previously unamortized deferred financing costs related to the amended and restated credit agreement dated December 27, 2012 will continue to be amortized. Non-cash interest expense related to the amortization of the deferred financing costs was $0.9 million, $0.9 million and $1.0 million in 2016, 2015 and 2014, respectively. Unamortized deferred financing costs are presented as a reduction to debt in the consolidated balance sheet as of December 31, 2016. Fair Value of Debt As of December 31, 2016 and 2015, the outstanding balance of the Company’s debt approximated fair value based on current rates available to the Company for debt of the same maturities.

Capital Stock and Share-Based C

Capital Stock and Share-Based Compensation	12 Months Ended
	Dec. 31, 2016
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Capital Stock and Share-Based Compensation	11. Capital Stock and Share-Based Compensation Capital Stock The authorized capital of the Company consists of an unlimited number of common shares without nominal or par value. Holders of common shares are entitled to one vote per share. Holders of common shares are entitled to receive dividends, if and when declared by the Board of Directors, and to share ratably in its assets legally available for distribution to the stockholders in the event of liquidation. Holders of common shares have no redemption or conversion rights. 2010 Incentive Award Plan In November 2010, the Company’s stockholders approved the 2010 Incentive Award Plan (the “2010 Incentive Plan”) under which the Company may grant share-based compensation awards to employees, consultants and directors. In May 2014, the Company’s stockholders approved the amended and restated 2010 Incentive Award Plan and, in July 2016, the Company approved a further amended and restated 2010 Incentive Award Plan (as amended, the “Amended and Restated 2010 Incentive Plan”). The maximum number of shares which can be issued pursuant to the Amended and Restated 2010 Incentive Plan is 4,398,613, subject to adjustment as set forth in the Amended and Restated 2010 Incentive Plan. The Amended and Restated 2010 Incentive Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock, restricted stock units, stock appreciation rights, deferred stock, deferred stock units, dividend equivalents, performance awards and stock payments (collectively referred to as “Awards”). The Amended and Restated 2010 Incentive Plan allows the Company to continue to grant Awards intended to constitute “performance-based compensation” for purposes of Section 162(m) of the Internal Revenue Code of 1986, as amended, and includes certain provisions that reflect good corporate governance practices. The Amended and Restated 2010 Incentive Plan provides for specific limits on the number of shares with respect to Awards that may be granted to any person during any calendar year and the amount of cash that can be paid with respect to Awards to any one person during any calendar year. The Amended and Restated 2010 Incentive Plan will expire and no further Awards may be granted after April 9, 2024. As of December 31, 2016, there were 1,581,527 shares available for future awards under the Amended and Restated 2010 Incentive Plan. Shares subject to Awards that have expired, forfeited or settled in cash, or repurchased by the Company at the same price paid by the awardee may be added back to the number of shares available for grant under the Amended and Restated 2010 Incentive Plan and may be granted as new Awards. Notwithstanding the foregoing, the following shares will not be added back to the number of shares available for grant: (a) shares that are used to pay the exercise price for an option, (b) shares tendered or withheld to pay taxes with respect to any Award (other than options and stock appreciation rights) to the extent they exceed the number of shares with a fair market value equal to the tax liability based on minimum withholding rates, (c) shares tendered or withheld to pay taxes with respect to options and stock appreciation rights, (d) shares subject to a stock appreciation right that are not issued in connection with the stock settlement of the stock appreciation right on exercise thereof, and (e) shares purchased on the open market with the cash proceeds from the exercise of options. Shares issued to satisfy Awards under the Amended and Restated 2010 Incentive Plan may be previously authorized but unissued shares, treasury shares or shares repurchased on the open market. Share-Based Compensation Expense The table below summarizes share-based compensation expense recorded in income from continuing operations (in thousands): Year Ended December 31, 2016 2015 2014 Selling, general and administrative $ 3,920 $ 3,960 $ 3,967 Research and development and engineering 117 170 196 Cost of revenue 256 257 166 Restructuring, acquisition and divestiture related costs — (322 ) 322 Total share-based compensation expense $ 4,293 $ 4,065 $ 4,651 The expense recorded during each of the years ended December 31, 2016, 2015 and 2014 included $0.5 million, related to deferred stock units granted to the members of the Company’s Board of Directors pursuant to the Company’s Amended and Restated 2010 Incentive Plan. As of December 31, 2016, the Company’s outstanding equity awards for which compensation expense will be recognized in the future consist of time-based restricted stock units, performance stock units, and stock options granted under the Amended and Restated 2010 Incentive Plan. The Company expects to record aggregate share-based compensation expense of $6.8 million, net of estimated forfeitures, subsequent to December 31, 2016, over a weighted average period of 3.05 years, for all outstanding equity awards. Restricted Stock Units and Deferred Stock Units The Company’s restricted stock units (“RSUs”) have generally been issued with a three-year or five-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 restricted and deferred stock units issued and outstanding under the Amended and Restated 2010 Incentive Plan during the year ended December 31, 2016: Restricted and Deferred Stock Units (In thousands) Weighted Average Grant Date Fair Value Weighted Average Remaining Vesting Period (in years) Aggregate Intrinsic Value (1) (In thousands) Unvested at December 31, 2015 619 $ 12.32 Granted 531 $ 14.29 Vested (373 ) $ 12.01 Forfeited (142 ) $ 13.11 Unvested at December 31, 2016 635 $ 13.97 2.07 years $ 13,335 Expected to vest as of December 31, 2016 608 $ 14.00 2.07 years $ 12,767 (1) The aggregate intrinsic value is calculated based on the fair value of $21.00 per share of the Company’s common stock on December 31, 2016 due to the fact that the restricted stock units carry a $0 purchase price. The total fair value of restricted stock units that vested in 2016 and deferred stock units that were granted and vested in 2016, based on the market price of the underlying stock on the day of vesting, was $5.1 million. 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 Amended and Restated 2010 Incentive Plan during the year ended December 31, 2016: Performance Stock Units (2) (In thousands) Weighted Average Grant Date Fair Value Weighted Average Remaining Vesting Period (in years) Aggregate Intrinsic Value (1) (In thousands) Unvested at December 31, 2015 — $ — Granted 46 $ 14.13 Vested — $ — Forfeited (17 ) $ 14.13 Unvested at December 31, 2016 29 $ 14.13 2.00 years $ 615 Expected to vest as of December 31, 2016 29 $ 14.13 2.00 years $ 615 (1) The aggregate intrinsic value is calculated based on the fair value of $21.00 per share of the Company’s common stock on December 31, 2016 due to the fact that the performance stock units carry a $0 purchase price. (2) The unvested PSUs are shown in this table at target, except for the number of shares vested, which reflect the shares earned. As of December 31, 2016, the maximum number of PSUs available to be earned is approximately 59 thousand. 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 beginning on the anniversary date of 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 Amended and Restated 2010 Incentive Plan during the year ended December 31, 2016: Stock Options (In thousands) Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (1) (In thousands) Unvested at December 31, 2015 — $ — Granted 193 $ 14.13 Exercised (13 ) $ 14.13 Forfeited (77 ) $ 14.13 Unvested at December 31, 2016 103 $ 14.13 9.25 years $ 707 Exercisable as of December 31, 2016 — $ - - - Expected to vest as of December 31, 2016 103 $ 14.13 9.25 years $ 707 (1) The aggregate intrinsic value is calculated as the difference between the market price of $21.00 per share of the Company’s common stock on December 31, 2016 and the grant date exercise price. The fair value of stock options granted during 2016 was estimated as of the grant date using the Black-Scholes valuation model with the following assumptions: 2016 Expected option term in year (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 total fair value of stock options that exercised in 2016, based on the difference between market price on the date of exercise and the grant date, was less than $0.1 million. The total amount of cash received from the exercise of these stock options was $0.2 million. The actual tax benefit realized for the tax deductions from option exercises was less than $0.1 million in 2016.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	12. Employee Benefit Plans Defined Benefit Plans The Company maintains a defined benefit pension plan in the United Kingdom (the “U.K. Plan”). The U.K. Plan was closed to new membership in 1997 and stopped accruing additional pension benefits for existing members in 2003. Benefits under the U.K. Plan were based on the employees’ years of service and compensation as of the date the plan was frozen in 2003, adjusted for inflation. The Company continues to fund the plan in sufficient amounts to cover current benefit payments as well as to fund a portion of the unfunded pension obligations based on periodic agreements with the trustees of the U.K. Plan. The net periodic pension cost consisted of the following components (in thousands): Year Ended December 31, 2016 2015 2014 Components of the net periodic pension cost: Interest cost $ 1,232 $ 1,340 $ 1,589 Expected return on plan assets (1,566 ) (1,844 ) (1,958 ) Amortization of actuarial losses 726 875 374 Net periodic pension cost $ 392 $ 371 $ 5 The actuarial assumptions used to compute the net periodic pension cost for the years ended December 31, 2016, 2015 and 2014, respectively, were as follows: Year Ended December 31, 2016 2015 2014 Weighted-average discount rate 3.8 % 3.5 % 4.6 % Weighted-average long-term rate of return on plan assets 5.3 % 5.6 % 5.9 % The actuarial assumptions used to compute the benefit obligations as of December 31, 2016 and 2015, respectively, were as follows: December 31, 2016 2015 Weighted-average discount rate 2.6 % 3.8 % Rate of inflation 3.0 % 2.8 % The discount rates used are derived from (AA) corporate bonds that have maturities approximating the terms of the related obligations. In estimating the expected return on plan assets, the Company considered the historical performance of the major asset classes held and current forecasts of future rates of return for these asset classes. The following table provides a reconciliation of benefit obligations and plan assets of the U.K. Plan (in thousands): December 31, 2016 2015 Change in benefit obligation: Projected benefit obligation at beginning of year $ 35,914 $ 39,421 Interest cost 1,232 1,340 Actuarial (gains) losses 7,425 (2,083 ) Benefits paid (809 ) (798 ) Foreign currency exchange rate changes (6,501 ) (1,966 ) Projected benefit obligation at end of year $ 37,261 $ 35,914 Accumulated benefit obligation at end of year $ 37,261 $ 35,914 Change in plan assets: Fair value of plan assets at beginning of year $ 32,374 $ 33,610 Actual return on plan assets 4,522 342 Employer contributions 868 955 Benefits paid (809 ) (798 ) Foreign currency exchange rate changes (5,651 ) (1,735 ) Fair value of plan assets at end of year $ 31,304 $ 32,374 Funded status at end of year $ (5,957 ) $ (3,540 ) Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost: Net actuarial losses at beginning of year $ (9,874 ) $ (11,890 ) Net actuarial gains (losses) during the year (4,469 ) 581 Amounts reclassified from accumulated other comprehensive income to income before income taxes 726 875 Foreign currency exchange rate changes 1,920 560 Net actuarial losses at end of year $ (11,697 ) $ (9,874 ) Amounts expected to be amortized from accumulated other comprehensive loss into net periodic pension cost over the next fiscal year consists of: Net actuarial loss $ 1,148 $ 794 The funded status of the U.K. Plan is included in other long term liabilities in the accompanying consolidated balance sheets. The following table reflects the total expected benefit payments to plan participants and have been estimated based on the same assumptions used to measure the Company’s benefit obligations as of December 31, 2016 (in thousands): Amount 2017 $ 875 2018 725 2019 1,048 2020 1,205 2021 1,371 2022-2026 7,667 Total $ 12,891 In the U.K., funding valuations are conducted every three years in order to determine the future level of contributions. Based on the results of the most recent valuation completed in the fourth quarter 2015, the Company’s annual contributions will be approximately $0.8 million per year in 2017 and will increase by 2.9% per year thereafter. Fair Value of Plan Assets The trustees of the U.K. Plan have the fiduciary responsibilities to manage the plan assets in consultation with the Company. The overall objective is to invest plan assets in a portfolio of diversified assets, primarily through the use of institutional collective funds, to achieve balanced growth through a combination of investments in equities for long-term growth and investments in debt instruments that match a portion of the expected future benefit payments and to maintain adequate liquidity to make pension payments to pensioners. The following table summarizes the fair values of Plan assets by asset category as of December 31, 2016 (in thousands): Asset Category Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Other Unobservable Inputs (Level 3) Not Subject to Leveling (4) Mutual Funds: Balanced (1) $ 23,317 $ — $ — $ — $ 23,317 Growth (2) 3,239 — — — 3,239 Fixed income (3) 4,512 — — — 4,512 Cash 236 236 — — — Total $ 31,304 $ 236 $ — $ — $ 31,068 (1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (34%), bonds (36%), other assets (27%) and cash (3%). (2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (59%), bonds (16%), other assets (22%) and cash (3%). (3) This class comprises a diversified portfolio of global investments which seeks fixed income and is allocated on a weighted average basis as follows: bonds (93%), other assets (1%) and cash (6%). (4) In 2016, the Company adopted ASU 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent).” As a result of the adoption, pension plan assets measured using the net asset value per share (or its equivalent) are presented as “Not Subject to Leveling” in the table above. The following table summarizes the fair values of Plan assets by asset category as of December 31, 2015 (in thousands): Asset Category Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Other Unobservable Inputs (Level 3) Not Subject to Leveling (3) Mutual Funds: Balanced (1) $ 15,611 $ — $ — $ — $ 15,611 Growth (2) 16,583 — — — 16,583 Cash 180 180 — — — Total $ 32,374 $ 180 $ — $ — $ 32,194 (1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (52%), bonds (24%), other assets (9%) and cash (15%). (2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (12%), other assets (9%), and cash (12%). (3) In 2016, the Company adopted ASU 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent).” As a result of the adoption, pension plan assets measured using the net asset value per share (or its equivalent) are presented as “Not Subject to Leveling” in the table above. The tables above present the fair value of plan assets in accordance with the fair value hierarchy. Except for cash, pension plan assets are measured using net asset value per share (or its equivalent). These investments have quoted prices in inactive markets and there are significant other observable inputs which can be corroborated by observable market data for substantially the full term of the plan assets. Defined Contribution Plans The Company has defined contribution employee savings plans in the U.K., Japan, and the U.S. The Company matches the contributions of participating employees on the basis of percentages specified in each plan. Company matching contributions to the plans were $2.5 million, $2.7 million and $2.6 million for the years ended December 31, 2016, 2015 and 2014, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes Components of the Company’s income (loss) from continuing operations before income taxes are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Income (loss) from continuing operations before income taxes: Canada $ (1,872 ) $ (1,674 ) $ (20,212 ) U.S. 20,422 23,298 (9,661 ) Other 13,972 24,398 11,958 Total $ 32,522 $ 46,022 $ (17,915 ) Components of the Company’s income tax provision (benefit) are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Current Canada $ 43 $ 96 $ 175 U.S. 9,678 8,136 3,615 Other 2,564 3,854 1,940 12,285 12,086 5,730 Deferred Canada — — — U.S. (2,378 ) (3,239 ) (6,731 ) Other 612 1,547 (5 ) (1,766 ) (1,692 ) (6,736 ) Total $ 10,519 $ 10,394 $ (1,006 ) The Company is incorporated in Canada and therefore uses the Canadian statutory rate for income tax disclosure. The reconciliation of the statutory Canadian tax rate to the effective tax rate related to income before income taxes from continuing operations is as follows (in thousands, except percentage data): Year Ended December 31, 2016 2015 2014 Statutory Canadian tax rate 28.50 % 27.00 % 27.00 % Expected income tax provision at Canadian statutory tax rate $ 9,269 $ 12,426 $ (4,837 ) International tax rate differences 891 304 (1,132 ) State income taxes, net 503 453 (271 ) Withholding and other taxes 441 731 421 Permanent differences 179 1,000 486 Acquisition contingent consideration adjustments 762 — — Transaction costs 649 270 8 Section 199 deduction (1,063 ) (1,188 ) (574 ) Change in valuation allowance 1,202 (612 ) 4,809 Provision to return differences (93 ) (617 ) 962 Tax credits (1,095 ) (990 ) (1,678 ) Statutory tax rate change (856 ) 95 (13 ) Uncertain tax positions (103 ) 121 134 IRS audit — (748 ) 241 JK Lasers divestiture — (1,432 ) — Goodwill impairment — — 330 Other (167 ) 581 108 Reported income tax provision (benefit) $ 10,519 $ 10,394 $ (1,006 ) Effective tax rate 32.3 % 22.6 % 5.6 % Deferred income taxes result principally from temporary differences in the recognition of certain revenue and expense items and operating loss and tax credit carryforwards for financial and tax reporting purposes. Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2016 and 2015 are as follows (in thousands): December 31, 2016 2015 Deferred tax assets: Losses $ 9,557 $ 9,985 Compensation related deductions 4,437 2,915 Tax credits 2,318 2,409 Restructuring related liabilities 471 294 Inventory 5,869 4,415 Depreciation — 503 Amortization 3,082 3,205 Warranty 1,049 1,127 Other 1,688 1,281 Total deferred tax assets 28,471 26,134 Valuation allowance on deferred tax assets (13,014 ) (12,537 ) Net deferred tax assets $ 15,457 $ 13,597 Deferred tax liabilities: Equity-method investment $ (1,370 ) $ (1,733 ) Depreciation (749 ) — Amortization (4,162 ) (2,791 ) Unrealized currency gains/losses (659 ) (1,292 ) Other (1,218 ) (345 ) Total deferred tax liabilities $ (8,158 ) $ (6,161 ) Net deferred income tax assets (liabilities) $ 7,299 $ 7,436 In determining its income tax provisions, the Company calculated deferred tax assets and liabilities for each separate jurisdiction. The Company then considered a number of factors, including positive and negative evidence related to the realization of its deferred tax assets, to determine whether a valuation allowance should be recognized with respect to its deferred tax assets. In 2016, the Company recorded valuation allowance of $1.3 million against its current year net operating losses and other timing items in certain tax jurisdictions. The Company also reduced its Canadian loss carryforward and other attributes and the related valuation allowance of $0.3 million. Further, the Company released $0.1 million of valuation allowance recorded on certain U.S. state tax net operating losses and utilized $0.4 million of its U.S. capital loss carryforward against the current year net capital gain. In 2015, the Company recorded valuation allowance of $0.8 million against its current year net operating losses in certain tax jurisdictions. Further, the Company released $0.8 million of valuation allowance recorded on certain U.S. state tax net operating losses and utilized $0.6 million of its U.S. capital loss carryforward against the current year net capital gain. In 2014, the Company recorded valuation allowance of $0.3 million against its current year net operating losses in certain tax jurisdictions and increased valuation allowance recorded on certain U.S. state tax net operating losses by $0.3 million and capital loss carryforwards by $0.4 million. Valuation allowance continues to be provided on the remaining balances of certain U.S. state net operating losses and certain foreign tax attributes that the Company has determined that it is more likely than not that they will not be realized. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company continuously reassesses the possibility of releasing the valuation allowance currently in place on its deferred tax assets. As of December 31, 2016, the Company had net operating loss carryforwards of $4.4 million (tax effected) available to reduce future taxable income. Of this amount, approximately $1.3 million relates to the U.S. and expires through 2035; and $3.1 million relates to Canada and expires starting in 2031. In addition, the Company had capital loss carryforwards of $5.2 million, which had a full valuation allowance. Of this amount, $4.7 million and $0.5 million related to Canada and the U.K, respectively. As of December 31, 2015, the Company had net operating loss carryforwards of $4.9 million (tax effected) available to reduce future taxable income. Of this amount, approximately $1.6 million relates to the U.S. and expires through 2034; $2.4 million relates to Canada and expires starting in 2031; $0.7 million relates to the U.K. and can be carried forward indefinitely; and $0.2 million relates to other countries and will started expiring in 2020. In addition, the Company had capital loss carryforwards of $5.1 million, which had a full valuation allowance. Of this amount, $4.3 million, $0.4 million and $0.4 million relates to Canada, the U.S. and the U.K., respectively. As of December 31, 2016, the Company had tax credit carryforwards of approximately $2.3 million available to reduce income taxes in future years. Approximately $0.5 million relates to the U.S. state tax attributes, of which $0.4 million will expire through 2031 and $0.1 million can be carried forward indefinitely. The remaining $1.8 million tax credit carryforwards were related to Canada, of which $1.1 million expires through 2022 and $0.7 million can be carried forward indefinitely. As of December 31, 2015, the Company had tax credit carryforwards of approximately $2.4 million available to reduce income taxes in future years. Approximately $0.7 million relates to the U.S. state tax attributes, of which $0.6 million will expire through 2030 and $0.1 million can be carried forward indefinitely. The remaining $1.7 million tax credit carryforwards were related to Canada, of which $1.1 million expires through 2022 and $0.6 million can be carried forward indefinitely. Income and foreign withholding taxes have not been recognized on the excess of the amount for financial reporting purposes over the tax basis of investments in foreign subsidiaries that are essentially permanent in nature. This amount becomes taxable upon a repatriation of assets from a subsidiary or a sale or liquidation of a subsidiary. The amount of undistributed earnings of foreign subsidiaries totaled $15.2 million as of December 31, 2016. The estimated unrecognized deferred income tax liabilities on this temporary difference is approximately $0.2 million. As of December 31, 2016, the Company’s total amount of gross unrecognized tax benefits was $5.0 million, of which $4.0 million would favorably affect its effective tax rate. Over the next twelve months, the Company may need to record up to $1.7 million of previously unrecognized tax benefits in the event of statute of limitations closures. The Company believes there are no other jurisdictions in which the outcome of unresolved issues or claims is likely to be material to its results of operations, financial position or cash flows. Furthermore, the Company believes it has adequately provided for all income tax uncertainties. As of December 31, 2015, the Company’s total amount of gross unrecognized tax benefits was $5.5 million, of which $4.1 million would favorably affect its effective tax rate. Over the next twelve months, the Company may need to record up to $1.2 million of previously unrecognized tax benefits in the event of statute of limitations closures. The Company believes there are no other jurisdictions in which the outcome of unresolved issues or claims is likely to be material to its results of operations, financial position or cash flows. Furthermore, the Company believes it has adequately provided for all income tax uncertainties. The reconciliation of the total amounts of unrecognized tax benefits is as follows (in thousands): Balance at December 31, 2013 $ 7,074 Additions based on tax positions related to the current year 1,180 Additions for tax positions of prior years 2,601 Reductions for tax positions of prior years (2,404 ) Reductions to tax positions resulting from a lapse of the applicable statute of limitations (2,177 ) Balance at December 31, 2014 6,274 Additions based on tax positions related to the current year 752 Additions for tax positions of prior years 78 Reductions for tax positions of prior years (626 ) Reductions to tax positions resulting from a lapse of the applicable statute of limitations (226 ) Settlements with tax authorities (762 ) Balance at December 31, 2015 5,490 Additions based on tax positions related to the current year 561 Additions for tax positions of prior years 88 Reductions for tax positions of prior years (45 ) Reductions to tax positions resulting from a lapse of the applicable statute of limitations (842 ) Settlements with tax authorities (290 ) Balance at December 31, 2016 $ 4,962 The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2016 and 2015, the Company had approximately $1.1 million and $0.9 million, respectively, of accrued interest and penalties related to uncertain tax positions. During the years ended December 31, 2016 and 2015, the Company recognized less than $0.1 million, of expense for an increase in interest and penalties related to uncertain tax positions. The Company files income tax returns in Canada, the U.S., and various states and foreign jurisdictions. Generally, the Company is no longer subject to U.S. or foreign income tax examinations, including transfer pricing tax audits, by tax authorities for the years before 2007. The Company’s income tax returns may be reviewed by tax authorities in the following countries for the following periods under the appropriate statute of limitations: United States 2013 - Present Canada 2011 - Present United Kingdom 2015 - Present Germany 2011 - Present Netherlands 2011 - Present China 2007 - Present Japan 2012 - Present

