Fei (FEIC) 10-Q 2 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 27, 2015	Oct. 26, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	FEI CO
Entity Central Index Key	914,329
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 27, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		40,855,777

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 381,858	$ 300,507
Short-term investments in marketable securities	36,015	61,688
Short-term restricted cash	23,444	15,698
Receivables, net of allowances for doubtful accounts of $2,977 and $2,990	208,909	227,354
Inventories	191,648	176,440
Deferred tax assets	8,652	8,225
Other current assets	31,050	35,503
Total current assets	881,576	825,415
Non-current investments in marketable securities	34,016	85,865
Long-term restricted cash	24,758	38,369
Property, plant and equipment, net of accumulated depreciation of $129,070 and $132,807	152,919	163,794
Intangible assets, net of accumulated amortization of $34,572 and $28,930	37,815	54,111
Goodwill	145,639	170,773
Deferred tax assets	8,129	6,605
Non-current inventories	47,401	50,731
Other assets, net	19,001	22,155
Total Assets	1,351,254	1,417,818
Current Liabilities:
Accounts payable	67,788	78,308
Accrued payroll liabilities	37,304	38,599
Accrued warranty reserves	13,159	13,005
Short-term deferred revenue	107,485	96,924
Income taxes payable	4,896	5,299
Accrued restructuring, reorganization, relocation and severance	858	9,161
Other current liabilities	58,289	56,146
Total current liabilities	289,779	297,442
Long-term deferred revenue	39,765	34,021
Deferred tax liabilities	4,694	9,576
Other liabilities	$ 31,752	$ 35,454
Commitments and contingencies
Shareholders’ Equity:
Preferred stock - 500 shares authorized; none issued and outstanding	$ 0	$ 0
Common stock - 70,000 shares authorized; 41,065 and 41,797 shares issued and outstanding, no par value	556,452	607,250
Retained earnings	501,944	461,586
Accumulated other comprehensive loss	(73,132)	(27,511)
Total Shareholders’ Equity	985,264	1,041,325
Total Liabilities and Shareholders’ Equity	$ 1,351,254	$ 1,417,818

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Assets
Allowance for doubtful accounts	$ 2,977	$ 2,990
Accumulated depreciation	129,070	132,807
Accumulated amortization	$ 34,572	$ 28,930
Shareholders’ Equity:
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	70,000,000	70,000,000
Common stock, shares issued	41,065,000	41,797,000
Common stock, shares outstanding	41,065,000	41,797,000
Common stock, no par value	$ 0	$ 0

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Net sales:
Products	$ 151,843	$ 169,131	$ 479,487	$ 517,459
Service	60,718	58,625	178,079	173,517
Total net sales	212,561	227,756	657,566	690,976
Cost of sales:
Products	74,639	83,653	234,965	262,327
Service	33,645	35,522	100,948	103,893
Total cost of sales	108,284	119,175	335,913	366,220
Gross profit	104,277	108,581	321,653	324,756
Operating expenses:
Research and development	23,825	25,312	70,275	77,178
Selling, general and administrative	43,467	49,463	132,382	148,513
Impairment of goodwill and long-lived assets	26,596	0	26,596	0
Restructuring, reorganization, relocation and severance	(423)	7,699	(565)	11,259
Total operating expenses	93,465	82,474	228,688	236,950
Operating income	10,812	26,107	92,965	87,806
Other expense:
Interest income	300	226	765	599
Interest expense	(191)	(155)	(425)	(427)
Other, net	(1,481)	(902)	(3,269)	(2,079)
Total other expense, net	(1,372)	(831)	(2,929)	(1,907)
Income before income taxes	9,440	25,276	90,036	85,899
Income tax (benefit) expense	(978)	3,629	14,274	14,228
Net income	$ 10,418	$ 21,647	$ 75,762	$ 71,671
Basic net income per share	$ 0.25	$ 0.52	$ 1.82	$ 1.70
Diluted net income per share	0.25	0.51	1.80	1.68
Cash dividends declared per share	$ 0.3	$ 0.25	$ 0.85	$ 0.62
Shares used in per share calculations:
Basic (in shares)	41,404	41,891	41,624	42,053
Diluted (in shares)	41,820	42,465	42,050	42,624

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 10,418	$ 21,647	$ 75,762	$ 71,671
Other comprehensive income (loss), net of taxes:
Change in cumulative translation adjustment	(8,818)	(37,778)	(47,842)	(39,534)
Change in unrealized (loss) gain on available-for-sale securities	(8)	(52)	40	(12)
Change in minimum pension liability	8	45	79	78
Changes due to cash flow hedging instruments:
Net loss on hedge instruments	(1,151)	(5,475)	(6,259)	(7,250)
Reclassification to net income of previously deferred losses related to hedge derivatives instruments	2,494	2,534	8,361	4,163
Comprehensive income (loss)	$ 2,943	$ (19,079)	$ 30,141	$ 29,116