Restructuring, Acquisition and

Restructuring, Acquisition and Divestiture Related Costs	12 Months Ended
	Dec. 31, 2016
Restructuring And Related Activities [Abstract]
Restructuring, Acquisition and Divestiture Related Costs	14. Restructuring, Acquisition and Divestiture Related Costs The following table summarizes restructuring, acquisition and divestiture related costs recorded in the accompanying consolidated statements of operations (in thousands): Year Ended December 31, 2016 2015 2014 2016 restructuring $ 3,049 $ 3,148 $ — 2015 restructuring — 1,484 — 2013 restructuring — — 25 2011 restructuring (79 ) 1,208 389 Total restructuring charges $ 2,970 $ 5,840 $ 414 Acquisition and related charges $ 4,975 $ 1,301 $ 1,521 Divestiture related charges — 1,113 — Total acquisition and divestiture related charges $ 4,975 $ 2,414 $ 1,521 Total restructuring, acquisition and divestiture related costs $ 7,945 $ 8,254 $ 1,935 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. Restructuring costs incurred in 2016 of $2.4 million, $(0.2) million and $0.8 million were related to severance, facility, and other, respectively. We substantially completed the 2016 restructuring program during the second quarter of 2016. In August 2016, the Company sold our facility in Chatsworth, California for a net cash consideration of $3.4 million and recognized a gain on sale of $1.6 million as part of restructuring, acquisition and divestiture related costs. As of December 31, 2016, the Company incurred cumulative costs related to this restructuring plan totaling $6.2 million, net of the gain on sale of the Chatsworth, California facility. The Company expects to incur additional restructuring charges of $0.2 million to $0.3 million related to the 2016 restructuring plan in the next twelve months. The following table summarizes restructuring costs associated with the 2016 restructuring program for each segment and unallocated corporate costs (in thousands): Year Ended Year Ended Cumulative Costs as of December 31, 2016 December 31, 2015 December 31, 2016 Photonics $ 813 $ 55 $ 868 Vision 1,862 2,200 4,062 Precision Motion 106 833 939 Unallocated Corporate and Shared Services 268 60 328 Total $ 3,049 $ 3,148 $ 6,197 2015 Restructuring During the first quarter of 2015, the Company implemented 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. Restructuring costs incurred in 2015 of $1.4 million and $0.1 million were related to severance and other, respectively. The plan was completed during 2015. The following table summarizes the total costs for each segment and unallocated corporate costs related to the 2015 restructuring plan (in thousands): Year Ended December 31, 2015 Photonics $ 542 Vision 525 Precision Motion 79 Unallocated Corporate and Shared Services 338 Total $ 1,484 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. In total, eleven facilities have been exited as part of the 2011 restructuring plan. These eliminations resulted in the consolidation of the manufacturing facilities of the Scientific Lasers business and the optics products, the consolidation of the Company’s German operations into one facility, the consolidation of the laser scanners business into the Company’s Bedford, Massachusetts facility and the consolidation of the Company’s Japan operation into one facility. Included in the eleven facilities exited are five facilities exited as part of the Semiconductor and Laser Systems business divestitures. The restructuring costs for the Semiconductor and Laser Systems businesses have been excluded from the table below as they have been reported as part of the operating results from discontinued operations. The Company substantially completed the 2011 restructuring program in 2013. In March 2016, the Company sold our previously exited facility located in Orlando, Florida for cash at the net carrying value of $3.5 million. In December 2016, the lease agreement for the Company’s previously exited laser scanner business facility was terminated, which resulted in a benefit of $0.2 million. Restructuring costs from the 2011 restructuring program recognized in 2016 are primarily depreciation and other costs related to the Orlando, Florida facility and the previously exited laser scanners business facility. The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2011 restructuring plan (in thousands): Cumulative Year Ended December 31, Costs as of 2016 2015 2014 December 31, 2016 Photonics $ (188 ) $ — $ (106 ) $ 1,751 Vision — — — 48 Precision Motion — — — 122 Unallocated Corporate and Shared Services 109 1,208 495 3,262 Total $ (79 ) $ 1,208 $ 389 $ 5,183 Rollforward of Accrued Expenses Related to Restructuring The following table summarizes the accrual activities, by component, related to the Company’s restructuring charges recorded in the accompanying consolidated balance sheets (in thousands): Total Severance Facility Depreciation Other (b) Balance at December 31, 2014 $ 231 $ 102 $ 108 $ — $ 21 Restructuring charges 5,840 3,918 441 1,082 399 Cash payments (3,126 ) (2,668 ) (156 ) — (302 ) Non-cash write-offs and other adjustments (1,063 ) 6 13 (1,082 ) — Balance at December 31, 2015 1,882 1,358 406 — 118 Restructuring charges (a) 4,929 2,738 777 616 798 Reserves reversed (322 ) (322 ) — — — Cash payments (4,181 ) (3,170 ) (104 ) — (907 ) Non-cash write-offs and other adjustments (572 ) 7 32 (616 ) 5 Balance at December 31, 2016 $ 1,736 $ 611 $ 1,111 $ — $ 14 (a) Excludes $1.6 million of gain on sale of the Chatsworth, California facility. (b) Other restructuring charges mainly related to consulting fees and relocation costs. The Company expects to make $1.0 million in cash payments during the twelve months ending December 31, 2017 . Acquisition and Divestiture Related Charges Acquisition related costs incurred to effect a business combination, including finders’ fees, legal, valuation and other professional or consulting fees, totaled $2.5 million, $1.5 million, and $0.9 million during 2016, 2015, and 2014, respectively. Acquisition related costs recognized under earn-out agreements in connection with acquisitions totaled $2.5 million, $(0.2) million, and $0.6 million during 2016, 2015, and 2014, respectively. Expenses associated with divestiture activities of $1.1 million during 2015 included legal and professional fees directly related to the completion of the JK Lasers divestiture.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	15. Commitments and Contingencies Operating Leases The Company leases certain equipment and facilities under operating lease agreements. Most of these lease agreements expire between 2017 and 2019. In the U.K., where longer lease terms are more common, the Company has a land lease that extends through 2078. During the years ended December 31, 2016, 2015 and 2014, the Company recorded lease expense of $4.2 million, $4.5 million and $4.1 million, respectively. In addition to the base rent, the Company is generally required to pay insurance, real estate taxes and maintenance costs which is recorded in lease expense. In connection with the sale of the Scientific Lasers business in 2014, the Company assigned to the buyer the lease for the facility in San Jose, California, where the Scientific Lasers business operated. The buyer assumed all of our rights and obligations under the original lease, including the duty to pay the rent for the remainder term of the lease. So long as the buyer performs its obligations as the tenant, as required by the Asset and Equity Purchase Agreement for its acquisition of the Scientific Lasers business, the Company has no responsibilities for the lease. Should the buyer cease performance under the lease, however, the landlord could still pursue the Company as the original tenant until February 28, 2019, the end of the lease term. In the meantime, the Company has indemnification rights against the buyer under the Asset and Equity Purchase Agreement for such buyer’s default. The lease associated with this facility has been excluded from the operating lease commitments table below. Capital Leases As of December 31, 2016 and 2015, gross assets under capital lease were as follows (in thousands): 2016 2015 Land, buildings and improvements $ 9,133 $ 9,133 Machinery and equipment 4,026 4,026 Total gross assets under capital lease $ 13,159 $ 13,159 Future Lease Payments Future minimum lease payments under operating and capital leases expiring subsequent to December 31, 2016, including operating leases associated with facilities that have been vacated as a result of the Company’s restructuring actions, are as follows (in thousands): Year Ended December 31, Operating Lease Capital Lease (1) 2017 $ 4,519 $ 1,294 2018 3,202 864 2019 1,913 887 2020 240 907 2021 125 907 Thereafter 4,267 7,232 Total minimum lease payments $ 14,266 $ 12,091 (1) Capital lease payments include interest payments of $3.2 million. Purchase Commitments As of December 31, 2016, the Company had unconditional commitments primarily for inventory purchases of $30.9 million. These purchase commitments are expected to be incurred as follows: $29.1 million in 2017, $1.8 million in 2018, and less than $0.1 million in 2019 and 2020. Legal Proceedings 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. On July 1, 2013, the Company provided a Guarantee (the “Guarantee”) in favor of the trustees of the U.K. Plan with respect to all present and future obligations and liabilities (whether actual or contingent and whether owed jointly or severally and in any capacity whatsoever) of Novanta Technologies UK Limited, a wholly owned subsidiary of Novanta Inc. Credit Risks and Other Uncertainties The Company maintains financial instruments such as cash and cash equivalents and trade receivables. From time to time, certain of these instruments may subject the Company to concentrations of credit risk whereby one institution may hold a significant portion of the cash and cash equivalents, or one customer may represent a large portion of the accounts receivable balances. There was no significant concentration of credit risk related to the Company’s position in trade accounts receivable as no individual customer represented 10% or more of the Company’s outstanding accounts receivable at December 31, 2016 and 2015. Credit risk with respect to trade accounts receivables is generally minimized because of the diversification of the Company’s operations, as well as its large customer base and its geographical dispersion. Certain of the components and materials included in the Company’s products are currently obtained from single source suppliers. There can be no assurance that a disruption of the supply of such components and materials would not create substantial manufacturing delays and additional cost to the Company. The Company’s operations involve a number of other risks and uncertainties including, but not limited to, the effects of general economic conditions, rapidly changing technology, and international operations.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Segment Information	16. Segment Information Reportable Segments 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: Photonics (formerly known as Laser Products), Vision (formerly known as Vision Technologies), and Precision Motion. The reportable segments and their principal activities consist of the following: Photonics The Photonics segment designs, manufactures and markets photonics-based solutions, including CO2 laser sources, laser scanning and laser 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 The Vision 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, light and color measurement instrumentation, and embedded touch screen solutions, 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 to OEM customers. 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, operating income (loss) from continuing operations, depreciation and amortization, accounts receivable and inventory by reportable segments are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Revenue Photonics $ 174,158 $ 168,331 $ 177,726 Vision 122,250 124,725 122,187 Precision Motion 88,350 80,542 64,793 Total $ 384,758 $ 373,598 $ 364,706 Year Ended December 31, 2016 2015 2014 Gross Profit Photonics $ 76,696 $ 73,602 $ 74,224 Vision 47,181 48,966 48,678 Precision Motion 40,044 36,709 28,333 Unallocated Corporate and Shared Services (1,469 ) (1,387 ) (1,068 ) Total $ 162,452 $ 157,890 $ 150,167 Year Ended December 31, 2016 2015 2014 Operating Income (Loss) from Continuing Operations Photonics $ 34,825 $ 35,971 $ 33,053 Vision (1,277 ) (2,057 ) (43,079 ) Precision Motion 21,101 16,877 13,023 Unallocated Corporate and Shared Services (22,086 ) (21,858 ) (19,803 ) Total $ 32,563 $ 28,933 $ (16,806 ) Year Ended December 31, 2016 2015 2014 Depreciation and Amortization Photonics $ 6,738 $ 6,083 $ 6,481 Vision 10,402 8,599 13,254 Precision Motion 2,439 2,533 1,943 Unallocated Corporate and Shared Services 1,394 2,981 2,743 Total $ 20,973 $ 20,196 $ 24,421 December 31, 2016 2015 Accounts Receivable Photonics $ 28,886 $ 21,763 Vision 22,885 21,691 Precision Motion 11,998 13,734 Total accounts receivable $ 63,769 $ 57,188 Inventory Photonics $ 28,976 $ 29,501 Vision 20,656 19,583 Precision Motion 10,113 10,482 Total inventory $ 59,745 $ 59,566 Total segment assets $ 123,514 $ 116,754 December 31, 2016 2015 Total Assets Total segment assets 123,514 116,754 Cash and cash equivalents 68,108 59,959 Prepaid income taxes and income taxes receivable 2,058 2,510 Prepaid expenses and other current assets 5,570 5,989 Property, plant and equipment, net 35,421 40,550 Deferred tax assets 8,593 7,885 Other assets 12,502 12,673 Intangible assets, net 61,743 66,269 Goodwill 108,128 103,456 Total $ 425,637 $ 416,045 Geographic Information The Company aggregates geographic revenue based on the customer location where products are shipped. Revenue to these customers is as follows (in thousands, except percentage data): Year Ended December 31, 2016 2015 2014 Revenue % of Total Revenue % of Total Revenue % of Total United States $ 154,756 40.2 % $ 154,825 41.4 % $ 140,973 38.7 % Germany 55,940 14.5 54,743 14.7 59,029 16.2 Rest of Europe 51,705 13.4 48,277 12.9 54,308 14.9 China 44,225 11.5 38,491 10.3 40,792 11.2 Rest of Asia-Pacific 60,104 15.6 62,467 16.7 58,830 16.1 Other 18,028 4.8 14,795 4.0 10,774 2.9 Total $ 384,758 100.0 % $ 373,598 100.0 % $ 364,706 100.0 % Long-lived assets consist of property, plant and equipment, net, and are aggregated based on the location of the assets. A summary of these long-lived assets is as follows (in thousands): December 31, 2016 2015 United States $ 29,509 $ 34,907 Europe 4,588 4,014 China 1,286 1,593 Asia-Pacific and other 38 36 Total $ 35,421 $ 40,550 Significant Customers No customer accounted for greater than 10% of the Company’s sales during the years ended December 31, 2016, 2015 or 2014.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2016
Subsequent Events [Abstract]
Subsequent Events	17. Subsequent Events Acquisition of Laser Quantum Limited On January 10, 2017, the Company acquired approximately 35% of the outstanding shares of Laser Quantum Limited (“Laser Quantum”), a Manchester, United Kingdom-based provider of solid state continuous wave lasers, femtosecond lasers, and optical light engines to OEMs in the medical market, for a total purchase price of £25.5 million ($31.8 million). The acquisition was financed with cash on hand and a $30.0 million draw-down on our revolving credit facility. In addition, the Company and the minority equity holders entered into a call and put option for the purchase and sale of all remaining Laser Quantum shares held by the minority equity holders in 2020, subject to certain conditions. The purchase price for the remaining shares will be based on a multiple of Laser Quantum EBITDA for the twelve months ending December 31, 2019, as defined in the call and put option agreement. As a result of this transaction, the Company’s ownership position in Laser Quantum increased from approximately 41% to approximately 76%. As a result of this increase in equity ownership, the future financial results of Laser Quantum will be consolidated in the Company’s consolidated financial statements. In connection with the purchase price allocation under the business combination rules, the Company expects to recognize a pre-tax gain of $25 million to $28 million during the first quarter of 2017, representing the excess fair value of our previously held equity interest in Laser Quantum over its carrying value. Laser Quantum will be included in our Photonics reportable segment. Information required by ASC 805-10, “Business Combinations,” is not disclosed herein as the Company is in the process of completing its purchase accounting evaluation, including purchase price allocation and other related disclosures. Acquisition of ThingMagic On January 10, 2017, the Company acquired ThingMagic, a Woburn, Massachusetts-based provider UHF RFID modules and finished RFID readers to OEMs in the medical and advanced industrial markets, for a total purchase price of $19.2 million, subject to customary working capital adjustments. The acquisition was financed with cash on hand and a $12.0 million draw-down on our revolving credit facility. ThingMagic will be included in our Vision reportable segment. Information required by ASC 805-10, “Business Combinations,” is not disclosed herein as the Company is in the process of completing its purchase accounting evaluation, including purchase price allocation and other related disclosures.

Organization and Presentation (

Organization and Presentation (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation These consolidated financial statements have been prepared by the Company in U.S. dollars and in accordance with U.S. generally accepted accounting principles, applied on a consistent basis. The consolidated financial statements include the accounts of Novanta Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated. As of December 31, 2016, the Company had a 41% ownership interest in Laser Quantum Limited (“Laser Quantum”), a privately held company located in the United Kingdom. As of December 31, 2016, the financial results of Laser Quantum were accounted for under the equity method of accounting. On January 10, 2017, the Company acquired approximately 35% of the shares of Laser Quantum. As a result of this transaction, the Company’s ownership position in Laser Quantum increased from approximately 41% to approximately 76%. Laser Quantum will be consolidated in the Company’s consolidated financial statements starting in January 2017.
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.
Foreign Currency Translation	Foreign Currency Translation The financial statements of the Company and its subsidiaries outside the United States have been translated into U.S. dollars. Assets and liabilities of foreign operations are translated from foreign currencies into U.S. dollars at the exchange rates in effect on the balance sheet date. Revenue and expenses are translated at the average exchange rate in effect for the period. Accordingly, gains and losses resulting from translating foreign currency financial statements are reported as cumulative translation adjustment, a separate component of other comprehensive income (loss) in stockholders’ equity. Foreign currency transaction gains and losses, primarily from transactions denominated in currencies other than the functional currency, are included in the accompanying consolidated statements of operations.
Cash Equivalents	Cash Equivalents Cash equivalents, primarily money market accounts, are highly liquid investments with original maturities of three months or less. These investments are carried at cost, which approximates fair value.
Long-Term Investments	Long-Term Investments At December 31, 2016 and 2015, the Company had a 41% equity investment in Laser Quantum, a privately held company located in the United Kingdom. During each of the periods presented, the Company used the equity method to account for the results of this entity as it did not have a controlling interest in the entity. The Company recognized investment income of $2.2 million, $2.7 million and $2.7 million during 2016, 2015 and 2014, respectively, which is included in other income (expense) in the accompanying consolidated statements of operations. The Company’s net investment in Laser Quantum was $8.5 million and $10.1 million at December 31, 2016 and 2015, respectively, and is included in other assets in the accompanying consolidated balance sheets. In March 2016, the Company received a cash dividend of $2.3 million from Laser Quantum. The summarized financial information for Laser Quantum is as follows (in thousands): Year Ended December 31, 2016 2015 2014 Revenue $ 23,526 $ 25,599 $ 23,013 Income from operations $ 5,537 $ 7,362 $ 7,434 Net income $ 5,389 $ 6,925 $ 6,627 December 31, 2016 2015 Total assets (1) $ 25,043 $ 30,159 Total liabilities $ 1,556 $ 2,552 (1) Total assets at December 31, 2016 and 2015 included cash and cash equivalents of $15.5 million and $21.0 million, respectively.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts based on the Company’s best estimate of probable credit losses resulting from the inability of the Company’s customers to make required payments. The Company determines the allowance based on a variety of factors, including the age of amounts outstanding relative to their contractual due date, specific customer factors, and other known risks and economic trends. Charges related to the allowance for doubtful accounts are included as selling, general and administrative expenses and are recorded in the period that the outstanding receivables are determined to be uncollectible. Account balances are charged off against the allowance when the Company believes it is probable that the receivable will not be recovered. For the years ended December 31, 2016, 2015 and 2014, changes in the allowance for doubtful accounts were as follows (in thousands): 2016 2015 2014 Balance at beginning of year $ 500 $ 282 $ 575 Provision charged to selling, general and administrative expenses 135 285 30 Allowance resulting from acquisitions 15 5 52 Write-offs, net of recoveries of amounts previously reserved (82 ) (29 ) (352 ) Divestiture of JK Lasers — (30 ) — Exchange rate changes (3 ) (13 ) (23 ) Balance at end of year $ 565 $ 500 $ 282
Inventories	Inventories Inventories, which include materials and conversion costs, are stated at the lower of cost or market, using the first-in, first-out method. Market is defined as replacement cost for raw materials and net realizable value for other inventories. Demo inventory is recorded at the lower of cost or its net realizable value. The Company periodically reviews quantities of inventories on hand and compares these amounts to the expected use of each product. The Company records a charge to cost of revenue for the amount required to reduce the carrying value of inventory to net realizable value. Costs associated with the procurement of inventories such as inbound freight charges, purchasing and receiving costs are capitalized in inventory on the consolidated balance sheets.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are recorded at cost, adjusted for any impairment, less accumulated depreciation. The Company uses the straight-line method to calculate the depreciation of its fixed assets over their estimated useful lives. Estimated useful lives range from 3 to 30 years for buildings and building improvements and 3 to 10 years for machinery and equipment. Leasehold improvements are depreciated over the lesser of their useful lives or the lease terms, including any renewal period options that are reasonably assured of being exercised. Repairs and maintenance costs are expensed as incurred. Certain costs to develop software for internal use are capitalized when the criteria under Accounting Standards Codification (“ASC”) 350-40, “Internal-Use Software,” are met. Lease arrangements meeting the criteria of ASC 840-30, “Leases – Capital Leases,” are capitalized based on the present value of future minimum lease payments and depreciated over the term of the lease. In 2016, the Company sold its facilities in Chatsworth, California and Orlando, Florida and recognized a gain of $1.7 million as part of restructuring, acquisition and divestiture related costs.
Goodwill, Intangibles and Long-Lived Assets	Goodwill, Intangibles and Long-Lived Assets Goodwill represents the excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities acquired in a business combination. Allocations of the purchase price are based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed are recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets are based on valuations using an income approach, with estimates and assumptions provided by management of the acquired companies and the Company. Goodwill and indefinite-lived intangibles are not amortized but are assessed for impairment at least annually to ensure their current fair values exceed their carrying values. The Company’s most significant intangible assets are patents and acquired technologies, customer relationships, trademarks and trade names. All definite-lived intangible assets are amortized over the periods in which their economic benefits are expected to be realized. The Company reviews the useful life assumptions, including the classification of certain intangible assets as “indefinite-lived”, on a periodic basis to determine if changes in circumstances warrant revisions to them. Costs associated with patent and intellectual property applications, renewals or extensions are expensed as incurred. The Company evaluates its goodwill, intangible assets and other long-lived assets for impairment at the reporting unit level which is generally at least one level below our reportable segments.
Impairment Charges	Impairment Charges Impairment analyses of goodwill and indefinite-lived intangible assets are conducted in accordance with ASC 350, “Intangibles —Goodwill and Other”. This guidance specifies that goodwill and other intangible assets must be periodically tested for impairment. The Company tests its goodwill balances annually as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company utilizes a quantitative analysis to test goodwill for impairment. This two-step approach requires a comparison of the carrying value of each of the Company’s reporting units to the fair value of these reporting units. The fair value of a reporting unit is primarily based on a discounted cash flow (“DCF”) method with a weighted average cost of capital. If the carrying value of a reporting unit exceeds its fair value, the Company calculates the implied fair value of the reporting unit’s goodwill and compares it to the carrying value. If the carrying value of the goodwill exceeds its implied fair value, an impairment charge is recorded for the difference. The Company assesses indefinite-lived intangible assets for impairment on an annual basis as of the beginning of the second quarter, and more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company will also reassess the continuing classification of these indefinite-lived intangible assets as indefinite-lived when circumstances change such that the useful life may no longer be indefinite. The fair values of the Company’s indefinite-lived intangible assets are determined using the relief from royalty method, based on forecasted revenues. If the fair value of an indefinite-lived intangible asset is less than its carrying value, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset. The carrying amounts of definite-lived long-lived assets are reviewed for impairment whenever changes in events or circumstances indicate that their carrying values may not be recoverable. The recoverability of the carrying value is generally determined by comparison of the asset group’s carrying value to its undiscounted future cash flows. When this test indicates the potential for impairment, a fair value assessment is performed. Once an impairment is determined and measured, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.
Revenue Recognition	Revenue Recognition The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, price is fixed or determinable, and collection of the resulting receivable is reasonably assured. Revenue recognition requires judgment and estimates, which may affect the amount and timing of revenue recognized in any given period. The Company’s revenue transactions are comprised of both single-element and multiple-element transactions. Multiple-element transactions may include two or more products, and occasionally non-standard/extended warranties or preventative maintenance plans. For multiple-element transactions, revenue is generally recognized upon shipment, using the relative selling price method in accordance with ASC 605-25, “Revenue – Multiple-Element Arrangements”. Single-element transactions are typically recognized upon shipment at their contractually stated prices. The Company generally provides warranties for its products. The standard warranty period is typically 12 months to 24 months for the Photonics and Precision Motion segments and 12 months to 36 months for the Vision segment. The standard warranty period for product sales is accounted for under the provisions of ASC 450 “Contingencies,” as the Company has the ability to ascertain the likelihood of the liability, and can estimate the amount of the liability. A provision for the estimated cost related to warranty is recorded to cost of revenue at the time revenue is recognized. The Company’s estimate of costs to service the warranty obligations is based on historical experience and expectations of future conditions. To the extent that the Company experiences warranty claims or costs associated with servicing those claims that differ from the original estimates, revisions to the estimated warranty liability are recorded at that time. The Company occasionally sells optional non-standard/extended warranty services and preventative maintenance contracts to customers. The Company accounts for these agreements in accordance with provisions of ASC 605-20-25-3, “Separately Priced Extended Warranty and Product Maintenance Contracts,” under which it recognizes the separately priced extended warranty and preventative maintenance fees ratably over the associated period. At the request of its customers, may perform professional services, generally for the maintenance and repair of products previously sold to those customers. These services are usually in the form of time and materials based contracts which are short in duration. Revenue for time and materials services is recorded at the completion of services requested under a customer’s purchase order.
Research and Development and Engineering Costs	Research and Development and Engineering Costs Research and development and engineering (“R&D”) expenses are primarily comprised of employee related expenses and cost of materials for R&D projects. These costs are expensed as incurred.
Share-Based Compensation	Share-Based Compensation The Company records the expense associated with share-based compensation awards to employees and directors based on the fair value of awards as of the grant date. For stock-based compensation awards that vest over time based on employment, the associated expenses are recognized in the consolidated statements of operations ratably over the vesting period of the award, net of estimated forfeitures. For performance-based restricted stock units, stock-based compensation expenses are recognized ratably over the vesting period when it is probable that the performance targets are expected to be achieved based on management’s projections. Management’s projections are revised, if necessary, in subsequent periods when underlying factors change the evaluation of the probability of achieving the performance targets. Accordingly, share-based compensation expense associated with performance-based restricted stock units may differ significantly from period to period based on changes to the probability of achieving performance targets.
Shipping & Handling Costs	Shipping & Handling Costs Shipping and handling costs are recorded in cost of revenue.
Advertising Costs	Advertising Costs Advertising costs are expensed to selling, general and administrative expenses as incurred and were not material for 2016, 2015 and 2014.
Restructuring, Acquisition and Divestiture Related Costs	Restructuring, Acquisition and Divestiture Related Costs The Company accounted for its restructuring activities in accordance with the provisions of ASC 420, “Exit or Disposal Cost Obligations.” The Company makes assumptions related to the amounts of employee severance benefits and related costs, the time period over which facilities will remain vacant, useful lives and residual value of long-lived assets, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation is recognized. These estimates are reviewed and revised as facts and circumstances dictate. Acquisition related costs incurred to effect a business combination, including finders’ fees, legal, valuation and other professional or consulting fees, are expensed as incurred. Acquisition related costs also include expenses recognized under earn-out agreements in connection with acquisitions. Expenses associated with divestiture activities, including legal and professional fees directly related to the completion of a business divestiture, are expensed as incurred.
Accounting for Income Taxes	Accounting for Income Taxes The asset and liability method is used to account for income taxes. Under the asset and liability method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to temporary differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. This method also requires the recognition of future tax benefits, such as net operating loss carryforwards, to the extent that it is more likely than not that such benefits will be realized. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled. A valuation allowance is established to reduce the deferred tax assets if it is more likely than not that some or all of the related tax benefits will not be realized in the future and is reassessed periodically to determine whether it is more likely than not that the tax benefits will be realized in the future and that such valuation should be released. The majority of the Company’s business activities are conducted through its subsidiaries outside of Canada. Earnings from these subsidiaries are generally indefinitely reinvested in the local businesses. Further, local laws and regulations may also restrict certain subsidiaries from paying dividends to their parents. As such, the Company generally does not accrue income taxes for the repatriation of such earnings in accordance with ASC 740, “Income Taxes.” To the extent that there are excess accumulated earnings that the Company intends to repatriate from any such subsidiaries, the Company recognizes deferred tax liabilities on such foreign earnings. The Company assesses its income tax positions and records tax benefits for all years subject to examination based on the evaluation of the facts, circumstances, and information available at each reporting date. For those tax positions with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information, the Company records a tax benefit. For those income tax positions that are not likely to be sustained, no tax benefit is recognized in the consolidated financial statements. The Company recognizes interest and penalties related to uncertain tax positions as part of the provision for income taxes.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Goodwill Impairment In January 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-04, “Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment,” which simplifies the accounting for goodwill impairment. The amendment in ASU 2017-04 removes Step-two of the goodwill impairment test, which requires a hypothetical purchase price allocation. ASU 2017-04 will become effective prospectively for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, with early adoption permitted. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Business Combinations In January 2017, the FASB issued ASU 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business,” which provides further clarification of the definition of a business with the objective to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets versus businesses. The amendments in ASU 2017-01 provide a screen to determine when a set of assets and activities is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen is expected to reduce the number of transactions that need to be further evaluated. If the screen is not met, the amendments in ASU 2017-01 (i) require that to be considered a business, a set of assets and liabilities acquired must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output; and (ii) remove the evaluation of whether a market participant could replace missing elements. ASU 2017-01 will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Early adoption is permitted for transactions for which the acquisition date occurs before the issuance date of ASU 2017-01, only when the transaction has not been reported in financial statements that have been issued or made available for issuance. ASU 2017-01 should be applied using a prospective transition method for each period presented. The Company early adopted this pronouncement for a transaction that occurred in December 2016. Statement of Cash Flows Classification of Certain Cash Receipts and Cash Payments In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments,” which provides further clarification on eight cash flow classification issues. The standard further clarifies the classification of the following: (i) debt prepayment or debt extinguishment costs; (ii) settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; (iii) contingent consideration payments made after a business combination; (iv) proceeds from the settlement of insurance claims; (v) proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; (vi) distributions received from equity method investees; (vii) beneficial interests in securitization transactions; and (viii) separately identifiable cash flows and application of the predominance principle. ASU 2016-15 will become effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, with early adoption permitted. ASU 2016-15 should be applied using a retrospective transition method for each period presented. The Company is currently evaluating the impact of the new standard on our consolidated financial statements. Share-Based Compensation In March 2016, the FASB issued 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 income tax effects resulting from the settlement of stock-based awards as income tax provision or benefit in the income statement in the reporting period in which they occur. In addition, ASU 2016-09 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. ASU 2016-09 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, ASU 2016-09 allows companies to make an accounting policy election to either estimate the number of awards that are expected to vest, consistent with existing 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 adopted ASU 2016-09 during the second quarter of 2016, which required no retrospective adjustments to the consolidated financial statements. The adoption of ASU 2016-09 had an impact of less than $0.1 million on income from continuing operation on the Company’s consolidated statements of operations for the year ended December 31, 2016. The adoption of ASU 2016-09 had no impact on the prior year 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, with early adoption permitted. The Company adopted this pronouncement in the fourth quarter of 2016. The adoption of ASU 2014-15 had no impact on our 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 and plans to adopt the standard beginning in the first quarter of 2018.

Summary of Significant Accoun27

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Changes in Allowance for Doubtful Accounts	For the years ended December 31, 2016, 2015 and 2014, changes in the allowance for doubtful accounts were as follows (in thousands): 2016 2015 2014 Balance at beginning of year $ 500 $ 282 $ 575 Provision charged to selling, general and administrative expenses 135 285 30 Allowance resulting from acquisitions 15 5 52 Write-offs, net of recoveries of amounts previously reserved (82 ) (29 ) (352 ) Divestiture of JK Lasers — (30 ) — Exchange rate changes (3 ) (13 ) (23 ) Balance at end of year $ 565 $ 500 $ 282
Laser Quantum
Summary of Financial Information of Laser Quantum - Income Statement	The summarized financial information for Laser Quantum is as follows (in thousands): Year Ended December 31, 2016 2015 2014 Revenue $ 23,526 $ 25,599 $ 23,013 Income from operations $ 5,537 $ 7,362 $ 7,434 Net income $ 5,389 $ 6,925 $ 6,627
Summary of Financial Information of Laser Quantum - Balance Sheet	December 31, 2016 2015 Total assets (1) $ 25,043 $ 30,159 Total liabilities $ 1,556 $ 2,552 (1) Total assets at December 31, 2016 and 2015 included cash and cash equivalents of $15.5 million and $21.0 million, respectively.