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Cash flows from operating activities:
Net income	$ 75,762	$ 71,671
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	18,364	22,379
Amortization	8,480	10,478
Stock-based compensation	16,615	17,456
Impairment of goodwill and long-lived assets	26,596	322
Other	(65)	0
Income taxes receivable, net	(4,702)	(4,010)
Deferred income taxes	(6,756)	(2,275)
Decrease (increase), net of acquisitions, in:
Receivables, net	11,542	(27,840)
Inventories	(31,618)	(26,772)
Other assets	8,393	(4,882)
Increase (decrease), net of acquisitions, in:
Accounts payable	(7,278)	9,655
Accrued payroll liabilities	(1,625)	(9,872)
Accrued warranty reserves	477	(288)
Deferred revenue	21,931	11,534
Accrued restructuring, reorganization, relocation and severance	(7,689)	6,709
Other liabilities	6,306	(1,667)
Net cash provided by operating activities	134,733	72,598
Cash flows from investing activities:
Decrease (increase) in restricted cash	1,616	(3,034)
Acquisition of property, plant and equipment	(10,109)	(35,429)
Payments for acquisitions, net of cash acquired	(5,377)	(65,049)
Purchase of investments in marketable securities	(48,240)	(189,621)
Redemption of investments in marketable securities	125,902	175,424
Purchase of patents	(2,436)	(736)
Net cash provided by (used in) investing activities	61,356	(118,445)
Cash flows from financing activities:
Dividends paid on common stock	(33,340)	(20,619)
Withholding taxes paid on issuance of vested restricted stock units	(3,115)	(1,784)
Proceeds from exercise of stock options and employee stock purchases	10,856	10,628
Excess tax benefit for share based payment arrangements	934	2,096
Repurchases of common stock	(72,575)	(40,315)
Net cash used in financing activities	(97,240)	(49,994)
Effect of exchange rate changes	(17,498)	(15,888)
Increase (decrease) in cash and cash equivalents	81,351	(111,729)
Cash and cash equivalents:
Beginning of period	300,507	384,170
End of period	381,858	272,441
Supplemental Cash Flow Information:
Cash paid for income taxes, net	22,422	14,458
Cash paid for interest	279	261
Increase in fixed assets related to transfers from inventories	4,932	4,345
Dividends declared but not paid	12,453	10,461
Accrued purchases of plant and equipment	1,675	986
Accrued repurchases of common stock	$ 1,095	$ 0

Organization and Basis of Prese

Organization and Basis of Presentation	9 Months Ended
	Sep. 27, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	ORGANIZATION AND BASIS OF PRESENTATION Nature of Business We are a leading supplier of scientific instruments and related services for nanoscale applications and solutions for industry and science. We report our revenue based on a group structure organization, which we categorize as the Industry Group and the Science Group . Our products include transmission electron microscopes (“TEMs”); scanning electron microscopes (“SEMs”); DualBeam TM systems which combine a SEM and a focused ion beam system (“FIB”) on a single platform; stand-alone FIBs; high-performance optical microscopes, pore-scale micro computed tomography (“microCT”) equipment, three-dimensional modeling software, and service and components to support these products. TEMs provide the highest resolution images of samples and their internal structure, down to the atomic level. SEMs provide detailed images of the surface and shape of samples. Optical microscopes provide a wider field of view than SEMs and TEMs. DualBeams and FIBs image, manipulate, mill and deposit material for a variety of purposes, including preparation of samples for TEMs. Substantially all of these product categories are sold into all of our markets. Individual models of our products are increasingly designed to provide specific solutions and applications in each of our markets. Our DualBeam systems include models that have wafer handling capability and are purchased by semiconductor equipment manufacturers (“wafer-level DualBeam systems”) and models that have small stages and are sold to customers in several markets (“small-stage DualBeam systems”). Our significant research and development and manufacturing operations are located in Hillsboro, Oregon; Eindhoven, The Netherlands; and Brno, Czech Republic; and our software development is managed principally from Bordeaux, France. Our sales and service operations are conducted in the United States (U.S.) and approximately 50 other countries around the world. We also sell our products through independent agents, distributors and representatives in additional countries. Basis of Presentation The consolidated financial statements include the accounts of FEI Company and our wholly-owned subsidiaries (collectively, “FEI”). All significant intercompany balances and transactions have been eliminated in consolidation. The accompanying consolidated financial statements and condensed footnotes have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments considered necessary for fair presentation have been included. The results of operations for the thirteen and thirty-nine week periods ended September 27, 2015 are not necessarily indicative of the results to be expected for the full year. For further information, refer to the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2014 , which was filed with the Securities and Exchange Commission (“SEC”) on February 23, 2015 . Use of Estimates in Financial Reporting The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period. Significant accounting policies and estimates underlying the accompanying consolidated financial statements include: • the timing of revenue recognition; • valuations of excess and obsolete inventory; • the lives and recoverability of equipment and other long-lived assets; • the valuation of goodwill; • restructuring, reorganization, relocation and severance costs; • tax valuation allowances and unrecognized tax benefits; • stock-based compensation; and • accounting for derivatives. It is reasonably possible that management's estimates may change in the future. Reclassifications Certain reclassifications to prior year consolidated financial statements have been made to conform to current period presentation. These reclassifications had no effect on our consolidated statements of operations.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 27, 2015
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE Following is a reconciliation of basic earnings per share (“EPS”) and diluted EPS (in thousands, except per share amounts): Thirteen Weeks Ended Thirteen Weeks Ended September 27, 2015 September 28, 2014 Net Income Shares Per Share Amount Net Income Shares Per Share Amount Basic EPS $ 10,418 41,404 $ 0.25 $ 21,647 41,891 $ 0.52 Dilutive effect of stock options, restricted stock units, and shares issuable to Philips — 416 — — 574 (0.01 ) Diluted EPS $ 10,418 41,820 $ 0.25 $ 21,647 42,465 $ 0.51 Thirty-Nine Weeks Ended Thirty-Nine Weeks Ended September 27, 2015 September 28, 2014 Net Shares Per Share Net Shares Per Share Basic EPS $ 75,762 41,624 $ 1.82 $ 71,671 42,053 $ 1.70 Dilutive effect of stock options, restricted stock units, and shares issuable to Philips — 426 (0.02 ) — 571 (0.02 ) Diluted EPS $ 75,762 42,050 $ 1.80 $ 71,671 42,624 $ 1.68 The following table sets forth the schedule of anti-dilutive securities excluded from the computation of diluted EPS (number of shares, in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Stock options 659 361 498 246 Restricted stock units 10 10 12 8