Business Combinations (Tables)

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2016
Reach Technology Inc.
Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation	The final purchase price allocation is as follows (in thousands): Amount Cash $ 238 Accounts receivable 991 Inventory 1,611 Prepaid expenses and other current assets 12 Intangible assets 3,953 Goodwill 4,715 Total assets acquired 11,520 Accounts payable 280 Other liabilities 148 Deferred tax liabilities 1,474 Total liabilities assumed 1,902 Total assets acquired, net of liabilities assumed 9,618 Less: cash acquired 238 Total purchase price, net of cash acquired $ 9,380
Fair Value of Intangible Assets	The fair value of intangible assets is comprised of the following (dollar amounts in thousands): Weighted Average Estimated Fair Amortization Value Period Customer relationships $ 2,770 15 years Developed technology 500 7 years Trademarks and trade names 258 10 years Backlog 425 1 year Total $ 3,953
Skyetek, Lincoln Laser and Applimotion
Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation	The final purchase price for Skyetek, Lincoln Laser and Applimotion was allocated as follows (in thousands): Amount Cash $ 331 Accounts receivable 3,166 Inventory 3,544 Prepaid expenses and other current assets 148 Property and equipment 3,220 Intangible assets 11,370 Goodwill 12,668 Other assets 10 Total assets acquired 34,457 Accounts payable 1,681 Other liabilities 1,197 Deferred tax liabilities 2,308 Total liabilities assumed 5,186 Total assets acquired, net of liabilities assumed 29,271 Less: cash acquired 331 Total purchase price, net of cash acquired 28,940 Less: contingent consideration 3,459 Net cash used for acquisition of businesses $ 25,481
Fair Value of Intangible Assets	The fair value of intangible assets for Skyetek, Lincoln Laser and Applimotion is comprised of the following (dollar amounts in thousands): Weighted Average Estimated Fair Amortization Value Period Customer relationships $ 4,266 12 years Developed technology 4,993 10 years Trademarks and trade names 593 9 years Non-compete covenant 684 4 years Backlog 834 1 year Total $ 11,370
JADAK Acquisition
Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation	The final purchase price allocation is as follows (in thousands): Amount Cash $ 1,140 Accounts receivable 7,907 Inventory 6,865 Property and equipment 904 Intangible assets 40,250 Goodwill 44,584 Other assets 2,064 Total assets acquired 103,714 Accounts payable 3,057 Other liabilities 2,380 Deferred tax liabilities 3,481 Total liabilities assumed 8,918 Total assets acquired and liabilities assumed 94,796 Less: cash acquired 1,140 Total purchase price, net of cash acquired $ 93,656
Fair Value of Intangible Assets	The fair value of JADAK intangible assets is comprised of the following (in thousands): Weighted Average Estimated Fair Amortization Value Period Customer relationships $ 23,570 20 years Developed technology 10,910 10 years Trademarks and trade names 2,130 10 years Backlog 1,810 1 year Non-compete covenant 1,830 5 years Total $ 40,250

Discontinued Operations and D29

Discontinued Operations and Divestitures (Tables)	12 Months Ended
	Dec. 31, 2016
Discontinued Operations And Disposal Groups [Abstract]
Operating Results Reported as Discontinued Operations	The following table presents the operating results which are reported as discontinued operations in the Company’s consolidated statements of operations (in thousands): Year Ended December 31, 2015 2014 Revenue from discontinued operations $ — $ 10,514 Loss from discontinued operations, before income tax $ (13 ) $ (8,059 ) Loss from discontinued operations, net of tax $ (13 ) $ (5,607 ) Loss on disposal of discontinued operations, net of tax $ — $ (1,726 )

Accumulated Other Comprehensi30

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	Changes in accumulated other comprehensive income (loss) is as follows (in thousands): Total accumulated other Cumulative comprehensive translation Pension income (loss) adjustment liability Balance at December 31, 2013 $ (6,342 ) $ 1,353 $ (7,695 ) Other comprehensive income (10,488 ) (6,968 ) (3,520 ) Amounts reclassified from other comprehensive income (loss) (1) 374 — 374 Balance at December 31, 2014 $ (16,456 ) $ (5,615 ) $ (10,841 ) Other comprehensive loss (3,249 ) (4,083 ) 834 Amounts reclassified from other comprehensive income (loss) (1) 875 — 875 Balance at December 31, 2015 $ (18,830 ) $ (9,698 ) $ (9,132 ) Other comprehensive income (9,611 ) (7,524 ) (2,087 ) Amounts reclassified from other comprehensive income (loss) (1) 726 — 726 Balance at December 31, 2016 $ (27,715 ) $ (17,222 ) $ (10,493 ) (1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

Goodwill, Intangible Assets a31

Goodwill, Intangible Assets and Impairment Charges (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill And Intangible Assets Disclosure [Abstract]
Summary of Changes in Goodwill	The following table summarizes changes in goodwill during the year ended December 31, 2016 (in thousands): December 31, 2016 Balance at beginning of year $ 103,456 Net working capital adjustment of Lincoln Laser acquisition (43 ) Goodwill acquired from Reach acquisition 4,715 Balance at end of year $ 108,128
Goodwill by Reportable Segment	Goodwill by reportable segment as of December 31, 2016 is as follows (in thousands): Reportable Segment Photonics Vision Precision Motion Total Goodwill $ 136,278 $ 89,116 $ 33,963 $ 259,357 Accumulated impairment of goodwill (102,461 ) (31,722 ) (17,046 ) (151,229 ) Total $ 33,817 $ 57,394 $ 16,917 $ 108,128 Goodwill by reportable segment as of December 31, 2015 is as follows (in thousands): Reportable Segment Photonics Vision 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 December 31, 2016 and 2015, respectively, are summarized as follows (dollar amounts in thousands): December 31, 2016 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Life (Years) Amortizable intangible assets: Patents and acquired technologies $ 84,742 $ (67,902 ) $ 16,840 7.6 Customer relationships 69,554 (42,934 ) 26,620 12.9 Customer backlog 622 (540 ) 82 0.9 Non-compete covenant 2,514 (1,419 ) 1,095 2.0 Trademarks and trade names 10,709 (6,630 ) 4,079 8.3 Amortizable intangible assets 168,141 (119,425 ) 48,716 10.2 Non-amortizable intangible assets: Trade names 13,027 — 13,027 Total $ 181,168 $ (119,425 ) $ 61,743 December 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Life (Years) Amortizable intangible assets: Patents and acquired technologies $ 82,821 $ (66,297 ) $ 16,524 7.7 Customer relationships 67,168 (36,914 ) 30,254 13.6 Customer backlog 2,644 (2,589 ) 55 1.0 Non-compete covenant 2,514 (882 ) 1,632 3.2 Trademarks and trade names 10,711 (5,934 ) 4,777 9.1 Amortizable intangible assets 165,858 (112,616 ) 53,242 11.0 Non-amortizable intangible assets: Trade names 13,027 — 13,027 Total $ 178,885 $ (112,616 ) $ 66,269
Fair Value of Intangible Assets Acquired	The fair value of intangible assets acquired is comprised of the following (dollar amounts in thousands): Weighted Average Estimated Fair Amortization Value Period Developed technology $ 3,980 10 years Total $ 3,980
Amortization Expense of Intangible Assets	Amortization expense is as follows (in thousands): Year Ended December 31, 2016 2015 2014 Amortization expense – cost of revenue $ 4,164 $ 4,712 $ 6,143 Amortization expense – operating expenses 8,251 7,611 10,262 Total amortization expense $ 12,415 $ 12,323 $ 16,405
Estimated Future Amortization Expense	Estimated future amortization expense for each of the five succeeding years and thereafter is as follows (in thousands): Year Ending December 31, Cost of Revenue Operating Expenses Total 2017 $ 3,658 $ 7,384 $ 11,042 2018 2,274 6,713 8,987 2019 2,083 4,691 6,774 2020 1,931 2,718 4,649 2021 1,767 2,290 4,057 Thereafter 5,127 8,080 13,207 Total $ 16,840 $ 31,876 $ 48,716

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes the fair values of our assets and liabilities measured at fair value on a recurring basis as of December 31, 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 $ 9,569 $ 9,569 $ — $ — Liabilities Contingent consideration - Current $ 2,775 $ — $ — $ 2,775 Contingent consideration - Long-term 2,381 — — 2,381 $ 5,156 $ — $ — $ 5,156 The following table summarizes the fair values of our assets and liabilities measured at fair value on a recurring basis 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 - Long-term $ 3,889 $ — $ — $ 3,889
Changes in Fair Value of Level 3 Contingent Consideration	Changes in the fair value of our Level 3 contingent consideration for the years ended December 31, 2016 and 2015 were as follows (in thousands): Contingent Consideration Balance at December 31, 2014 $ — Acquisition of Applimotion 965 Fair value adjustment of Applimotion 430 Acquisition of Lincoln Laser 2,344 Acquisition of Skyetek 150 Balance at December 31, 2015 $ 3,889 Fair value adjustment of Applimotion 2,178 Fair value adjustment of Lincoln Laser (911 ) Balance at December 31, 2016 $ 5,156
Quantitative Information Associated with Fair Value Measurement of Company's Level 3 Financial Instrument	The following table provides quantitative information associated with the fair value measurement of the Company’s Level 3 liabilities: Liability December 31, 2016 Fair Value (in thousands) Valuation Technique Unobservable Inputs Percentage Applied Contingent consideration (Applimotion) (1) $3,573 Monte Carlo simulation Historical and projected revenues for fiscal years 2015 to 2017 Revenue volatility Cost of debt WACC N/A 41.3% 3.49% 11.0% Contingent consideration (Lincoln Laser) (2) $1,433 N/A Historical revenues 100% (1) Based on Applimotion’s fiscal 2015 and 2016 revenue results, the Company will pay $1.2 million contingent consideration in the first quarter of 2017. (2) The Company will pay $1.4 million as the final Lincoln Laser contingent consideration payment in the first quarter of 2017.

Earnings (Loss) per Common Sh33

Earnings (Loss) per Common Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings (Loss) Per Share	The following table sets forth the computation of basic and diluted earnings (loss) per share (in thousands, except per share amounts): Year Ended December 31, 2016 2015 2014 Numerators: Income (loss) from continuing operations $ 22,003 $ 35,628 $ (16,909 ) Consolidated loss from discontinued operations — (13 ) (7,333 ) Less: income attributable to noncontrolling interest — — (10 ) Loss from discontinued operations attributable to Novanta Inc. — (13 ) (7,343 ) Net income (loss) attributable to Novanta Inc. $ 22,003 $ 35,615 $ (24,252 ) Denominators: Weighted average common shares outstanding— basic 34,694 34,579 34,352 Dilutive potential common shares 220 248 — Weighted average common shares outstanding— diluted 34,914 34,827 34,352 Antidilutive common shares excluded from above 85 — 439 Basic Earnings (Loss) per Common Share: From continuing operations $ 0.63 $ 1.03 $ (0.49 ) From discontinued operations $ — $ (0.00 ) $ (0.21 ) Basic earnings (loss) per share attributable to Novanta Inc. $ 0.63 $ 1.03 $ (0.70 ) Diluted Earnings (Loss) per Common Share: From continuing operations $ 0.63 $ 1.02 $ (0.49 ) From discontinued operations $ — $ (0.00 ) $ (0.21 ) Diluted earnings (loss) per share attributable to Novanta Inc. $ 0.63 $ 1.02 $ (0.70 )

Supplementary Balance Sheet I34

Supplementary Balance Sheet Information (Tables)	12 Months Ended
	Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Inventories	Inventories December 31, 2016 2015 Raw materials $ 39,822 $ 38,511 Work-in-process 8,012 10,138 Finished goods 9,511 9,266 Demo and consigned inventory 2,400 1,651 Total inventories $ 59,745 $ 59,566
Property, Plant and Equipment, net	Property, Plant and Equipment, net December 31, 2016 2015 Cost: Land, buildings and improvements $ 38,384 $ 48,154 Machinery and equipment 52,136 43,376 Total cost 90,520 91,530 Accumulated depreciation (55,099 ) (50,980 ) Property, plant and equipment, net $ 35,421 $ 40,550
Summary of Depreciation Expense on Property, Plant and Equipment, Including Demo Units and Assets under Capital Leases	The following table summarizes depreciation expense on property, plant and equipment, including demo units and assets under capital leases (in thousands): Year Ended December 31, 2016 2015 2014 Depreciation expense $ 8,558 $ 7,873 $ 8,016
Summary of Total Accumulated Depreciation on Assets under Capital Leases	The following table summarizes total accumulated depreciation on assets under capital leases as of the dates indicated (in thousands): December 31, 2016 2015 Accumulated depreciation on assets under capital leases $ 4,950 $ 3,798
Accrued Expenses and Other Current Liabilities	The following table summarizes accrued expenses and other current liabilities as of the dates indicated (in thousands): December 31, 2016 2015 Accrued compensation and benefits $ 9,647 $ 7,357 Accrued warranty 3,142 3,335 Accrued restructuring 1,371 1,652 Accrued professional services 1,237 1,039 Accrued contingent considerations 2,775 — Customer deposits 1,164 628 Other 7,612 7,171 Total $ 26,948 $ 21,182
Accrued Warranty	The following table summarizes accrued warranty activities for the periods indicated (in thousands): Year Ended December 31, 2016 2015 2014 Balance at beginning of year $ 3,335 $ 3,044 $ 3,315 Provision charged to cost of revenue 1,673 2,025 1,684 Acquisition related warranty accrual 23 132 90 Use of provision (1,849 ) (1,454 ) (2,003 ) Divestiture of JK Lasers — (389 ) — Foreign currency exchange rate changes (40 ) (23 ) (42 ) Balance at end of year $ 3,142 $ 3,335 $ 3,044
Summary of Other Long Term Liabilities	The following table summarizes other long term liabilities as of the dates indicated (in thousands ): December 31, 2016 2015 Capital lease obligations $ 8,111 $ 9,173 Accrued pension liabilities 5,957 3,693 Accrued contingent considerations 2,381 3,889 Other 2,264 2,690 Total 18,713 19,445

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2016
Debt Disclosure [Abstract]
Debt	Debt consisted of the following (in thousands): December 31, 2016 2015 Senior Credit Facilities – term loan $ 7,500 $ 7,500 Less: unamortized debt issuance costs (134 ) (115 ) Total current portion of long-term debt $ 7,366 $ 7,385 Senior Credit Facilities – term loan $ 63,750 $ 20,000 Senior Credit Facilities – revolving credit facility 10,000 70,000 Less: unamortized debt issuance costs (3,196 ) (1,574 ) Total long-term debt $ 70,554 $ 88,426 Total Senior Credit Facilities $ 77,920 $ 95,811
Principal Repayments on Outstanding Term Loan	The principal on the Company’s outstanding term loan matures as follows (in thousands): Term Loan 2017 $ 7,500 2018 7,500 2019 7,500 2020 7,500 2021 41,250 Total debt repayments $ 71,250

Capital Stock and Share-Based36

Capital Stock and Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 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 thousands): Year Ended December 31, 2016 2015 2014 Selling, general and administrative $ 3,920 $ 3,960 $ 3,967 Research and development and engineering 117 170 196 Cost of revenue 256 257 166 Restructuring, acquisition and divestiture related costs — (322 ) 322 Total share-based compensation expense $ 4,293 $ 4,065 $ 4,651
Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model	The fair value of stock options granted during 2016 was estimated as of the grant date using the Black-Scholes valuation model with the following assumptions: 2016 Expected option term in year (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 restricted and deferred stock units issued and outstanding under the Amended and Restated 2010 Incentive Plan during the year ended December 31, 2016: Restricted and Deferred Stock Units (In thousands) Weighted Average Grant Date Fair Value Weighted Average Remaining Vesting Period (in years) Aggregate Intrinsic Value (1) (In thousands) Unvested at December 31, 2015 619 $ 12.32 Granted 531 $ 14.29 Vested (373 ) $ 12.01 Forfeited (142 ) $ 13.11 Unvested at December 31, 2016 635 $ 13.97 2.07 years $ 13,335 Expected to vest as of December 31, 2016 608 $ 14.00 2.07 years $ 12,767 (1) The aggregate intrinsic value is calculated based on the fair value of $21.00 per share of the Company’s common stock on December 31, 2016 due to the fact that the restricted stock units carry a $0 purchase price.
Performance Stock Units Issued and Outstanding	The table below summarizes activities relating to PSUs issued and outstanding under the Amended and Restated 2010 Incentive Plan during the year ended December 31, 2016: Performance Stock Units (2) (In thousands) Weighted Average Grant Date Fair Value Weighted Average Remaining Vesting Period (in years) Aggregate Intrinsic Value (1) (In thousands) Unvested at December 31, 2015 — $ — Granted 46 $ 14.13 Vested — $ — Forfeited (17 ) $ 14.13 Unvested at December 31, 2016 29 $ 14.13 2.00 years $ 615 Expected to vest as of December 31, 2016 29 $ 14.13 2.00 years $ 615 (1) The aggregate intrinsic value is calculated based on the fair value of $21.00 per share of the Company’s common stock on December 31, 2016 due to the fact that the performance stock units carry a $0 purchase price. (2) The unvested PSUs are shown in this table at target, except for the number of shares vested, which reflect the shares earned. As of December 31, 2016, the maximum number of PSUs available to be earned is approximately 59 thousand.
Stock Options Issued and Outstanding	The table below summarizes activities relating to stock options issued and outstanding under the Amended and Restated 2010 Incentive Plan during the year ended December 31, 2016: Stock Options (In thousands) Weighted Average Exercise Price Weighted Average Remaining Contractual Term (years) Aggregate Intrinsic Value (1) (In thousands) Unvested at December 31, 2015 — $ — Granted 193 $ 14.13 Exercised (13 ) $ 14.13 Forfeited (77 ) $ 14.13 Unvested at December 31, 2016 103 $ 14.13 9.25 years $ 707 Exercisable as of December 31, 2016 — $ - - - Expected to vest as of December 31, 2016 103 $ 14.13 9.25 years $ 707 (1) The aggregate intrinsic value is calculated as the difference between the market price of $21.00 per share of the Company’s common stock on December 31, 2016 and the grant date exercise price.

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Compensation And Retirement Disclosure [Abstract]
Net Periodic Pension Cost	The net periodic pension cost consisted of the following components (in thousands): Year Ended December 31, 2016 2015 2014 Components of the net periodic pension cost: Interest cost $ 1,232 $ 1,340 $ 1,589 Expected return on plan assets (1,566 ) (1,844 ) (1,958 ) Amortization of actuarial losses 726 875 374 Net periodic pension cost $ 392 $ 371 $ 5
Actuarial Assumptions used to Compute net Periodic Pension Cost and Funded Status	The actuarial assumptions used to compute the net periodic pension cost for the years ended December 31, 2016, 2015 and 2014, respectively, were as follows: Year Ended December 31, 2016 2015 2014 Weighted-average discount rate 3.8 % 3.5 % 4.6 % Weighted-average long-term rate of return on plan assets 5.3 % 5.6 % 5.9 % The actuarial assumptions used to compute the benefit obligations as of December 31, 2016 and 2015, respectively, were as follows: December 31, 2016 2015 Weighted-average discount rate 2.6 % 3.8 % Rate of inflation 3.0 % 2.8 %
Reconciliation of Benefit Obligations and Plan Assets of U.K. Plan	The following table provides a reconciliation of benefit obligations and plan assets of the U.K. Plan (in thousands): December 31, 2016 2015 Change in benefit obligation: Projected benefit obligation at beginning of year $ 35,914 $ 39,421 Interest cost 1,232 1,340 Actuarial (gains) losses 7,425 (2,083 ) Benefits paid (809 ) (798 ) Foreign currency exchange rate changes (6,501 ) (1,966 ) Projected benefit obligation at end of year $ 37,261 $ 35,914 Accumulated benefit obligation at end of year $ 37,261 $ 35,914 Change in plan assets: Fair value of plan assets at beginning of year $ 32,374 $ 33,610 Actual return on plan assets 4,522 342 Employer contributions 868 955 Benefits paid (809 ) (798 ) Foreign currency exchange rate changes (5,651 ) (1,735 ) Fair value of plan assets at end of year $ 31,304 $ 32,374 Funded status at end of year $ (5,957 ) $ (3,540 ) Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost: Net actuarial losses at beginning of year $ (9,874 ) $ (11,890 ) Net actuarial gains (losses) during the year (4,469 ) 581 Amounts reclassified from accumulated other comprehensive income to income before income taxes 726 875 Foreign currency exchange rate changes 1,920 560 Net actuarial losses at end of year $ (11,697 ) $ (9,874 ) Amounts expected to be amortized from accumulated other comprehensive loss into net periodic pension cost over the next fiscal year consists of: Net actuarial loss $ 1,148 $ 794 The funded status of the U.K. Plan is included in other long term liabilities in the accompanying consolidated balance sheets.
Expected Future Benefit Payments	The following table reflects the total expected benefit payments to plan participants and have been estimated based on the same assumptions used to measure the Company’s benefit obligations as of December 31, 2016 (in thousands): Amount 2017 $ 875 2018 725 2019 1,048 2020 1,205 2021 1,371 2022-2026 7,667 Total $ 12,891
Summary of Fair Value of Plan Assets by Asset Category	The following table summarizes the fair values of Plan assets by asset category as of December 31, 2016 (in thousands): Asset Category Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Other Unobservable Inputs (Level 3) Not Subject to Leveling (4) Mutual Funds: Balanced (1) $ 23,317 $ — $ — $ — $ 23,317 Growth (2) 3,239 — — — 3,239 Fixed income (3) 4,512 — — — 4,512 Cash 236 236 — — — Total $ 31,304 $ 236 $ — $ — $ 31,068 (1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (34%), bonds (36%), other assets (27%) and cash (3%). (2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (59%), bonds (16%), other assets (22%) and cash (3%). (3) This class comprises a diversified portfolio of global investments which seeks fixed income and is allocated on a weighted average basis as follows: bonds (93%), other assets (1%) and cash (6%). (4) In 2016, the Company adopted ASU 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent).” As a result of the adoption, pension plan assets measured using the net asset value per share (or its equivalent) are presented as “Not Subject to Leveling” in the table above. The following table summarizes the fair values of Plan assets by asset category as of December 31, 2015 (in thousands): Asset Category Fair Value Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Other Unobservable Inputs (Level 3) Not Subject to Leveling (3) Mutual Funds: Balanced (1) $ 15,611 $ — $ — $ — $ 15,611 Growth (2) 16,583 — — — 16,583 Cash 180 180 — — — Total $ 32,374 $ 180 $ — $ — $ 32,194 (1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (52%), bonds (24%), other assets (9%) and cash (15%). (2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (12%), other assets (9%), and cash (12%). (3) In 2016, the Company adopted ASU 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent).” As a result of the adoption, pension plan assets measured using the net asset value per share (or its equivalent) are presented as “Not Subject to Leveling” in the table above.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Components of Income (Loss) from Continuing Operations	Components of the Company’s income (loss) from continuing operations before income taxes are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Income (loss) from continuing operations before income taxes: Canada $ (1,872 ) $ (1,674 ) $ (20,212 ) U.S. 20,422 23,298 (9,661 ) Other 13,972 24,398 11,958 Total $ 32,522 $ 46,022 $ (17,915 )
Components of Income Tax Provision (Benefit)	Components of the Company’s income tax provision (benefit) are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Current Canada $ 43 $ 96 $ 175 U.S. 9,678 8,136 3,615 Other 2,564 3,854 1,940 12,285 12,086 5,730 Deferred Canada — — — U.S. (2,378 ) (3,239 ) (6,731 ) Other 612 1,547 (5 ) (1,766 ) (1,692 ) (6,736 ) Total $ 10,519 $ 10,394 $ (1,006 )
Reconciliation of Statutory Canadian Tax rate to Effective Tax Rate	The reconciliation of the statutory Canadian tax rate to the effective tax rate related to income before income taxes from continuing operations is as follows (in thousands, except percentage data): Year Ended December 31, 2016 2015 2014 Statutory Canadian tax rate 28.50 % 27.00 % 27.00 % Expected income tax provision at Canadian statutory tax rate $ 9,269 $ 12,426 $ (4,837 ) International tax rate differences 891 304 (1,132 ) State income taxes, net 503 453 (271 ) Withholding and other taxes 441 731 421 Permanent differences 179 1,000 486 Acquisition contingent consideration adjustments 762 — — Transaction costs 649 270 8 Section 199 deduction (1,063 ) (1,188 ) (574 ) Change in valuation allowance 1,202 (612 ) 4,809 Provision to return differences (93 ) (617 ) 962 Tax credits (1,095 ) (990 ) (1,678 ) Statutory tax rate change (856 ) 95 (13 ) Uncertain tax positions (103 ) 121 134 IRS audit — (748 ) 241 JK Lasers divestiture — (1,432 ) — Goodwill impairment — — 330 Other (167 ) 581 108 Reported income tax provision (benefit) $ 10,519 $ 10,394 $ (1,006 ) Effective tax rate 32.3 % 22.6 % 5.6 %
Significant Components of Deferred Tax Assets and Liabilities	Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2016 and 2015 are as follows (in thousands): December 31, 2016 2015 Deferred tax assets: Losses $ 9,557 $ 9,985 Compensation related deductions 4,437 2,915 Tax credits 2,318 2,409 Restructuring related liabilities 471 294 Inventory 5,869 4,415 Depreciation — 503 Amortization 3,082 3,205 Warranty 1,049 1,127 Other 1,688 1,281 Total deferred tax assets 28,471 26,134 Valuation allowance on deferred tax assets (13,014 ) (12,537 ) Net deferred tax assets $ 15,457 $ 13,597 Deferred tax liabilities: Equity-method investment $ (1,370 ) $ (1,733 ) Depreciation (749 ) — Amortization (4,162 ) (2,791 ) Unrealized currency gains/losses (659 ) (1,292 ) Other (1,218 ) (345 ) Total deferred tax liabilities $ (8,158 ) $ (6,161 ) Net deferred income tax assets (liabilities) $ 7,299 $ 7,436
Reconciliation of Total Amounts of Unrecognized Tax Benefits	The reconciliation of the total amounts of unrecognized tax benefits is as follows (in thousands): Balance at December 31, 2013 $ 7,074 Additions based on tax positions related to the current year 1,180 Additions for tax positions of prior years 2,601 Reductions for tax positions of prior years (2,404 ) Reductions to tax positions resulting from a lapse of the applicable statute of limitations (2,177 ) Balance at December 31, 2014 6,274 Additions based on tax positions related to the current year 752 Additions for tax positions of prior years 78 Reductions for tax positions of prior years (626 ) Reductions to tax positions resulting from a lapse of the applicable statute of limitations (226 ) Settlements with tax authorities (762 ) Balance at December 31, 2015 5,490 Additions based on tax positions related to the current year 561 Additions for tax positions of prior years 88 Reductions for tax positions of prior years (45 ) Reductions to tax positions resulting from a lapse of the applicable statute of limitations (842 ) Settlements with tax authorities (290 ) Balance at December 31, 2016 $ 4,962
Income Tax Returns to be Reviewed	The Company’s income tax returns may be reviewed by tax authorities in the following countries for the following periods under the appropriate statute of limitations: United States 2013 - Present Canada 2011 - Present United Kingdom 2015 - Present Germany 2011 - Present Netherlands 2011 - Present China 2007 - Present Japan 2012 - Present

Restructuring, Acquisition an39

Restructuring, Acquisition and Divestiture Related Costs (Tables)	12 Months Ended
	Dec. 31, 2016
Restructuring And Related Activities [Abstract]
Schedule Of Restructuring And Related Cost	The following table summarizes restructuring, acquisition and divestiture related costs recorded in the accompanying consolidated statements of operations (in thousands): Year Ended December 31, 2016 2015 2014 2016 restructuring $ 3,049 $ 3,148 $ — 2015 restructuring — 1,484 — 2013 restructuring — — 25 2011 restructuring (79 ) 1,208 389 Total restructuring charges $ 2,970 $ 5,840 $ 414 Acquisition and related charges $ 4,975 $ 1,301 $ 1,521 Divestiture related charges — 1,113 — Total acquisition and divestiture related charges $ 4,975 $ 2,414 $ 1,521 Total restructuring, acquisition and divestiture related costs $ 7,945 $ 8,254 $ 1,935
Summary of Restructuring Costs for Each Segment and Unallocated Corporate Costs	The following table summarizes restructuring costs associated with the 2016 restructuring program for each segment and unallocated corporate costs (in thousands): Year Ended Year Ended Cumulative Costs as of December 31, 2016 December 31, 2015 December 31, 2016 Photonics $ 813 $ 55 $ 868 Vision 1,862 2,200 4,062 Precision Motion 106 833 939 Unallocated Corporate and Shared Services 268 60 328 Total $ 3,049 $ 3,148 $ 6,197 The following table summarizes the total costs for each segment and unallocated corporate costs related to the 2015 restructuring plan (in thousands): Year Ended December 31, 2015 Photonics $ 542 Vision 525 Precision Motion 79 Unallocated Corporate and Shared Services 338 Total $ 1,484 The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2011 restructuring plan (in thousands): Cumulative Year Ended December 31, Costs as of 2016 2015 2014 December 31, 2016 Photonics $ (188 ) $ — $ (106 ) $ 1,751 Vision — — — 48 Precision Motion — — — 122 Unallocated Corporate and Shared Services 109 1,208 495 3,262 Total $ (79 ) $ 1,208 $ 389 $ 5,183
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 charges recorded in the accompanying consolidated balance sheets (in thousands): Total Severance Facility Depreciation Other (b) Balance at December 31, 2014 $ 231 $ 102 $ 108 $ — $ 21 Restructuring charges 5,840 3,918 441 1,082 399 Cash payments (3,126 ) (2,668 ) (156 ) — (302 ) Non-cash write-offs and other adjustments (1,063 ) 6 13 (1,082 ) — Balance at December 31, 2015 1,882 1,358 406 — 118 Restructuring charges (a) 4,929 2,738 777 616 798 Reserves reversed (322 ) (322 ) — — — Cash payments (4,181 ) (3,170 ) (104 ) — (907 ) Non-cash write-offs and other adjustments (572 ) 7 32 (616 ) 5 Balance at December 31, 2016 $ 1,736 $ 611 $ 1,111 $ — $ 14 (a) Excludes $1.6 million of gain on sale of the Chatsworth, California facility. (b) Other restructuring charges mainly related to consulting fees and relocation costs.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Schedule of Gross Assets under Capital Lease	As of December 31, 2016 and 2015, gross assets under capital lease were as follows (in thousands): 2016 2015 Land, buildings and improvements $ 9,133 $ 9,133 Machinery and equipment 4,026 4,026 Total gross assets under capital lease $ 13,159 $ 13,159
Future Minimum Lease Payments Under Operating and Capital Leases	Future Lease Payments Future minimum lease payments under operating and capital leases expiring subsequent to December 31, 2016, including operating leases associated with facilities that have been vacated as a result of the Company’s restructuring actions, are as follows (in thousands): Year Ended December 31, Operating Lease Capital Lease (1) 2017 $ 4,519 $ 1,294 2018 3,202 864 2019 1,913 887 2020 240 907 2021 125 907 Thereafter 4,267 7,232 Total minimum lease payments $ 14,266 $ 12,091 (1) Capital lease payments include interest payments of $3.2 million.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2016
Segment Reporting [Abstract]
Revenue, Gross Profit, Operating Income (Loss) from Continuing Operations, Depreciation and Amortization, Accounts Receivable and Inventory by Reportable Segments	Revenue, gross profit, operating income (loss) from continuing operations, depreciation and amortization, accounts receivable and inventory by reportable segments are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Revenue Photonics $ 174,158 $ 168,331 $ 177,726 Vision 122,250 124,725 122,187 Precision Motion 88,350 80,542 64,793 Total $ 384,758 $ 373,598 $ 364,706 Year Ended December 31, 2016 2015 2014 Gross Profit Photonics $ 76,696 $ 73,602 $ 74,224 Vision 47,181 48,966 48,678 Precision Motion 40,044 36,709 28,333 Unallocated Corporate and Shared Services (1,469 ) (1,387 ) (1,068 ) Total $ 162,452 $ 157,890 $ 150,167 Year Ended December 31, 2016 2015 2014 Operating Income (Loss) from Continuing Operations Photonics $ 34,825 $ 35,971 $ 33,053 Vision (1,277 ) (2,057 ) (43,079 ) Precision Motion 21,101 16,877 13,023 Unallocated Corporate and Shared Services (22,086 ) (21,858 ) (19,803 ) Total $ 32,563 $ 28,933 $ (16,806 ) Year Ended December 31, 2016 2015 2014 Depreciation and Amortization Photonics $ 6,738 $ 6,083 $ 6,481 Vision 10,402 8,599 13,254 Precision Motion 2,439 2,533 1,943 Unallocated Corporate and Shared Services 1,394 2,981 2,743 Total $ 20,973 $ 20,196 $ 24,421 December 31, 2016 2015 Accounts Receivable Photonics $ 28,886 $ 21,763 Vision 22,885 21,691 Precision Motion 11,998 13,734 Total accounts receivable $ 63,769 $ 57,188 Inventory Photonics $ 28,976 $ 29,501 Vision 20,656 19,583 Precision Motion 10,113 10,482 Total inventory $ 59,745 $ 59,566 Total segment assets $ 123,514 $ 116,754 December 31, 2016 2015 Total Assets Total segment assets 123,514 116,754 Cash and cash equivalents 68,108 59,959 Prepaid income taxes and income taxes receivable 2,058 2,510 Prepaid expenses and other current assets 5,570 5,989 Property, plant and equipment, net 35,421 40,550 Deferred tax assets 8,593 7,885 Other assets 12,502 12,673 Intangible assets, net 61,743 66,269 Goodwill 108,128 103,456 Total $ 425,637 $ 416,045
Schedule of Geographic Revenue	The Company aggregates geographic revenue based on the customer location where products are shipped. Revenue to these customers is as follows (in thousands, except percentage data): Year Ended December 31, 2016 2015 2014 Revenue % of Total Revenue % of Total Revenue % of Total United States $ 154,756 40.2 % $ 154,825 41.4 % $ 140,973 38.7 % Germany 55,940 14.5 54,743 14.7 59,029 16.2 Rest of Europe 51,705 13.4 48,277 12.9 54,308 14.9 China 44,225 11.5 38,491 10.3 40,792 11.2 Rest of Asia-Pacific 60,104 15.6 62,467 16.7 58,830 16.1 Other 18,028 4.8 14,795 4.0 10,774 2.9 Total $ 384,758 100.0 % $ 373,598 100.0 % $ 364,706 100.0 %
Summary of Long-lived Assets	Long-lived assets consist of property, plant and equipment, net, and are aggregated based on the location of the assets. A summary of these long-lived assets is as follows (in thousands): December 31, 2016 2015 United States $ 29,509 $ 34,907 Europe 4,588 4,014 China 1,286 1,593 Asia-Pacific and other 38 36 Total $ 35,421 $ 40,550

Organization and Presentation -

Organization and Presentation - Additional Information (Details) - Laser Quantum	Jan. 10, 2017	Dec. 31, 2016
Organization And Business Activities [Line Items]
Equity method investment ownership percentage on Laser Quantum		41.00%
Subsequent Event
Organization And Business Activities [Line Items]
Equity method investment ownership percentage on Laser Quantum	76.00%
Percentage of shares acquired	35.00%

Summary of Significant Accoun43

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Significant Accounting Policies [Line Items]
Earnings from equity investment		$ 2,191	$ 2,657	$ 2,700
Cash dividend received		2,341
Gain on sale of facilities		1,707	$ (1)	$ (19)
Accounting standards update effect of change on operating results		100
Restructuring, Acquisition and Divestiture Related Costs | Facility Closing
Significant Accounting Policies [Line Items]
Gain on sale of facilities		$ 1,700
Laser Quantum
Significant Accounting Policies [Line Items]
Equity method investment ownership percentage		41.00%	41.00%
Net investment		$ 8,500	$ 10,100
Cash dividend received	$ 2,300
Maximum
Significant Accounting Policies [Line Items]
Cash equivalents original maturity period		3 months
Maximum | Photonics
Significant Accounting Policies [Line Items]
Standard warranty period		24 months
Maximum | Precision Motion
Significant Accounting Policies [Line Items]
Standard warranty period		24 months
Maximum | Vision
Significant Accounting Policies [Line Items]
Standard warranty period		36 months
Maximum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives		30 years
Maximum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives		10 years
Minimum | Photonics
Significant Accounting Policies [Line Items]
Standard warranty period		12 months
Minimum | Precision Motion
Significant Accounting Policies [Line Items]
Standard warranty period		12 months
Minimum | Vision
Significant Accounting Policies [Line Items]
Standard warranty period		12 months
Minimum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives		3 years
Minimum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives		3 years

Summary of Financial Informatio

Summary of Financial Information of Laser Quantum - Income Statement (Details) - Laser Quantum - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Financial Statements Information [Line Items]
Revenue	$ 23,526	$ 25,599	$ 23,013
Income from operations	5,537	7,362	7,434
Net income	$ 5,389	$ 6,925	$ 6,627

Summary of Financial Informat45

Summary of Financial Information of Laser Quantum - Balance Sheet (Details) - Laser Quantum - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Schedule Of Financial Statements Information [Line Items]
Total assets	[1]	$ 25,043	$ 30,159
Total liabilities		$ 1,556	$ 2,552
[1]	Total assets at December 31, 2016 and 2015 included cash and cash equivalents of $15.5 million and $21.0 million, respectively.