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 27, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION Employee Share Purchase Plan At our 2015 Annual Meeting of Shareholders, which was held on May 7, 2015 , our shareholders approved an amendment to our Employee Share Purchase Plan to increase the number of shares of our common stock reserved for issuance under the plan from 4,200,000 to 4,450,000 . 1995 Stock Incentive Plan Also at our 2015 Annual Meeting of Shareholders, our shareholders approved an amendment to our 1995 Stock Incentive Plan (the “1995 Plan”) to increase the number of shares of our common stock reserved for issuance under the plan from 11,250,000 to 11,500,000 . The following table sets forth certain information regarding the 1995 Plan: September 27, Shares available for grant 1,722,912 Shares of common stock reserved for issuance pursuant to outstanding exercisable securities 3,370,188 The following table sets forth certain information regarding all options outstanding and exercisable: September 27, 2015 Options Outstanding Options Exercisable Number 999,468 302,460 Weighted average exercise price $ 69.15 $ 52.62 Aggregate intrinsic value $ 9.7 million $ 7.0 million Weighted average remaining contractual term 5.1 years 3.5 years The following table sets forth certain information regarding all RSUs nonvested and expected to vest: September 27, 2015 RSUs Nonvested RSUs Expected to Vest Number 647,808 575,941 Weighted average grant date per share fair value $ 74.36 $ 73.64 Aggregate intrinsic value $ 46.8 million $ 41.6 million Weighted average remaining term to vest 1.4 years 1.3 years As of September 27, 2015 , unrecognized stock-based compensation related to outstanding, but unvested stock options and RSUs was $45.1 million , which will be recognized over the weighted average remaining vesting period of 1.9 years . Stock-Based Compensation Expense Our stock-based compensation expense was included in our consolidated statements of operations as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Cost of sales $ 925 $ 912 $ 2,514 $ 2,495 Research and development 742 762 2,031 2,092 Selling, general and administrative 4,454 4,820 12,070 12,869 Total stock-based compensation $ 6,121 $ 6,494 $ 16,615 $ 17,456

Credit Facilities and Restricte

Credit Facilities and Restricted Cash	9 Months Ended
	Sep. 27, 2015
Credit Facilities And Restricted Cash
Credit Facilities and Restricted Cash	CREDIT FACILITIES AND RESTRICTED CASH Multibank Credit Agreement We have a multibank credit agreement (the “Credit Agreement”), which provides for a $100.0 million secured revolving credit facility, including a $50.0 million subfacility for the issuance of letters of credit. The Credit Agreement expires in April 2016 . We may, upon notice to JPMorgan Chase Bank, N.A., the Administrative Agent, request to increase the revolving loan commitments by an aggregate amount of up to $50.0 million with new or additional commitments subject only to the consent of the lender(s) providing the new or additional commitments, for a total secured credit facility of up to $150.0 million . As of September 27, 2015 , there were no revolving loans or letters of credit outstanding under the Credit Agreement, we were in compliance with all covenants and we were not in default under the Credit Agreement. Credit Facility In July 2015, we entered into a credit facility agreement (the “Credit Facility”) with HSBC Bank plc (“HSBC”), whereby HSBC has provided us with a revocable, uncommitted credit facility up to an amount of 25.0 million euro. The purpose of this facility is to provide a more efficient means of issuing guarantees to our customers when required by contractual terms. Under the terms of the Credit Facility, when requested, HSBC will issue bank guarantees on behalf of the company and our affiliates. Issuance of the guarantee does not create a liability to the company unless it is called by the customer, at which point we would record a liability for the amount that is due under the guarantee to the bank. As of September 27, 2015 , HSBC has issued $4.5 million in guarantees under the Credit Facility and we have no liabilities outstanding under the Credit Facility. Restricted Cash As part of our contracts with certain customers, we are required to provide letters of credit or bank guarantees which these customers can draw against in the event we do not perform in accordance with our contractual obligations. Bank guarantees and letters of credit outstanding as of September 27, 2015 were approximately $53.9 million . Restricted cash balances securing bank guarantees that expire within 12 months of the balance sheet date are recorded as a current asset on our consolidated balance sheets. Restricted cash balances securing bank guarantees that expire beyond 12 months from the balance sheet date are recorded as long-term restricted cash on our consolidated balance sheets.

Inventories

Inventories	9 Months Ended
	Sep. 27, 2015
Inventory Disclosure [Abstract]
Inventories	INVENTORIES Inventories are stated at the lower of cost or market, with cost determined by standard cost methods, which approximate the first-in, first-out method. Inventory costs include material, labor and manufacturing overhead. Service inventories that exceed the estimated requirements for the next 12 months based on recent usage levels are reported as a long-term asset. Management has established inventory reserves based on estimates of excess and/or obsolete current and non-current inventory. Inventories consisted of the following (in thousands): September 27, December 31, Raw materials and assembled parts $ 59,728 $ 61,644 Service inventories, estimated current requirements 11,655 12,398 Work-in-process 83,061 76,402 Finished goods 37,204 25,996 Total current inventories $ 191,648 $ 176,440 Non-current inventories $ 47,401 $ 50,731