Summary of Financial Informat46

Summary of Financial Information of Laser Quantum - Balance Sheet (Details) (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule Of Financial Statements Information [Line Items]
Cash and cash equivalents	$ 68,108	$ 59,959	$ 51,146	$ 60,980
Laser Quantum
Schedule Of Financial Statements Information [Line Items]
Cash and cash equivalents	$ 15,500	$ 21,000

Changes in Allowance for Doubtf

Changes in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance For Doubtful Accounts Receivable Rollforward
Balance at beginning of year	$ 500	$ 282	$ 575
Provision charged to selling, general and administrative expenses	135	285	30
Allowance resulting from acquisitions	15	5	52
Write-offs, net of recoveries of amounts previously reserved	(82)	(29)	(352)
Divestiture of JK Lasers		(30)
Exchange rate changes	(3)	(13)	(23)
Balance at end of year	$ 565	$ 500	$ 282

Business Combinations - Additio

Business Combinations - Additional Information (Details) - USD ($)	May 24, 2016	Dec. 18, 2015	Nov. 09, 2015	Feb. 19, 2015	Mar. 14, 2014	Dec. 31, 2015	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill						$ 103,456,000		$ 108,128,000	$ 103,456,000
Future contingent consideration						3,889,000		2,381,000	3,889,000
Earn-out Agreement
Business Acquisition [Line Items]
Recognized acquisition costs								2,500,000	(200,000)	$ 600,000
Reach Technology Inc.
Business Acquisition [Line Items]
Membership interests acquired	100.00%
Total purchase price	$ 9,380,000
Goodwill	4,715,000
Intangible assets	3,953,000
Goodwill and intangible assets expected to be deductible for tax purposes	$ 0
Revenues								5,600,000
Income (loss) from continuing operations before income taxes								(600,000)
Reach Technology Inc. | Earn-out Agreement
Business Acquisition [Line Items]
Recognized acquisition costs								1,200,000
Skyetek Inc.
Business Acquisition [Line Items]
Total purchase price		$ 2,800,000
Net cash used for acquisition of business		2,600,000
Future contingent consideration		200,000
Undiscounted range of outcomes, minimum		0
Undiscounted range of outcomes, maximum		$ 300,000
Lincoln Laser Company
Business Acquisition [Line Items]
Total purchase price			$ 12,100,000
Revenues						1,900,000
Income (loss) from continuing operations before income taxes						(300,000)
Net cash used for acquisition of business			9,800,000
Future contingent consideration			2,300,000
Undiscounted range of outcomes, minimum			0
Undiscounted range of outcomes, maximum			$ 6,000,000
Lincoln Laser Company | Scenario, Forecast
Business Acquisition [Line Items]
Contingent consideration payment							$ 1,400,000
Applimotion Inc.
Business Acquisition [Line Items]
Membership interests acquired				100.00%
Total purchase price				$ 14,000,000
Revenues									14,000,000
Income (loss) from continuing operations before income taxes									1,000,000
Net cash used for acquisition of business				13,000,000
Future contingent consideration				1,000,000
Undiscounted range of outcomes, minimum				0
Undiscounted range of outcomes, maximum				$ 4,000,000
Skyetek, Lincoln Laser and Applimotion
Business Acquisition [Line Items]
Total purchase price									28,940,000
Goodwill						12,668,000			12,668,000
Intangible assets						11,370,000			11,370,000
Goodwill and intangible assets expected to be deductible for tax purposes						10,300,000			10,300,000
Future contingent consideration						$ 3,459,000			3,459,000
Total purchase price, net of cash acquired									25,481,000
JADAK Acquisition
Business Acquisition [Line Items]
Membership interests acquired					100.00%
Goodwill					$ 44,584,000
Intangible assets					40,250,000
Goodwill and intangible assets expected to be deductible for tax purposes					61,800,000
Revenues										45,400,000
Income (loss) from continuing operations before income taxes										(2,700,000)
Total purchase price, net of cash acquired					$ 93,656,000
JADAK, LLC
Business Acquisition [Line Items]
Membership interests acquired					100.00%
JADAK Technologies, Inc
Business Acquisition [Line Items]
Membership interests acquired					100.00%
Advanced Data Capture Corporation
Business Acquisition [Line Items]
Membership interests acquired					100.00%
Reach, Skyetek, Lincoln Laser, Applimotion and JADAK
Business Acquisition [Line Items]
Recognized acquisition costs								$ 200,000	$ 900,000	$ 700,000

Summary of Fair Values of Asset

Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation (Details) - USD ($) $ in Thousands	May 24, 2016	Mar. 14, 2014	Dec. 31, 2015	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill			$ 103,456	$ 108,128
Less: contingent consideration			3,889	$ 2,381
Reach Technology Inc.
Business Acquisition [Line Items]
Cash	$ 238
Accounts receivable	991
Inventory	1,611
Prepaid expenses and other current assets	12
Intangible assets	3,953
Goodwill	4,715
Total assets acquired	11,520
Accounts payable	280
Other liabilities	148
Deferred tax liabilities	1,474
Total liabilities assumed	1,902
Total assets acquired, net of liabilities assumed	9,618
Less: cash acquired	238
Total purchase price, net of cash acquired	$ 9,380
Skyetek, Lincoln Laser and Applimotion
Business Acquisition [Line Items]
Cash			331
Accounts receivable			3,166
Inventory			3,544
Prepaid expenses and other current assets			148
Property and equipment			3,220
Intangible assets			11,370
Goodwill			12,668
Other assets			10
Total assets acquired			34,457
Accounts payable			1,681
Other liabilities			1,197
Deferred tax liabilities			2,308
Total liabilities assumed			5,186
Total assets acquired, net of liabilities assumed			29,271
Less: cash acquired			331
Total purchase price, net of cash acquired			28,940
Less: contingent consideration			3,459
Net cash used for acquisition of businesses			$ 25,481
JADAK Acquisition
Business Acquisition [Line Items]
Cash		$ 1,140
Accounts receivable		7,907
Inventory		6,865
Property and equipment		904
Intangible assets		40,250
Goodwill		44,584
Other assets		2,064
Total assets acquired		103,714
Accounts payable		3,057
Other liabilities		2,380
Deferred tax liabilities		3,481
Total liabilities assumed		8,918
Total assets acquired, net of liabilities assumed		94,796
Less: cash acquired		1,140
Net cash used for acquisition of businesses		$ 93,656

Fair Value of Intangible Assets

Fair Value of Intangible Assets (Details) - USD ($) $ in Thousands	May 24, 2016	Dec. 31, 2015	Mar. 14, 2014	Dec. 31, 2016
Acquired Finite Lived Intangible Assets [Line Items]
Amortization Period of intangible assets				10 years
Reach Technology Inc.
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 3,953
Reach Technology Inc. | Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 2,770
Amortization Period of intangible assets	15 years
Reach Technology Inc. | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 500
Amortization Period of intangible assets	7 years
Reach Technology Inc. | Trademarks and Trade Names
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 258
Amortization Period of intangible assets	10 years
Reach Technology Inc. | Backlog
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 425
Amortization Period of intangible assets	1 year
Skyetek, Lincoln Laser and Applimotion
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 11,370
Skyetek, Lincoln Laser and Applimotion | Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 4,266
Amortization Period of intangible assets		12 years
Skyetek, Lincoln Laser and Applimotion | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 4,993
Amortization Period of intangible assets		10 years
Skyetek, Lincoln Laser and Applimotion | Trademarks and Trade Names
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 593
Amortization Period of intangible assets		9 years
Skyetek, Lincoln Laser and Applimotion | Non-compete Covenant
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 684
Amortization Period of intangible assets		4 years
Skyetek, Lincoln Laser and Applimotion | Backlog
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 834
Amortization Period of intangible assets		1 year
JADAK Acquisition
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets			$ 40,250
JADAK Acquisition | Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets			$ 23,570
Amortization Period of intangible assets			20 years
JADAK Acquisition | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets			$ 10,910
Amortization Period of intangible assets			10 years
JADAK Acquisition | Trademarks and Trade Names
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets			$ 2,130
Amortization Period of intangible assets			10 years
JADAK Acquisition | Non-compete Covenant
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets			$ 1,830
Amortization Period of intangible assets			5 years
JADAK Acquisition | Backlog
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets			$ 1,810
Amortization Period of intangible assets			1 year

Discontinued Operations and D51

Discontinued Operations and Divestitures - Additional Information (Details) - USD ($)	1 Months Ended			12 Months Ended
	Jan. 31, 2016	Apr. 30, 2015	Jul. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Proceeds from sale of business, net of transaction costs					$ 29,570,000
Gain (Loss) on sale of business, net of tax						$ (1,726,000)
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		$ 29,600,000
Pre-tax gain (loss) on sale of business		$ 19,600,000
Excel Laser Technology Private Limited
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Minority interest ownership percentage							50.00%
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax						500,000
Ownership in joint venture, Excel Laser Technology Private Limited | Maximum
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Pre-tax gain (loss) on sale of business					(100,000)
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			$ 6,500,000
Gain (Loss) on sale of business, net of tax						(1,700,000)
Sale proceeds held in escrow			$ 1,500,000
Sale proceeds held in escrow, period				2016-01
Escrow deposit released	$ 1,500,000
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax						$ 3,000,000
Scientific Lasers Business | Other Current Assets
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Escrow deposit					$ 1,500,000

Operating Results Reported as D

Operating Results Reported as Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations And Disposal Groups [Abstract]
Revenue from discontinued operations		$ 10,514
Loss from discontinued operations, before income tax	$ (13)	(8,059)
Loss from discontinued operations, net of tax	$ (13)	(5,607)
Loss on disposal of discontinued operations, net of tax		$ (1,726)

Accumulated Other Comprehensi53

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		$ (18,830)	$ (16,456)	$ (6,342)
Other comprehensive income (loss)		(9,611)	(3,249)	(10,488)
Amounts reclassified from other comprehensive income (loss)	[1]	726	875	374
Ending Balance		(27,715)	(18,830)	(16,456)
Cumulative translation adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(9,698)	(5,615)	1,353
Other comprehensive income (loss)		(7,524)	(4,083)	(6,968)
Ending Balance		(17,222)	(9,698)	(5,615)
Pension liability
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(9,132)	(10,841)	(7,695)
Other comprehensive income (loss)		(2,087)	834	(3,520)
Amounts reclassified from other comprehensive income (loss)	[1]	726	875	374
Ending Balance		$ (10,493)	$ (9,132)	$ (10,841)
[1]	The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

Summary of Changes in Goodwill

Summary of Changes in Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Goodwill [Line Items]
Balance at beginning of year	$ 103,456
Balance at end of year	108,128
Lincoln Laser Company
Goodwill [Line Items]
Net working capital adjustment of Lincoln Laser acquisition	(43)
Reach Technology Inc.
Goodwill [Line Items]
Goodwill acquired from Reach acquisition	$ 4,715

Goodwill By Reportable Segment

Goodwill By Reportable Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill	$ 259,357	$ 254,685
Accumulated impairment of goodwill	(151,229)	(151,229)
Total	108,128	103,456
Photonics
Goodwill [Line Items]
Goodwill	136,278	136,321
Accumulated impairment of goodwill	(102,461)	(102,461)
Total	33,817	33,860
Vision
Goodwill [Line Items]
Goodwill	89,116	84,401
Accumulated impairment of goodwill	(31,722)	(31,722)
Total	57,394	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	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 168,141	$ 165,858
Amortizable intangible assets, accumulated amortization	(119,425)	(112,616)
Amortizable intangible assets, net carrying amount	$ 48,716	$ 53,242
Amortizable intangible assets, weighted average remaining life (Years)	10 years 2 months 12 days	11 years
Non-amortizable intangible assets	$ 13,027	$ 13,027
Gross carrying amount	181,168	178,885
Net carrying amount	61,743	66,269
Patents and Acquired Technologies
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	84,742	82,821
Amortizable intangible assets, accumulated amortization	(67,902)	(66,297)
Amortizable intangible assets, net carrying amount	$ 16,840	$ 16,524
Amortizable intangible assets, weighted average remaining life (Years)	7 years 7 months 6 days	7 years 8 months 12 days
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 69,554	$ 67,168
Amortizable intangible assets, accumulated amortization	(42,934)	(36,914)
Amortizable intangible assets, net carrying amount	$ 26,620	$ 30,254
Amortizable intangible assets, weighted average remaining life (Years)	12 years 10 months 24 days	13 years 7 months 6 days
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 622	$ 2,644
Amortizable intangible assets, accumulated amortization	(540)	(2,589)
Amortizable intangible assets, net carrying amount	$ 82	$ 55
Amortizable intangible assets, weighted average remaining life (Years)	10 months 24 days	1 year
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	(1,419)	(882)
Amortizable intangible assets, net carrying amount	$ 1,095	$ 1,632
Amortizable intangible assets, weighted average remaining life (Years)	2 years	3 years 2 months 12 days
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 10,709	$ 10,711
Amortizable intangible assets, accumulated amortization	(6,630)	(5,934)
Amortizable intangible assets, net carrying amount	$ 4,079	$ 4,777
Amortizable intangible assets, weighted average remaining life (Years)	8 years 3 months 18 days	9 years 1 month 6 days

Fair Value of Intangible Asse57

Fair Value of Intangible Assets Acquired (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Estimated Fair Value	$ 3,980
Weighted Average Amortization Period	10 years

Amortization Expense of Intangi

Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense – cost of revenue	$ 4,164	$ 4,712	$ 6,143
Amortization expense – operating expenses	8,251	7,611	10,262
Total amortization expense	$ 12,415	$ 12,323	$ 16,405

Estimated Future Amortization E

Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
2,017	$ 11,042
2,018	8,987
2,019	6,774
2,020	4,649
2,021	4,057
Thereafter	13,207
Amortizable intangible assets, net carrying amount	48,716	$ 53,242
Cost of Revenue
Finite-Lived Intangible Assets [Line Items]
2,017	3,658
2,018	2,274
2,019	2,083
2,020	1,931
2,021	1,767
Thereafter	5,127
Amortizable intangible assets, net carrying amount	16,840
Operating Expenses
Finite-Lived Intangible Assets [Line Items]
2,017	7,384
2,018	6,713
2,019	4,691
2,020	2,718
2,021	2,290
Thereafter	8,080
Amortizable intangible assets, net carrying amount	$ 31,876

Goodwill, Intangible Assets a60

Goodwill, Intangible Assets and Impairment Charges - Additional Information (Details) - USD ($)	Apr. 01, 2016	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Intangible Assets [Line Items]
Impairment of goodwill and intangible assets					$ 41,442,000
Minimum
Goodwill And Intangible Assets [Line Items]
Reporting units in excess of carrying value	20.00%
Vision
Goodwill And Intangible Assets [Line Items]
Impairment of goodwill and intangible assets	$ 0		$ 0	$ 0
Impairment Charge, Intangible assets		$ 21,900,000
Impairment Charge, Goodwill		$ 19,600,000

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)Installment	Dec. 18, 2015USD ($)	Nov. 11, 2015USD ($)	Feb. 19, 2015USD ($)
Skyetek Inc.
Business Acquisition Contingent Consideration [Line Items]
Business combination, date of agreement	Dec. 18, 2015
Name of acquired entity	Skyetek Inc
Estimated fair value of contingent consideration		$ 200
Lincoln Laser Company
Business Acquisition Contingent Consideration [Line Items]
Business combination, date of agreement	Nov. 11, 2015
Name of acquired entity	Lincoln Laser Company
Estimated fair value of contingent consideration	$ 1,433		$ 2,300
Applimotion Inc.
Business Acquisition Contingent Consideration [Line Items]
Business combination, date of agreement	Feb. 19, 2015
Name of acquired entity	Applimotion Inc
Estimated fair value of contingent consideration	$ 3,573			$ 1,000
Number of contingent consideration installments | Installment	2

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets
Cash equivalents	$ 9,569	$ 4,657
Liabilities
Contingent consideration - Current	2,775
Contingent consideration - Long-term	2,381	3,889
Liabilities, fair value	5,156
Fair Value, Inputs, Level 1
Assets
Cash equivalents	9,569	4,657
Fair Value, Inputs, Level 3
Liabilities
Contingent consideration - Current	2,775
Contingent consideration - Long-term	2,381	$ 3,889
Liabilities, fair value	$ 5,156

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 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 3,889
Ending balance	5,156	$ 3,889
Applimotion Inc.
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Acquisition of company		965
Fair value adjustment	2,178	430
Lincoln Laser Company
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Acquisition of company		2,344
Fair value adjustment	$ (911)
Skyetek Inc.
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Acquisition of company		$ 150

Fair Value Measurements - Sum64

Fair Value Measurements - Summary of Changes in the Fair Value Measurement of the Company's Level 3 Financial Instrument (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Nov. 11, 2015	Feb. 19, 2015
Applimotion Inc.
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Fair Value	$ 3,573		$ 1,000
Unobservable Inputs	Historical and projected revenues for fiscal years 2015 to 2017
Revenue volatility	41.30%
Cost of debt	3.49%
WACC	11.00%
Lincoln Laser Company
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Fair Value	$ 1,433	$ 2,300
Unobservable Inputs	Historical revenues
Historical revenues percentage	100.00%

Fair Value Measurements - Sum65

Fair Value Measurements - Summary of Changes in the Fair Value Measurement of the Company's Level 3 Financial Instrument (Parenthetical) (Details) - Scenario, Forecast $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Applimotion Inc.
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Payment of contingent consideration	$ 1,200
Lincoln Laser Company
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Payment of contingent consideration	$ 1,433

Computation of Basic and Dilute

Computation of Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Numerators:
Income (loss) from continuing operations	$ 22,003	$ 35,628	$ (16,909)
Consolidated loss from discontinued operations		(13)	(7,333)
Less: income attributable to noncontrolling interest			(10)
Loss from discontinued operations attributable to Novanta Inc.		(13)	(7,343)
Net income (loss) attributable to Novanta Inc.	$ 22,003	$ 35,615	$ (24,252)
Denominators:
Weighted average common shares outstanding—basic	34,694	34,579	34,352
Dilutive potential common shares	220	248
Weighted average common shares outstanding— diluted	34,914	34,827	34,352
Antidilutive common shares excluded from above	85		439
Basic Earnings (Loss) per Common Share:
From continuing operations	$ 0.63	$ 1.03	$ (0.49)
From discontinued operations		0	(0.21)
Basic earnings (loss) per share attributable to Novanta Inc.	0.63	1.03	(0.70)
Diluted Earnings (Loss) per Common Share:
From continuing operations	0.63	1.02	(0.49)
From discontinued operations		0	(0.21)
Diluted earnings (loss) per share attributable to Novanta Inc.	$ 0.63	$ 1.02	$ (0.70)

Earnings (Loss) Per Common Sh67

Earnings (Loss) Per Common Share - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands	12 Months Ended		39 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Oct. 31, 2013
Computation Of Earnings Per Share Line Items
Repurchase of common stock	$ 1,634,000	$ 1,627,000
Common Stock Repurchase Plan
Computation Of Earnings Per Share Line Items
Shares repurchased	109	122	282
Repurchase of common stock	$ 1,600,000	$ 1,600,000	$ 3,800,000
Shares repurchased, average cost per share	$ 14.93	$ 13.29	$ 13.43
Maximum
Computation Of Earnings Per Share Line Items
Outstanding common stock repurchase program authorized amount				$ 10,000,000

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 39,822	$ 38,511
Work-in-process	8,012	10,138
Finished goods	9,511	9,266
Demo and consigned inventory	2,400	1,651
Total inventories	$ 59,745	$ 59,566

Property Plant and Equipment, N

Property Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 90,520	$ 91,530
Accumulated depreciation	(55,099)	(50,980)
Property, plant and equipment, net	35,421	40,550
Land, Buildings and Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	38,384	48,154
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 52,136	$ 43,376

Supplementary Balance Sheet I70

Supplementary Balance Sheet Information - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Asset capitalized under capital lease	$ 13,159	$ 13,159
Capitalized software development costs	$ 2,300	$ 1,900	$ 200

Summary of Depreciation Expense

Summary of Depreciation Expense on Property, Plant and Equipment, Including Demo Units and Assets under Capital Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Depreciation expense	$ 8,558	$ 7,873	$ 8,016

Summary of Total Accumulated De

Summary of Total Accumulated Depreciation on Assets under Capital Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Accumulated depreciation on assets under capital leases	$ 4,950	$ 3,798

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Liabilities Disclosure [Abstract]
Accrued compensation and benefits	$ 9,647	$ 7,357
Accrued warranty	3,142	3,335	$ 3,044	$ 3,315
Accrued restructuring	1,371	1,652
Accrued professional services	1,237	1,039
Accrued contingent considerations	2,775
Customer deposits	1,164	628
Other	7,612	7,171
Total	$ 26,948	$ 21,182

Accrued Warranty (Details)

Accrued Warranty (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Product Warranties Disclosures [Abstract]
Balance at beginning of year	$ 3,335	$ 3,044	$ 3,315
Provision charged to cost of revenue	1,673	2,025	1,684
Acquisition related warranty accrual	23	132	90
Use of provision	(1,849)	(1,454)	(2,003)
Divestiture of JK Lasers		(389)
Foreign currency exchange rate changes	(40)	(23)	(42)
Balance at end of year	$ 3,142	$ 3,335	$ 3,044

Summary of Other Long Term Liab

Summary of Other Long Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Liabilities Noncurrent [Abstract]
Capital lease obligations	$ 8,111	$ 9,173
Accrued pension liabilities	5,957	3,693
Accrued contingent considerations	2,381	3,889
Other	2,264	2,690
Total	$ 18,713	$ 19,445

Debt (Details)

Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Total current portion of long-term debt	$ 7,366	$ 7,385
Total long-term debt	70,554	88,426
Total Senior Credit Facilities	77,920	95,811
Term Loans
Debt Instrument [Line Items]
Current portion of long-term debt, Gross	7,500	7,500
Long-term debt, Gross	63,750	20,000
Total Senior Credit Facilities	71,250
Term Loan And Revolving Credit Facility
Debt Instrument [Line Items]
Less: unamortized debt issuance costs	(134)	(115)
Less: unamortized debt issuance costs	(3,196)	(1,574)
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt, Gross	$ 10,000	$ 70,000

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($)	May 19, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 300,000,000
Debt instrument maturity period	5 years
Revolving credit facility maturity year		2021-05
Maximum consolidated leverage ratio	300.00%
Second amended and restated credit agreement, covenants		The Second Amended and Restated Credit Agreement also requires the Company to satisfy certain financial covenants, such as maintaining a minimum consolidated fixed charge coverage ratio of 1.50 to 1.00 and a maximum consolidated leverage ratio of 3.00 to 1.00. The maximum consolidated leverage ratio will increase to 3.50:1.00 for four consecutive quarters following an acquisition with an aggregate consideration greater than or equal to $50.0 million.
Minimum consolidated fixed charge coverage ratio	150.00%
Senior Credit Facilities
Debt Instrument [Line Items]
Debt instrument interest rate		2.90%
Deferred financing costs		$ 2,500,000
Non-cash interest expense related to amortization of deferred financing costs		$ 900,000	$ 900,000	$ 1,000,000
Senior Credit Facilities | Repurchase of Equity Interests
Debt Instrument [Line Items]
Maximum consolidated leverage ratio	250.00%
Acquisition with Aggregate Consideration Greater than or Equal to $50 million
Debt Instrument [Line Items]
Maximum consolidated leverage ratio	350.00%
Debt instrument, covenant, required business acquisition consideration, minimum	$ 50,000,000
Eurocurrency Rate | Minimum
Debt Instrument [Line Items]
Variable interest rate		1.75%
Eurocurrency Rate | Maximum
Debt Instrument [Line Items]
Variable interest rate		2.75%
Base Rate | Minimum
Debt Instrument [Line Items]
Variable interest rate		0.75%
Base Rate | Maximum
Debt Instrument [Line Items]
Variable interest rate		1.75%
Term Loans
Debt Instrument [Line Items]
Maximum borrowing capacity	75,000,000
Quarterly installments payable on term loan	1,900,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 225,000,000
Unused commitment fees percentage		0.30%
Available for borrowings capacity		$ 215,000,000
Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Unused commitment fees percentage		0.25%
Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Unused commitment fees percentage		0.45%

Principal Repayments on Outstan

Principal Repayments on Outstanding Term Loan (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Long Term Debt Maturities Repayments Of Principal [Line Items]
Total Senior Credit Facilities	$ 77,920	$ 95,811
Term Loans
Long Term Debt Maturities Repayments Of Principal [Line Items]
2,017	7,500
2,018	7,500
2,019	7,500
2,020	7,500
2,021	41,250
Total Senior Credit Facilities	$ 71,250

Capital Stock and Share-Based79

Capital Stock and Share-Based Compensation - Additional Information (Details) - USD ($)	Mar. 30, 2016	Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014	May 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense recognized		$ 4,293,000		$ 4,065,000	$ 4,651,000
Unrecognized stock-based compensation expense		$ 6,800,000
Unrecognized stock-based compensation expense, weighted-average recognition period		3 years 18 days
Proceeds from the exercise of stock option		$ 181,000
Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense recognized		$ 500,000		$ 500,000	$ 500,000
2010 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares to be issued						4,398,613
Incentive plan and award expiration date		Apr. 9, 2024
Shares available for future issuance		1,581,527
2010 Incentive Award Plan | Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units, Granted		531,000
2010 Incentive Award Plan | Restricted Stock Units (RSUs) | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
2010 Incentive Award Plan | Restricted Stock Units (RSUs) | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		5 years
2010 Incentive Award Plan | Restricted Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total value of restricted stock and deferred stock units vested		$ 5,100,000
2010 Incentive Award Plan | Performance Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units, Granted	46,000	46,000	[1]
Vesting performance cycle		3 years
2010 Incentive Award Plan | Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Stock options, Granted	193,000	193,000
Stock options, Expiration Period		10 years
Proceeds from the exercise of stock option		$ 181,000
2010 Incentive Award Plan | Stock Options | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total fair value of stock options exercised		100,000
Tax benefit realized for tax deductions from option exercises		$ 100,000
[1]	The unvested PSUs are shown in this table at target, except for the number of shares vested, which reflect the shares earned. As of December 31, 2016, the maximum number of PSUs available to be earned is approximately 59 thousand.

Capital Stock and Share-Based80

Capital Stock and Share-Based Compensation - Share-Based Compensation Expense Recorded In Income from Continuing Operations in Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 4,293	$ 4,065	$ 4,651
Selling, general and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	3,920	3,960	3,967
Research and development and engineering
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	117	170	196
Cost of Revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 256	257	166
Restructuring, acquisition and divestiture related costs
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense, adjustment		$ (322)	$ 322

Capital Stock and Share-Based81

Capital Stock and Share-Based Compensation - Restricted Stock Units Issued and Outstanding (Details) - 2010 Incentive Award Plan - Restricted Stock Units (RSUs) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares
Restricted Stock Units
Unvested, Beginning Balance | shares	619
Granted | shares	531
Vested | shares	(373)
Forfeited | shares	(142)
Unvested, Ending Balance | shares	635
Expected to vest at end of period | shares	608
Weighted Average Grant Date Fair Value
Unvested, Beginning Balance | $ / shares	$ 12.32
Granted | $ / shares	14.29
Vested | $ / shares	12.01
Forfeited | $ / shares	13.11
Unvested, Ending Balance | $ / shares	13.97
Expected to vest at end of period | $ / shares	$ 14
Weighted Average Remaining Vesting Period (in years)
Unvested at end of period	2 years 26 days
Expected to vest at end of period	2 years 26 days
Aggregate Intrinsic Value
Unvested at end of period | $	$ 13,335	[1]
Expected to vest at end of period | $	$ 12,767	[1]
[1]	The aggregate intrinsic value is calculated based on the fair value of $21.00 per share of the Company’s common stock on December 31, 2016 due to the fact that the restricted stock units carry a $0 purchase price.

Capital Stock and Share-Based82

Capital Stock and Share-Based Compensation - Restricted Stock Units Issued and Outstanding (Parenthetical) (Details) - 2010 Incentive Award Plan - Restricted Stock Units (RSUs)	Dec. 31, 2016$ / shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock fair value per share	$ 21
Restricted stock units purchase price per share	$ 0

Capital Stock and Share-Based83

Capital Stock and Share-Based Compensation - Performance Stock Units Issued and Outstanding (Details) - 2010 Incentive Award Plan - Performance Stock Units - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		Mar. 30, 2016	Dec. 31, 2016
Performance Stock Units
Granted		46	46	[1]
Forfeited	[1]		(17)
Unvested, Ending Balance	[1]		29
Expected to vest at end of period	[1]		29
Weighted Average Grant Date Fair Value
Granted			$ 14.13
Forfeited			14.13
Unvested, Ending Balance			14.13
Expected to vest at end of period			$ 14.13
Weighted Average Remaining Vesting Period (in years)
Unvested at end of period			2 years
Expected to vest at end of period			2 years
Aggregate Intrinsic Value
Unvested at end of period	[2]		$ 615
Expected to vest at end of period	[2]		$ 615
[1]	The unvested PSUs are shown in this table at target, except for the number of shares vested, which reflect the shares earned. As of December 31, 2016, the maximum number of PSUs available to be earned is approximately 59 thousand.
[2]	The aggregate intrinsic value is calculated based on the fair value of $21.00 per share of the Company’s common stock on December 31, 2016 due to the fact that the performance stock units carry a $0 purchase price.

Capital Stock and Share-Based84

Capital Stock and Share-Based Compensation - Performance Stock Units Issued and Outstanding (Parenthetical) (Details) - 2010 Incentive Award Plan - Performance Stock Units	Dec. 31, 2016$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock fair value per share	$ 21
Performance stock units purchase price per share	$ 0
Maximum number of PSUs available to be earned | shares	59,000

Capital Stock and Share-Based85

Capital Stock and Share-Based Compensation - Stock Options Issued and Outstanding (Details) - 2010 Incentive Award Plan - Stock Options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		Mar. 30, 2016	Dec. 31, 2016
Stock Options
Granted		193	193
Exercised			(13)
Forfeited			(77)
Unvested, Ending Balance			103
Expected to vest at end of period			103
Weighted Average Exercise Price
Granted			$ 14.13
Exercised			14.13
Forfeited			14.13
Unvested, Ending Balance			14.13
Expected to vest at end of period			$ 14.13
Weighted Average Remaining Vesting Period (in years)
Unvested at end of period			9 years 3 months
Expected to vest at end of period			9 years 3 months
Aggregate Intrinsic Value
Unvested at end of period	[1]		$ 707
Expected to vest at end of period	[1]		$ 707
[1]	The aggregate intrinsic value is calculated as the difference between the market price of $21.00 per share of the Company’s common stock on December 31, 2016 and the grant date exercise price.

Capital Stock and Share-Based86

Capital Stock and Share-Based Compensation - Stock Options Issued and Outstanding (Parenthetical) (Details)	Dec. 31, 2016$ / shares
2010 Incentive Award Plan | Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock fair value per share	$ 21

Capital Stock and Share-Based87

Capital Stock and Share-Based Compensation - Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model (Details) - Stock Options	12 Months Ended
	Dec. 31, 2016
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected option term in year	6 years	[1]
Expected volatility	33.80%	[2]
Risk-free interest rate	1.60%	[3]
Expected annual dividend yield	0.00%	[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.

Capital Stock and Share-Based88

Capital Stock and Share-Based Compensation - Estimated Fair Value of Stock Options Using the Black-Scholes Valuation Model (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2016
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected annual dividend yield	0.00%	[1]
[1]	The expected annual dividend yield is zero, as the Company does not have plans to issue dividends.

Net Periodic Pension Cost (Deta

Net Periodic Pension Cost (Details) - UNITED KINGDOM - Foreign Pension Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of the net periodic pension cost:
Interest cost	$ 1,232	$ 1,340	$ 1,589
Expected return on plan assets	(1,566)	(1,844)	(1,958)
Amortization of actuarial losses	726	875	374
Net periodic pension cost	$ 392	$ 371	$ 5

Actuarial Assumptions used to C

Actuarial Assumptions used to Compute Net Periodic Pension Cost (Details) - UNITED KINGDOM	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted-average discount rate	3.80%	3.50%	4.60%
Weighted-average long-term rate of return on plan assets	5.30%	5.60%	5.90%

Actuarial Assumptions used to91

Actuarial Assumptions used to Compute Benefit Obligations (Details) - UNITED KINGDOM	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted-average discount rate	2.60%	3.80%
Rate of inflation	3.00%	2.80%

Reconciliation of Benefit Oblig

Reconciliation of Benefit Obligations and Plan Assets of U.K. Plan (Details) - UNITED KINGDOM - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Change in benefit obligation:
Projected benefit obligation at beginning of year	$ 35,914	$ 39,421
Interest cost	1,232	1,340
Actuarial (gains) losses	7,425	(2,083)
Benefits paid	(809)	(798)
Foreign currency exchange rate changes	(6,501)	(1,966)
Projected benefit obligation at end of year	37,261	35,914
Accumulated benefit obligation at end of year	37,261	35,914
Change in plan assets:
Fair value of plan assets at beginning of year	32,374	33,610
Actual return on plan assets	4,522	342
Employer contributions	868	955
Benefits paid	(809)	(798)
Foreign currency exchange rate changes	(5,651)	(1,735)
Fair value of plan assets at end of year	31,304	32,374
Funded status at end of year	(5,957)	(3,540)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost:
Net actuarial losses at beginning of year	(9,874)	(11,890)
Net actuarial gains (losses) during the year	(4,469)	581
Amounts reclassified from accumulated other comprehensive income to income before income taxes	726	875
Foreign currency exchange rate changes	1,920	560
Net actuarial losses at end of year	(11,697)	(9,874)
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic pension cost over the next fiscal year consists of:
Net actuarial loss	$ 1,148	$ 794

Expected Future Benefit Payment

Expected Future Benefit Payments (Details) - UNITED KINGDOM $ in Thousands	Dec. 31, 2016USD ($)
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
2,017	$ 875
2,018	725
2,019	1,048
2,020	1,205
2,021	1,371
2022-2026	7,667
Total	$ 12,891

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Employee Benefit Plan [Line Items]
Defined benefit plan contributions by employer	$ 2,500	$ 2,700	$ 2,600
UNITED KINGDOM
Employee Benefit Plan [Line Items]
Funding valuation period	3 years
Defined benefit plan contributions by employer	$ 868	$ 955
Defined benefit plan estimated employer contributions for 2017	$ 800
Defined benefit plans increase future employer contributions percentage	2.90%

Summary of Fair Value of Plan A

Summary of Fair Value of Plan Assets by Asset Category (Details) - UNITED KINGDOM - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets		$ 31,304		$ 32,374		$ 33,610
Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets		236		180
ASU 2015-07 | Not Subject to Leveling
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	[1]	31,068		32,194
Mutual Funds | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets		23,317	[2]	15,611	[3]
Mutual Funds | Balanced Fund | ASU 2015-07 | Not Subject to Leveling
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	[1]	23,317	[2]	15,611	[3]
Mutual Funds | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets		3,239	[4]	16,583	[5]
Mutual Funds | Growth Funds | ASU 2015-07 | Not Subject to Leveling
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	[1]	3,239	[4]	16,583	[5]
Mutual Funds | Fixed Income
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	[6]	4,512
Mutual Funds | Fixed Income | ASU 2015-07 | Not Subject to Leveling
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	[1],[6]	4,512
Cash
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets		236		180
Cash | Estimate of Fair Value Measurement | Fair Value, Inputs, Level 1
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets		$ 236		$ 180
[1]	In 2016, the Company adopted ASU 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent).” As a result of the adoption, pension plan assets measured using the net asset value per share (or its equivalent) are presented as “Not Subject to Leveling” in the table above.
[2]	This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (34%), bonds (36%), other assets (27%) and cash (3%).
[3]	This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (52%), bonds (24%), other assets (9%) and cash (15%).
[4]	This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (59%), bonds (16%), other assets (22%) and cash (3%).
[5]	This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (12%), other assets (9%), and cash (12%).
[6]	This class comprises a diversified portfolio of global investments which seeks fixed income and is allocated on a weighted average basis as follows: bonds (93%), other assets (1%) and cash (6%).

Summary of Fair Value of Plan96

Summary of Fair Value of Plan Assets by Asset Category (Parenthetical) (Details) - UNITED KINGDOM	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Bonds | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	36.00%	24.00%
Bonds | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	16.00%	12.00%
Bonds | Fixed Income
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	93.00%
Equity Securities | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	34.00%	52.00%
Equity Securities | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	59.00%	67.00%
Other Asset | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	27.00%	9.00%
Other Asset | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	22.00%	9.00%
Other Asset | Fixed Income
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	1.00%
Cash | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	3.00%	15.00%
Cash | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	3.00%	12.00%
Cash | Fixed Income
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	6.00%

Components of Income (Loss) fro

Components of Income (Loss) from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income (loss) from continuing operations before income taxes:
Income (loss) from continuing operations before income taxes	$ 32,522	$ 46,022	$ (17,915)
CANADA
Income (loss) from continuing operations before income taxes:
Foreign	(1,872)	(1,674)	(20,212)
UNITED STATES
Income (loss) from continuing operations before income taxes:
U.S.	20,422	23,298	(9,661)
Other Countries
Income (loss) from continuing operations before income taxes:
Foreign	$ 13,972	$ 24,398	$ 11,958

Components of Income Tax Provis

Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)	$ 12,285	$ 12,086	$ 5,730
Deferred income tax provision (benefit)	(1,766)	(1,692)	(6,736)
Income Tax Provision (benefit)	10,519	10,394	(1,006)
CANADA
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)	43	96	175
Deferred income tax provision (benefit)	0	0	0
UNITED STATES
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)	9,678	8,136	3,615
Deferred income tax provision (benefit)	(2,378)	(3,239)	(6,731)
Other Countries
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)	2,564	3,854	1,940
Deferred income tax provision (benefit)	$ 612	$ 1,547	$ (5)

Reconciliation of Statutory Can

Reconciliation of Statutory Canadian Tax rate to Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule Of Effective Tax Rate Reconciliation [Line Items]
Income Tax Provision (benefit)	$ 10,519	$ 10,394	$ (1,006)
Canada Revenue Agency
Schedule Of Effective Tax Rate Reconciliation [Line Items]
Statutory Canadian tax rate	28.50%	27.00%	27.00%
Expected income tax provision at Canadian statutory tax rate	$ 9,269	$ 12,426	$ (4,837)
International tax rate differences	891	304	(1,132)
State income taxes, net	503	453	(271)
Withholding and other taxes	441	731	421
Permanent differences	179	1,000	486
Acquisition contingent consideration adjustments	762
Transaction costs	649	270	8
Section 199 deduction	(1,063)	(1,188)	(574)
Change in valuation allowance	1,202	(612)	4,809
Provision to return differences	(93)	(617)	962
Tax credits	(1,095)	(990)	(1,678)
Statutory tax rate change	(856)	95	(13)
Uncertain tax positions	(103)	121	134
IRS audit		(748)	241
JK Lasers divestiture		(1,432)
Goodwill impairment			330
Other	(167)	581	108
Income Tax Provision (benefit)	$ 10,519	$ 10,394	$ (1,006)
Effective tax rate	32.30%	22.60%	5.60%

Significant Components of Defer

Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Losses	$ 9,557	$ 9,985
Compensation related deductions	4,437	2,915
Tax credits	2,318	2,409
Restructuring related liabilities	471	294
Inventory	5,869	4,415
Depreciation		503
Amortization	3,082	3,205
Warranty	1,049	1,127
Other	1,688	1,281
Total deferred tax assets	28,471	26,134
Valuation allowance on deferred tax assets	(13,014)	(12,537)
Net deferred tax assets	15,457	13,597
Deferred tax liabilities:
Equity-method investment	(1,370)	(1,733)
Depreciation	(749)
Amortization	(4,162)	(2,791)
Unrealized currency gains/losses	(659)	(1,292)
Other	(1,218)	(345)
Total deferred tax liabilities	(8,158)	(6,161)
Net deferred income tax assets (liabilities)	$ 7,299	$ 7,436