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 27, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill The roll-forward of activity related to our goodwill was as follows (in thousands): Thirty-Nine Weeks Ended September 27, September 28, Balance, beginning of period $ 170,773 $ 136,152 Goodwill additions 4,100 46,880 Goodwill impairment (18,156 ) — Goodwill adjustments (11,078 ) (5,212 ) Balance, end of period $ 145,639 $ 177,820 Goodwill represents the excess of the purchase price over the estimated fair value of the net assets acquired in connection with our acquisitions. Additions to goodwill represent goodwill from acquisitions made during the period. See further discussion of goodwill impairment below. Adjustments to goodwill include translation adjustments resulting from fluctuations in the value of goodwill held in currencies other than U.S. dollars, as well as adjustments made for the finalization of the purchase price allocations. Acquisition of Eisenberg Bros Ltd. On January 9, 2015 we acquired certain assets and liabilities of Eisenberg Bros Ltd. (“EB”), which previously operated as our exclusive agent in Israel of FEI products and services. The total purchase price of the acquisition was $5.4 million . We paid $0.2 million in transaction costs, which were expensed as incurred and are recorded in selling, general and administrative costs in our consolidated statements of operations. The total purchase price was allocated to the net tangible and intangible assets acquired based on their preliminary fair values as of January 9, 2015 . The fair value of net tangible liabilities assumed was $0.1 million and the fair value of net intangible assets acquired was $1.4 million , which consisted solely of customer relationships that are being amortized over a period of 5 years. The excess of the purchase price over the fair value of the net assets acquired was $4.1 million , which was recorded as goodwill in the Industry Group and is primarily related to expected future cash flows from synergies arising from the establishment of a sales and service workforce in Israel. No pro forma financial information has been provided for this acquisition as it is not material. Impairment of Goodwill and Long-Lived Assets In accordance with Accounting Standards Codification 350 (“ASC 350”), Intangibles - Goodwill and Other , we perform an impairment analysis of goodwill and other indefinite lived intangible assets on an annual basis and whenever events or changes in circumstances indicate that it is more likely than not that these assets may be impaired. The continued decline in oil prices has adversely affected our oil and gas business within our Industry Group segment, resulting in lower expected future revenue, operating income, and cash flow. In the thirteen weeks ended September 27, 2015 , we updated our strategic plan for the oil and gas business and as a result reduced our forecasted cash flows. This change was deemed to be a triggering event for impairment testing of both oil and gas long-lived assets and goodwill within our Industry Group. Accordingly, we performed a goodwill impairment test following the two step process defined in ASC 350. We have recognized preliminary impairment charges of $8.4 million on developed technology intangible assets and $18.2 million on goodwill. The total preliminary impairment charge of $26.6 million is included in impairment of goodwill and long-lived assets on our consolidated statements of operations within operating expenses for the thirteen and thirty-nine week periods ended September 27, 2015 . In performing step one of the two step impairment test, we first assessed the long-lived assets within the reporting unit for impairment. This assessment was done at the lowest level for which identifiable cash flows are available. In order to determine the fair value of the reporting unit, we first assessed the fair value of the existing intangible assets using discounted cash flow models based on estimated future revenue, operating income, and cash flow, as well as the relief from royalty method. The preliminary impairment charges on the developed technology assets were also based on revised lower expectations about future revenues from certain product and service offerings to oil and gas customers. To calculate the fair value of the reporting unit we used several different methods, including discounted cash flow models and multiples of revenue based on comparable industry participants and transactions. Our determination of the fair value of the reporting unit incorporates multiple assumptions, including future business growth, earnings projections, and the weighted average cost of capital used for purposes of discounting. The result of the analysis showed that the carrying value was in excess of the fair value of the reporting unit. This was due to revised lower short-term expectations about future revenue, operating income, cash flows for the oil and gas business. In the second step, the fair value of the reporting unit is allocated to all of the assets and liabilities of the reporting unit to determine an implied goodwill value. This allocation is similar to a purchase price allocation performed in purchase accounting. If the carrying amount of the reporting unit goodwill exceeds the implied goodwill value, an impairment loss should be recognized in an amount equal to that excess. The excess of the carrying value of the reporting unit goodwill exceeded the fair value of goodwill by $18.2 million . Due to the complexities inherent in the required fair value analysis, we were not able to finalize the impairment calculations prior to reporting on Form 10-Q for the thirteen weeks ended September 27, 2015 ; however, we determined that an impairment loss could be reasonably estimated. As a result, the impairment charges that have been recognized in the thirteen week period ended September 27, 2015 are preliminary. We are in the process of finalizing the calculation of reporting unit fair value and the carrying value of intangible assets, and expect to finalize the impairment charges in the fourth quarter of 2015. It is reasonably possible the final impairment charges will differ materially from the amounts recorded in the thirteen weeks ended September 27, 2015 . Other Intangible Assets Patents, trademarks and other acquired intangible assets are amortized using the straight-line method over their estimated useful lives of 2 to 10 years. Customer relationships are amortized using the straight-line method over their estimated useful lives of 5 to 10 years. Developed technology is amortized using the straight-line method over the estimated useful life of the related technology, which ranges from 5.5 to 10 years. The gross amount of our other acquired intangible assets and the related accumulated amortization was as follows (in thousands): September 27, December 31, Patents, trademarks and other $ 26,687 $ 25,333 Accumulated amortization (14,803 ) (12,805 ) Net patents, trademarks and other 11,884 12,528 Customer relationships 21,358 21,739 Accumulated amortization (7,445 ) (5,863 ) Net customer relationships 13,913 15,876 Developed technology 21,898 33,525 Accumulated amortization (9,880 ) (7,818 ) Net developed technology 12,018 25,707 Total intangible assets included in other long-term assets $ 37,815 $ 54,111 Amortization expense was as follows (in thousands): Thirty-Nine Weeks Ended September 27, September 28, Patents, trademarks and other $ 3,166 $ 3,850 Customer relationships 2,002 1,882 Developed technology 2,573 2,906 Total amortization expense $ 7,741 $ 8,638 Expected amortization, without consideration for foreign currency effects, is as follows over the next five years and thereafter (in thousands): Patents, Trademarks and Other Customer Relationships Developed Technology Total Remainder of 2015 $ 804 $ 671 $ 642 $ 2,117 2016 3,317 2,687 2,566 8,570 2017 2,873 2,340 2,034 7,247 2018 2,081 2,274 1,492 5,847 2019 1,789 1,897 1,492 5,178 Thereafter 1,020 4,044 3,792 8,856 Total future amortization expense $ 11,884 $ 13,913 $ 12,018 $ 37,815

Warranty Reserves

Warranty Reserves	9 Months Ended
	Sep. 27, 2015
Product Warranties Disclosures [Abstract]
Warranty Reserves	WARRANTY RESERVES Our products generally carry a one-year warranty. A reserve is established at the time of sale to cover estimated warranty costs and certain commitments for product upgrades as a component of cost of sales on our consolidated statements of operations. Our estimate of warranty cost is primarily based on our history of warranty repairs and maintenance, as applied to systems currently under warranty. For our new products without a history of known warranty costs, we estimate the expected costs based on our experience with similar product lines and technology. While most new products are extensions of existing technology, the estimate could change if new products require a significantly different level of repair and maintenance than similar products have required in the past. Our estimated warranty costs are reviewed and updated on a quarterly basis. Changes to the reserve occur as volume, product mix and warranty costs fluctuate. The following is a summary of warranty reserve activity (in thousands): Thirty-Nine Weeks Ended September 27, September 28, Balance, beginning of period $ 13,005 $ 12,705 Reductions for warranty costs incurred (11,224 ) (10,132 ) Warranties issued 11,691 9,826 Translation and changes in estimates (313 ) (271 ) Balance, end of period $ 13,159 $ 12,128

Income Taxes

Income Taxes	9 Months Ended
	Sep. 27, 2015
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our tax provision for the thirteen and thirty-nine week periods ended September 27, 2015 consisted primarily of taxes accrued in the U.S. and foreign jurisdictions, offset by a decrease in unrecognized tax benefits, interest and penalties of $6.1 million and $8.4 million , respectively, for tax credit positions taken on returns which were either effectively settled or closed for further examination due to the lapse of a statute of limitation. We continue to record a valuation allowance against a portion of our U.S. and foreign deferred tax assets as we do not believe it is more likely than not that we will be able to utilize the deferred tax assets in future periods. Deferred Income Taxes Net deferred tax assets were classified on the balance sheet as follows (in thousands): September 27, December 31, Deferred tax assets – current $ 8,652 $ 8,225 Deferred tax assets – non-current 8,129 6,605 Deferred tax liabilities – current (420 ) (218 ) Deferred tax liabilities – non-current (4,694 ) (9,576 ) Net deferred tax assets $ 11,667 $ 5,036 Valuation allowance $ 3,646 $ 4,350 Unrecognized Tax Benefits During the thirteen and thirty-nine week periods ended September 27, 2015 , unrecognized tax benefits, interest and penalties decreased by $3.8 million and $4.3 million , respectively, primarily due to the recognition of tax credit positions taken on returns which were either effectively settled or closed for further examination due to the lapse of a statute of limitation, offset by accruals for interest and penalties and uncertainty surrounding deferral of foreign income, domestic manufacturing deductions and foreign net operating losses. We recognize interest and penalties related to unrecognized tax benefits in tax expense. For our major tax jurisdictions, the following years were open for examination by the tax authorities as of September 27, 2015 : Jurisdiction Open Tax Years U.S. 2012 and forward The Netherlands 2011 and forward Czech Republic 2012 and forward

Related-Party Activity

Related-Party Activity	9 Months Ended
	Sep. 27, 2015
Related Party Transactions [Abstract]
Related-Party Activity	RELATED-PARTY ACTIVITY Related parties with which we had transactions during the thirteen and thirty-nine week periods ended September 27, 2015 were as follows: • one of the members of our Board of Directors served on the Board of Directors of Applied Materials, Inc.; • one of the members of our Board of Directors serves on the Board of Directors of Electro Scientific Industries, Inc.; • one of the members of our Board of Directors serves on the Supervisory Board of TMC BV; and • our Chief Executive Officer is on the Board of Trustees for the Oregon Health and Science University Foundation. Transactions with these related parties were as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended Sales to Related Parties September 27, September 28, September 27, September 28, Product sales: Applied Materials, Inc. $ — $ 230 $ 161 $ 2,572 Oregon Health and Science University 1 77 20 326 Electro Scientific Industries, Inc. 4 — 23 — Total product sales to related parties 5 307 204 2,898 Service sales: Applied Materials, Inc. — 256 526 611 Oregon Health and Science University 82 83 241 258 Total service sales to related parties 82 339 767 869 Total sales to related parties $ 87 $ 646 $ 971 $ 3,767 Purchases from Related Parties TMC BV $ 142 $ 395 $ 1,489 $ 1,685 Oregon Health and Science University — 41 11 119 Electro Scientific Industries, Inc. $ 19 $ — $ 19 $ — Total purchases from related parties $ 161 $ 436 $ 1,519 $ 1,804 Amounts due from (to) related parties were as follows (in thousands): September 27, TMC BV $ (230 ) Oregon Health and Science University 73 Electro Scientific Industries, Inc. (19 ) Due to related parties, net $ (176 )

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 27, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES From time to time, we may be a party to litigation arising in the ordinary course of business. Currently, we are not a party to any litigation that we believe would have a material adverse effect on our financial position, results of operations or cash flows. Purchase Obligations We have commitments under non-cancelable purchase orders, primarily relating to inventory, totaling $66.0 million at September 27, 2015 . These commitments expire at various times through the fourth quarter of 2019 .