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Capital loss carryforward	$ 400	$ 600	$ 400
Loss carryforwards	4,400	4,900
Capital loss carryforwards with valuation allowance	5,200	5,100
Tax credits	2,300	2,400
Undistributed earnings of foreign subsidiaries	15,200
Estimated unrecognized deferred income tax liabilities related to undistributed earnings of foreign subsidiaries	200
Unrecognized tax benefits	4,962	5,490	6,274	$ 7,074
Unrecognized tax benefits that will impact tax rate if recognized	4,000	4,100
Unrecognized tax benefit income tax interest and penalties accrued	1,100	900
Unrecognized tax benefits, income tax penalties and interest expense	100	100
Maximum
Income Taxes [Line Items]
Maximum unrecognized tax benefits expected to be recorded in next twelve months	1,700	1,200
State and Local Jurisdiction
Income Taxes [Line Items]
Valuation allowances against current year net operating losses in certain tax jurisdictions	1,300	800	300
Capital loss carryforward	100	800	$ 300
CANADA
Income Taxes [Line Items]
Adjusted loss carryforward and related valuation allowance	300
Loss carryforwards	$ 3,100	$ 2,400
Operating loss carryforwards expiration year	2,031	2,031
Capital loss carryforwards with valuation allowance	$ 4,700	$ 4,300
Tax credits	1,800	1,700
CANADA | Tax Credit That Will Expire In Certain Period
Income Taxes [Line Items]
Tax credits	$ 1,100	$ 1,100
Tax credits, expiration Year	2,022	2,022
CANADA | Tax Credits That Can Be Carried Forward Indefinitely
Income Taxes [Line Items]
Tax credits	$ 700	$ 600
UNITED STATES
Income Taxes [Line Items]
Loss carryforwards	$ 1,300	$ 1,600
Operating loss carryforwards expiration year	2,035	2,034
Capital loss carryforwards with valuation allowance		$ 400
Tax credits	$ 500	700
UNITED STATES | Tax Credit That Will Expire In Certain Period
Income Taxes [Line Items]
Tax credits	$ 400	$ 600
Tax credits, expiration Year	2,031	2,030
UNITED STATES | Tax Credits That Can Be Carried Forward Indefinitely
Income Taxes [Line Items]
Tax credits	$ 100	$ 100
UNITED KINGDOM
Income Taxes [Line Items]
Loss carryforwards		700
Capital loss carryforwards with valuation allowance	$ 500	400
Other Countries
Income Taxes [Line Items]
Loss carryforwards		$ 200
Operating loss carryforwards expiration year		2,020

Reconciliation of Total Amounts

Reconciliation of Total Amounts of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Beginning balance of unrecognized tax benefits	$ 5,490	$ 6,274	$ 7,074
Additions based on tax positions related to the current year	561	752	1,180
Additions for tax positions of prior years	88	78	2,601
Reductions for tax positions of prior years	(45)	(626)	(2,404)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations	(842)	(226)	(2,177)
Settlements with taxation authorities	(290)	(762)
Ending balance of unrecognized tax benefits	$ 4,962	$ 5,490	$ 6,274

Income Tax Returns to be Review

Income Tax Returns to be Reviewed (Details)	12 Months Ended
	Dec. 31, 2016
UNITED STATES
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,013
CANADA
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,011
UNITED KINGDOM
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,015
GERMANY
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,011
NETHERLANDS
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,011
CHINA
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,007
JAPAN
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2,012

Schedule of Restructuring, Acqu

Schedule of Restructuring, Acquisition and Divestiture Related Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 2,970	$ 5,840	$ 414
Acquisition and related charges	4,975	1,301	1,521
Divestiture related charges		1,113
Total acquisition and divestiture related charges	4,975	2,414	1,521
Total restructuring, acquisition and divestiture related costs	7,945	8,254	1,935
2016 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	3,049	3,148
2015 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges		1,484
2013 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges			25
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ (79)	$ 1,208	$ 389

Restructuring, Acquisition a105

Restructuring, Acquisition and Divestiture Related Costs - Additional Information (Details) $ in Thousands		1 Months Ended			12 Months Ended
		Dec. 31, 2016USD ($)Facility	Aug. 31, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)Facility	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						$ 2,970	$ 5,840	$ 414
Proceeds from the sale of property, plant and equipment						7,037	127	112
Gain on sale of facilities						1,707	(1)	(19)
Cash payments						4,181	3,126
Divestiture related charges							1,113
Finders' Fees, Legal, Valuation And Other Professional Or Consulting Fees
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Acquisition and related charges						2,500	1,500	900
Earn-out Agreement
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Acquisition and related charges						2,500	(200)	600
Scenario, Forecast
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Cash payments					$ 1,000
Severance
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Cash payments						3,170	2,668
Facility
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Cash payments						104	156
Other Restructuring Charges
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Cash payments	[1]					$ 907	302
2016 Restructuring
Restructuring, Acquisition and Divestiture Related Costs [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. Restructuring costs incurred in 2016 of $2.4 million, $(0.2) million and $0.8 million were related to severance, facility, and other, respectively. We substantially completed the 2016 restructuring program during the second quarter of 2016. In August 2016, the Company sold our facility in Chatsworth, California for a net cash consideration of $3.4 million and recognized a gain on sale of $1.6 million as part of restructuring, acquisition and divestiture related costs. As of December 31, 2016, the Company incurred cumulative costs related to this restructuring plan totaling $6.2 million, net of the gain on sale of the Chatsworth, California facility. The Company expects to incur additional restructuring charges of $0.2 million to $0.3 million related to the 2016 restructuring plan in the next twelve months.
Restructuring Costs						$ 3,049	3,148
2016 Restructuring | Severance
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						2,400
2016 Restructuring | Facility
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						(200)
2016 Restructuring | Other Restructuring Charges
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						800
2016 Restructuring | Cumulative Restructuring Costs
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						6,200
2016 Restructuring | Minimum | Additional Restructuring Costs
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						200
2016 Restructuring | Maximum | Additional Restructuring Costs
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs						300
2016 Restructuring | Chatsworth Facility
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Proceeds from the sale of property, plant and equipment			$ 3,400
Gain on sale of facilities			$ 1,600			$ 1,600
2015 Restructuring
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring plan						During the first quarter of 2015, the Company implemented 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. Restructuring costs incurred in 2015 of $1.4 million and $0.1 million were related to severance and other, respectively. The plan was completed during 2015.
Restructuring Costs							1,484
2015 Restructuring | Severance
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs							1,400
2015 Restructuring | Other Restructuring Charges
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs							100
2011 Restructuring
Restructuring, Acquisition and Divestiture Related Costs [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. In total, eleven facilities have been exited as part of the 2011 restructuring plan. These eliminations resulted in the consolidation of the manufacturing facilities of the Scientific Lasers business and the optics products, the consolidation of the Company’s German operations into one facility, the consolidation of the laser scanners business into the Company’s Bedford, Massachusetts facility and the consolidation of the Company’s Japan operation into one facility. Included in the eleven facilities exited are five facilities exited as part of the Semiconductor and Laser Systems business divestitures. The restructuring costs for the Semiconductor and Laser Systems businesses have been excluded from the table below as they have been reported as part of the operating results from discontinued operations. The Company substantially completed the 2011 restructuring program in 2013. In March 2016, the Company sold our previously exited facility located in Orlando, Florida for cash at the net carrying value of $3.5 million. In December 2016, the lease agreement for the Company’s previously exited laser scanner business facility was terminated, which resulted in a benefit of $0.2 million. Restructuring costs from the 2011 restructuring program recognized in 2016 are primarily depreciation and other costs related to the Orlando, Florida facility and the previously exited laser scanners business facility.
Restructuring Costs						$ (79)	$ 1,208	$ 389
Number of facilities exited | Facility		11				11
2011 Restructuring | Semiconductor and Laser Systems Business [Member]
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Number of facilities exited | Facility		5				5
2011 Restructuring | Orlando Facility
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Proceeds from the sale of property, plant and equipment				$ 3,500
2011 Restructuring | Laser Scanner
Restructuring, Acquisition and Divestiture Related Costs [Line Items]
Restructuring Costs		$ 200
[1]	Other restructuring charges mainly related to consulting fees and relocation costs.

Summary of Restructuring Costs

Summary of Restructuring Costs for Each Segment and Unallocated Corporate Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 2,970	$ 5,840	$ 414
2016 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	3,049	3,148
Cumulative Costs	6,197
2016 Restructuring | Photonics
Restructuring Cost And Reserve [Line Items]
Restructuring charges	813	55
Cumulative Costs	868
2016 Restructuring | Vision
Restructuring Cost And Reserve [Line Items]
Restructuring charges	1,862	2,200
Cumulative Costs	4,062
2016 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring charges	106	833
Cumulative Costs	939
2016 Restructuring | Unallocated Corporate and Shared Services
Restructuring Cost And Reserve [Line Items]
Restructuring charges	268	60
Cumulative Costs	328
2015 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges		1,484
2015 Restructuring | Photonics
Restructuring Cost And Reserve [Line Items]
Restructuring charges		542
2015 Restructuring | Vision
Restructuring Cost And Reserve [Line Items]
Restructuring charges		525
2015 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring charges		79
2015 Restructuring | Unallocated Corporate and Shared Services
Restructuring Cost And Reserve [Line Items]
Restructuring charges		338
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(79)	1,208	389
Cumulative Costs	5,183
2011 Restructuring | Photonics
Restructuring Cost And Reserve [Line Items]
Restructuring charges	(188)	0	(106)
Cumulative Costs	1,751
2011 Restructuring | Vision
Restructuring Cost And Reserve [Line Items]
Restructuring charges	0	0	0
Cumulative Costs	48
2011 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring charges	0	0	0
Cumulative Costs	122
2011 Restructuring | Unallocated Corporate and Shared Services
Restructuring Cost And Reserve [Line Items]
Restructuring charges	109	$ 1,208	$ 495
Cumulative Costs	$ 3,262

Summary of Accrual Activities b

Summary of Accrual Activities by Components Related to Company's Restructuring Charges (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance		$ 1,882		$ 231
Restructuring charges		4,929	[1]	5,840
Reserves reversed		(322)
Cash payments		(4,181)		(3,126)
Non-cash write-offs and other adjustments		(572)		(1,063)
Accrued expense ending balance		1,736		1,882
Severance
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance		1,358		102
Restructuring charges		2,738	[1]	3,918
Reserves reversed		(322)
Cash payments		(3,170)		(2,668)
Non-cash write-offs and other adjustments		7		6
Accrued expense ending balance		611		1,358
Facility
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance		406		108
Restructuring charges		777	[1]	441
Cash payments		(104)		(156)
Non-cash write-offs and other adjustments		32		13
Accrued expense ending balance		1,111		406
Depreciation
Restructuring Cost And Reserve [Line Items]
Restructuring charges		616	[1]	1,082
Non-cash write-offs and other adjustments		(616)		(1,082)
Other Restructuring Charges
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	[2]	118		21
Restructuring charges	[2]	798	[1]	399
Cash payments	[2]	(907)		(302)
Non-cash write-offs and other adjustments	[2]	5
Accrued expense ending balance	[2]	$ 14		$ 118
[1]	Excludes $1.6 million of gain on sale of the Chatsworth, California facility.
[2]	Other restructuring charges mainly related to consulting fees and relocation costs.

Summary of Accrual Activitie108

Summary of Accrual Activities by Components Related to Company's Restructuring Charges (Parenthetical) (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]
Gain on sale of facilities		$ 1,707	$ (1)	$ (19)
2016 Restructuring | Chatsworth Facility
Restructuring Cost And Reserve [Line Items]
Gain on sale of facilities	$ 1,600	$ 1,600

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016USD ($)Customer	Dec. 31, 2015USD ($)Customer	Dec. 31, 2014USD ($)
Commitments And Contingencies Disclosure [Line Items]
Lease expense	$ 4,200,000	$ 4,500,000	$ 4,100,000
Unconditional purchase commitments	30,900,000
Unconditional purchase commitments, 2017	29,100,000
Unconditional purchase commitments, 2018	$ 1,800,000
Number of customer accounted on accounts receivable balance | Customer	1
Number of customers accounted for 10% or more of accounts receivable | Customer	0	0
Minimum
Commitments And Contingencies Disclosure [Line Items]
Lease agreement expiration year	2,017
Maximum
Commitments And Contingencies Disclosure [Line Items]
Lease agreement expiration year	2,019
Unconditional purchase commitments, 2019 and 2020	$ 100,000
Land | Maximum
Commitments And Contingencies Disclosure [Line Items]
Lease agreement expiration year	2,078

Commitments and Contingencie110

Commitments and Contingencies - Schedule of Gross Assets under Capital Lease (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Capital Leased Assets [Line Items]
Total gross assets under capital lease	$ 13,159	$ 13,159
Land, Buildings and Improvements
Capital Leased Assets [Line Items]
Total gross assets under capital lease	9,133	9,133
Machinery and Equipment
Capital Leased Assets [Line Items]
Total gross assets under capital lease	$ 4,026	$ 4,026

Future Minimum Lease Payments u

Future Minimum Lease Payments under Operating and Capital Leases (Details) $ in Thousands	Dec. 31, 2016USD ($)
Operating Leases
2,017	$ 4,519
2,018	3,202
2,019	1,913
2,020	240
2,021	125
Thereafter	4,267
Total minimum lease payments	14,266
Capital Leases
2,017	1,294	[1]
2,018	864	[1]
2,019	887	[1]
2,020	907	[1]
2,021	907	[1]
Thereafter	7,232	[1]
Total minimum lease payments	$ 12,091	[1]
[1]	Capital lease payments include interest payments of $3.2 million

Future Minimum Lease Payment112

Future Minimum Lease Payments under Operating and Capital Leases (Parenthetical) (Details) $ in Millions	Dec. 31, 2015USD ($)
Commitments And Contingencies Disclosure [Abstract]
Capital lease payments interest included in payment	$ 3.2

Segment Information - Additiona

Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2016CustomerSegment	Dec. 31, 2015Customer	Dec. 31, 2014Customer
Segment Reporting [Abstract]
Number of reportable segments | Segment	3
Number of customers exceeded ten percentage of revenue | Customer	0	0	0

Revenue, Gross Profit and Opera

Revenue, Gross Profit and Operating Income (Loss) from Continuing Operations by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenue	$ 384,758	$ 373,598	$ 364,706
Gross Profit	162,452	157,890	150,167
Operating Income (Loss) from Continuing Operations	32,563	28,933	(16,806)
Photonics
Segment Reporting Information [Line Items]
Revenue	174,158	168,331	177,726
Gross Profit	76,696	73,602	74,224
Operating Income (Loss) from Continuing Operations	34,825	35,971	33,053
Vision
Segment Reporting Information [Line Items]
Revenue	122,250	124,725	122,187
Gross Profit	47,181	48,966	48,678
Operating Income (Loss) from Continuing Operations	(1,277)	(2,057)	(43,079)
Precision Motion
Segment Reporting Information [Line Items]
Revenue	88,350	80,542	64,793
Gross Profit	40,044	36,709	28,333
Operating Income (Loss) from Continuing Operations	21,101	16,877	13,023
Unallocated Corporate and Shared Services
Segment Reporting Information [Line Items]
Gross Profit	(1,469)	(1,387)	(1,068)
Operating Income (Loss) from Continuing Operations	$ (22,086)	$ (21,858)	$ (19,803)

Depreciation and Amortization b

Depreciation and Amortization by Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Depreciation and Amortization
Depreciation and amortization	$ 20,973	$ 20,196	$ 24,421
Photonics
Depreciation and Amortization
Depreciation and amortization	6,738	6,083	6,481
Vision
Depreciation and Amortization
Depreciation and amortization	10,402	8,599	13,254
Precision Motion
Depreciation and Amortization
Depreciation and amortization	2,439	2,533	1,943
Unallocated Corporate and Shared Services
Depreciation and Amortization
Depreciation and amortization	$ 1,394	$ 2,981	$ 2,743

Accounts Receivable and Invento

Accounts Receivable and Inventory by Reportable Segments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts Receivable
Total accounts receivable	$ 63,769	$ 57,188
Inventory
Total inventory	59,745	59,566
Total segment assets	123,514	116,754
Photonics
Accounts Receivable
Total accounts receivable	28,886	21,763
Inventory
Total inventory	28,976	29,501
Vision
Accounts Receivable
Total accounts receivable	22,885	21,691
Inventory
Total inventory	20,656	19,583
Precision Motion
Accounts Receivable
Total accounts receivable	11,998	13,734
Inventory
Total inventory	$ 10,113	$ 10,482

Total Assets by Reportable Segm

Total Assets by Reportable Segments (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
ASSETS
Total segment assets	$ 123,514	$ 116,754
Cash and cash equivalents	68,108	59,959	$ 51,146	$ 60,980
Prepaid income taxes and income taxes receivable	2,058	2,510
Prepaid expenses and other current assets	5,570	5,989
Property, plant and equipment, net	35,421	40,550
Deferred tax assets	8,593	7,885
Other assets	12,502	12,673
Intangible assets, net	61,743	66,269
Goodwill	108,128	103,456
Total assets	$ 425,637	$ 416,045

Schedule of Geographic Revenue

Schedule of Geographic Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenue	$ 384,758	$ 373,598	$ 364,706
Percentage of Total	100.00%	100.00%	100.00%
UNITED STATES
Segment Reporting Information [Line Items]
Revenue	$ 154,756	$ 154,825	$ 140,973
Percentage of Total	40.20%	41.40%	38.70%
GERMANY
Segment Reporting Information [Line Items]
Revenue	$ 55,940	$ 54,743	$ 59,029
Percentage of Total	14.50%	14.70%	16.20%
Rest Of Europe
Segment Reporting Information [Line Items]
Revenue	$ 51,705	$ 48,277	$ 54,308
Percentage of Total	13.40%	12.90%	14.90%
CHINA
Segment Reporting Information [Line Items]
Revenue	$ 44,225	$ 38,491	$ 40,792
Percentage of Total	11.50%	10.30%	11.20%
Rest of Asia-Pacific
Segment Reporting Information [Line Items]
Revenue	$ 60,104	$ 62,467	$ 58,830
Percentage of Total	15.60%	16.70%	16.10%
Other Countries
Segment Reporting Information [Line Items]
Revenue	$ 18,028	$ 14,795	$ 10,774
Percentage of Total	4.80%	4.00%	2.90%

Summary of Long-lived Assets (D

Summary of Long-lived Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	$ 35,421	$ 40,550
UNITED STATES
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	29,509	34,907
Europe
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	4,588	4,014
CHINA
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	1,286	1,593
Asia Pacific And Other Non Us Countries
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	$ 38	$ 36

Subsequent Events - Additional

Subsequent Events - Additional Information (Details) £ in Millions	Jan. 10, 2017USD ($)	Jan. 10, 2017GBP (£)	Mar. 31, 2017USD ($)
Subsequent Event | Laser Quantum
Subsequent Event [Line Items]
Percentage of shares acquired	35.00%	35.00%
Total purchase price	$ 31,800,000	£ 25.5
Percentage of equity interest held before acquisition	41.00%	41.00%
Percentage of equity interest held after acquisition	76.00%	76.00%
Subsequent Event | Laser Quantum | Revolving Credit Facility
Subsequent Event [Line Items]
Amount draw-down to finance acquisition	$ 30,000,000
Subsequent Event | Thing Magic
Subsequent Event [Line Items]
Total purchase price	19,200,000
Subsequent Event | Thing Magic | Revolving Credit Facility
Subsequent Event [Line Items]
Amount draw-down to finance acquisition	$ 12,000,000
Scenario, Forecast | Minimum | Laser Quantum
Subsequent Event [Line Items]
Pre-tax gain on excess fair value of equity interest held			$ 25,000,000
Scenario, Forecast | Maximum | Laser Quantum
Subsequent Event [Line Items]
Pre-tax gain on excess fair value of equity interest held			$ 28,000,000