Segment Information

Segment Information	9 Months Ended
	Sep. 27, 2015
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. Our chief operating decision maker is our Chief Executive Officer. We currently report our segments based on a group structure organization. Our segments are Industry Group and Science Group . The following tables summarize various financial amounts for each of our business segments (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Sales to External Customers: Industry Group $ 105,280 $ 107,058 $ 336,760 $ 340,722 Science Group 107,281 120,698 320,806 350,254 Total $ 212,561 $ 227,756 $ 657,566 $ 690,976 Gross Profit: Industry Group $ 55,184 $ 55,101 $ 176,541 $ 175,321 Science Group 49,093 53,480 145,112 149,435 Total $ 104,277 $ 108,581 $ 321,653 $ 324,756 September 27, December 31, Goodwill: Industry Group $ 59,648 $ 76,858 Science Group 85,991 93,915 Total $ 145,639 $ 170,773 Total Assets: Industry Group $ 428,561 $ 444,168 Science Group 438,145 470,899 Corporate and Eliminations 484,548 502,751 Total $ 1,351,254 $ 1,417,818 Market segment disclosures are presented to the gross profit level as this is the primary performance measure for which the segment general managers are responsible. Selling, general and administrative, research and development and other operating expenses are managed and reported at the corporate level and, because these costs are not directly tied to any individual market segment, they have not been allocated to the market segments. See the consolidated statements of operations for reconciliations from gross profit to income before income taxes. These reconciling items are not included in the measure of profit and loss for each reportable segment. In the thirteen week periods ended September 27, 2015 and September 28, 2014 , our top 10 customers accounted for approximately 32.0% and 31.8% of our total annual net revenue, respectively. In the thirty-nine week periods ended September 27, 2015 and September 28, 2014 , our top 10 customers accounted for approximately 29.9% and 29.2% of our total annual net revenue, respectively. No single customer accounted for more than 10% of net revenues during the thirteen and thirty-nine week periods ended September 27, 2015 and September 28, 2014 .

Restructuring, Reorganization,

Restructuring, Reorganization, Relocation and Severance	9 Months Ended
	Sep. 27, 2015
Restructuring and Related Activities [Abstract]
Restructuring, Reorganization, Relocation and Severance	RESTRUCTURING, REORGANIZATION, RELOCATION AND SEVERANCE Second Quarter 2014 Realignment During the second quarter of 2014, we implemented a resource realignment plan aimed at improving our operational efficiency by eliminating redundancies in sites and personnel resulting from recent acquisitions and expansion activities. We also shifted our resources to growing regions, such as Asia, and potential growth markets, such as structural biology, oil and gas, near-line semiconductor processing and metals research, in order to better position us to pursue our growth strategy. The realignment plan activities included the consolidation of our three Australia sites in Canberra; the closure of our facility in Delmont, Pennsylvania and relocation of those operations to our new facility in the Czech Republic; relocation of our Japan demonstration facility to our Shanghai facility; selective reductions in staffing, relocations and compensation adjustments related to the foregoing activities and other realignment of management resources. This plan was completed at the end of 2014 and we do not expect to incur any additional costs under this plan. The following table summarizes the costs incurred under our second quarter realignment plan: Thirteen Weeks Ended Thirty-Nine Weeks Ended Realignment Costs September 27, September 28, September 27, September 28, Inventory write-offs $ — $ 230 $ — $ 985 Acceleration of acquisition-related earn-out — — — 2,500 Impairment and other asset write-offs — 1,831 — 2,297 Restructuring activities (423 ) 7,699 (565 ) 9,927 Total $ (423 ) $ 9,760 $ (565 ) $ 15,709 These costs have been recorded in our consolidated statements of operations as follows: Thirteen Weeks Ended Thirty-Nine Weeks Ended Statement of Operations Classification September 27, September 28, September 27, September 28, Cost of sales $ — $ 230 $ — $ 985 Selling, general and administrative — 1,831 — 4,797 Restructuring, reorganization, relocation and severance (423 ) 7,699 (565 ) 9,927 Total $ (423 ) $ 9,760 $ (565 ) $ 15,709 First Quarter 2014 Restructuring During the first quarter of 2014, we engaged in a restructuring plan principally aimed at consolidating our sales force in Europe. The $1.3 million cost incurred in implementing the restructuring plan primarily consisted of severance and other employee termination related costs, and was incurred during the first quarter of 2014. We do not expect to incur any additional costs under this plan. Restructuring, Reorganization, Relocation and Severance Accrual The following table summarizes the charges, expenditures, write-offs and adjustments related to our restructuring, reorganization, relocation and severance accrual (in thousands): Thirty-Nine Weeks Ended September 27, 2015 Second Quarter 2014 Realignment Total Beginning accrued liability $ 9,161 $ 9,161 Adjustments to expense (565 ) (565 ) Expenditures (7,113 ) (7,113 ) Foreign currency impact (625 ) (625 ) Ending accrued liability $ 858 $ 858 Thirty-Nine Weeks Ended September 28, 2014 Second Quarter 2014 Realignment First Quarter 2014 Restructuring Group Structure Reorganization Total Beginning accrued liability $ — $ — $ 50 $ 50 Charged to expense, net 9,928 1,331 — 11,259 Expenditures (3,466 ) (1,331 ) (50 ) (4,847 ) Ending accrued liability $ 6,462 $ — $ — $ 6,462

Fair Value Measurements of Asse

Fair Value Measurements of Assets and Liabilities	9 Months Ended
	Sep. 27, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements of Assets and Liabilities	FAIR VALUE MEASUREMENTS OF ASSETS AND LIABILITIES Factors used in determining the fair value of our financial assets and liabilities are summarized into three broad categories: • Level 1 – quoted prices in active markets for identical securities as of the reporting date; • Level 2 – other significant directly or indirectly observable inputs, including quoted prices for similar securities, interest rates, prepayment speeds and credit risk; and • Level 3 – significant inputs that are generally less observable than objective sources, including our own assumptions in determining fair value. The factors or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. Following are the disclosures related to the fair value of our financial assets and (liabilities) (in thousands): September 27, 2015 Level 1 Level 2 Level 3 Total Available for sale marketable securities: Agency bonds (1) $ — $ 34,054 $ — $ 34,054 Certificates of deposit — 18,477 — 18,477 Municipal bonds — 721 — 721 Corporate bonds — 8,715 — 8,715 Trading securities: Equity securities – mutual funds 8,064 — — 8,064 Derivative contracts, net — 1,264 — 1,264 Total $ 8,064 $ 63,231 $ — $ 71,295 December 31, 2014 Level 1 Level 2 Level 3 Total Available for sale marketable securities: U.S. treasury notes $ 17,608 $ — $ — $ 17,608 Agency bonds (1) — 51,951 — 51,951 Commercial paper — 13,500 — 13,500 Certificates of deposit — 19,122 — 19,122 Municipal bonds — 27,119 — 27,119 Corporate bonds — 10,902 — 10,902 Trading securities: Equity securities – mutual funds 7,351 — — 7,351 Derivative contracts, net — (2,739 ) — (2,739 ) Total $ 24,959 $ 119,855 $ — $ 144,814 (1) Agency bonds are securities backed by U.S. government-sponsored entities. We use an income approach to value the assets and liabilities for outstanding derivative contracts using current market information as of the reporting date, such as spot rates, interest rate differentials and implied volatility. There were no transfers between fair value categories or changes to our valuation techniques during the thirty-nine week period ended September 27, 2015 . We believe the carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and other current liabilities are a reasonable approximation of the fair value of those financial instruments because of the nature of the underlying transactions and the short-term maturities involved.

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 27, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	DERIVATIVE INSTRUMENTS In the normal course of business, we are exposed to foreign currency risk and we use derivatives to mitigate financial exposure from movements in foreign currency exchange rates. The aggregate notional amount of outstanding derivative contracts were as follows (in thousands): September 27, December 31, Cash flow hedges $ 148,000 $ 222,000 Balance sheet hedges 152,945 153,499 Total outstanding derivative contracts $ 300,945 $ 375,499 The outstanding contracts at September 27, 2015 have varying maturities through the third quarter of 2016 . We do not enter into derivative financial instruments for speculative purposes. We attempt to mitigate derivative credit risk by transacting with highly rated counterparties. We have evaluated the credit and nonperformance risks associated with our derivative counterparties and believe them to be insignificant and not warranting a credit adjustment at September 27, 2015 . In addition, there are no credit contingent features in our derivative instruments. Balance Sheet Related In countries outside of the U.S., we transact business in U.S. dollars and in various other currencies. We attempt to mitigate our currency exposures for recorded transactions by using forward exchange contracts to reduce the risk that our future cash flows will be adversely affected by changes in exchange rates. We enter into forward sale or purchase contracts for foreign currencies to economically hedge specific cash, receivables or payables positions denominated in foreign currencies. Changes in fair value of derivatives entered into to mitigate the foreign exchange risks related to these balance sheet items are recorded in other income (expense) together with the transaction gain or loss from the respective balance sheet position as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Foreign currency loss, inclusive of the impact of derivatives $ (1,309 ) $ (644 ) $ (1,915 ) $ (1,597 ) Cash Flow Hedges We use zero cost and net purchased collar contracts and option contracts to hedge certain anticipated foreign currency exchange transactions. The foreign exchange hedging structure may extend, generally, up to a twenty-four month time horizon. The hedging transactions we undertake primarily limit our exposure to changes in the U.S. dollar/euro and the U.S. dollar/Czech koruna exchange rates. The hedges are designed to protect us as the U.S. dollar weakens, but also provide us with some flexibility if the dollar strengthens. These derivatives meet the criteria to be designated as hedges and, accordingly, we record the change in fair value of the effective portion of these hedge contracts relating to anticipated transactions in other comprehensive income rather than net income until the underlying hedged transaction affects net income. Gains and losses resulting from the ineffective portion of the hedge contracts, if any, are recognized as a component of net income. Gains and losses related to cash flow derivative contracts not designated as hedging instruments are recorded as a component of net income. Summary Our derivative instruments are subject to master netting arrangements and are presented net in our balance sheet. We do not have any financial collateral related to these netting arrangements. The effect of these netting arrangements on our balance sheet is as follows (in thousands): Offsetting of Derivative Assets Offsetting of Derivative Liabilities September 27, 2015 Gross Amounts of Recognized Assets Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Assets Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Liabilities Foreign exchange contracts designated as hedging instruments $ 2,681 $ (654 ) $ 2,027 $ — $ — $ — Foreign exchange contracts not designated as hedging instruments 788 (12 ) 776 1,768 (229 ) 1,539 Total $ 3,469 $ (666 ) $ 2,803 $ 1,768 $ (229 ) $ 1,539 Offsetting of Derivative Assets Offsetting of Derivative Liabilities December 31, 2014 Gross Amounts of Recognized Assets Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Assets Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Liabilities Foreign exchange contracts designated as hedging instruments $ — $ — $ — $ 3,283 $ (865 ) $ 2,418 Foreign exchange contracts not designated as hedging instruments 2,456 (670 ) 1,786 4,729 (2,622 ) 2,107 Total $ 2,456 $ (670 ) $ 1,786 $ 8,012 $ (3,487 ) $ 4,525 The effect of derivative instruments was as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended Foreign Exchange Contracts in Cash Flow Hedging Relationships September 27, September 28, September 27, September 28, Amount of gain/(loss): Recognized in AOCI (effective portion) $ (3,253 ) $ (6,757 ) $ (16,977 ) $ (11,016 ) Reclassified from AOCI into revenue (effective portion) — 1 (112 ) 47 Reclassified from AOCI into cost of sales (effective portion) (2,475 ) (2,486 ) (8,122 ) (4,152 ) Recognized in Other, net (ineffective portion and amount excluded from effectiveness testing) (19 ) (49 ) (127 ) (58 ) Foreign Exchange Contracts Not in Cash Flow Hedging Relationships Amount of gain/(loss): Recognized in Other, net $ (2,500 ) $ (2,018 ) $ (8,185 ) $ (5,763 ) The unrealized losses at September 27, 2015 are expected to be reclassified to net income during the next twelve months as a result of the underlying hedged transactions also being recorded in net income.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income by Component	9 Months Ended
	Sep. 27, 2015
Changes in Accumulated Other Comprehensive Income [Abstract]
Changes in Accumulated Other Comprehensive Income by Component	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT The following tables illustrate the disclosure of changes in the balances of each component of accumulated other comprehensive income (“AOCI”), as well as details the effect of reclassifications out of AOCI on the line items in our consolidated statements of operations by component (net of tax, in thousands): Thirteen Weeks Ended September 27, 2015 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ (61,565 ) $ 10 $ (727 ) $ (3,375 ) $ (65,657 ) Other comprehensive income before reclassifications (8,818 ) (8 ) 8 (1,151 ) (9,969 ) Amounts reclassified from AOCI to: Cost of goods sold — — — 2,475 2,475 Other, net — — — 19 19 Total reclassifications out of AOCI — — — 2,494 2,494 Net current period other comprehensive income (8,818 ) (8 ) 8 1,343 (7,475 ) Ending balance $ (70,383 ) $ 2 $ (719 ) $ (2,032 ) $ (73,132 ) Thirty-Nine Weeks Ended September 27, 2015 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ (22,541 ) $ (38 ) $ (798 ) $ (4,134 ) $ (27,511 ) Other comprehensive income before reclassifications (47,842 ) 40 79 (6,259 ) (53,982 ) Amounts reclassified from AOCI to: Revenue — — — 112 112 Cost of goods sold — — — 8,122 8,122 Other, net — — — 127 127 Total reclassifications out of AOCI — — — 8,361 8,361 Net current period other comprehensive income (47,842 ) 40 79 2,102 (45,621 ) Ending balance $ (70,383 ) $ 2 $ (719 ) $ (2,032 ) $ (73,132 ) Thirteen Weeks Ended September 28, 2014 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ 47,109 $ 29 $ (519 ) $ (1,320 ) $ 45,299 Other comprehensive income before reclassifications (37,778 ) (52 ) 45 (5,475 ) (43,260 ) Amounts reclassified from AOCI to: Revenue — — — (1 ) (1 ) Cost of goods sold — — — 2,486 2,486 Other, net — — — 49 49 Total reclassifications out of AOCI — — — 2,534 2,534 Net current period other comprehensive income (37,778 ) (52 ) 45 (2,941 ) (40,726 ) Ending balance $ 9,331 $ (23 ) $ (474 ) $ (4,261 ) $ 4,573 Thirty-Nine Weeks Ended September 28, 2014 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ 48,865 $ (11 ) $ (552 ) $ (1,174 ) $ 47,128 Other comprehensive income before reclassifications (39,534 ) (12 ) 78 (7,250 ) (46,718 ) Amounts reclassified from AOCI to: Revenue — — — (47 ) (47 ) Cost of goods sold — — — 4,152 4,152 Other, net — — — 58 58 Total reclassifications out of AOCI — — — 4,163 4,163 Net current period other comprehensive income (39,534 ) (12 ) 78 (3,087 ) (42,555 ) Ending balance $ 9,331 $ (23 ) $ (474 ) $ (4,261 ) $ 4,573

New Accounting Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 27, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	NEW ACCOUNTING PRONOUNCEMENTS ASU 2015-11 In July 2015, the FASB issued ASU No. 2015-11, Inventory: Simplifying the Measurement of Inventory . An entity using an inventory method other than last-in, first out (“LIFO”) or the retail inventory method should measure inventory at the lower of cost and net realizable value. The new guidance clarifies that net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. Early application is permitted for periods beginning after December 15, 2016, including interim reporting periods within that reporting period, and the new standard will become effective for us on January 1, 2017. We are evaluating the effect that this standard will have on our consolidated financial statements and related disclosures. ASU 2014-09 In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers , which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers: Deferral of the Effective Date . Early application is permitted for periods beginning after December 15, 2016, including interim reporting periods within that reporting period, and the new standard will become effective for us on January 1, 2018. The standard permits the use of either the retrospective or cumulative effect transition method. We are evaluating the effect that this standard will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 27, 2015
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS Proposed Acquisition On October 20, 2015 , we entered into an agreement to purchase DCG Systems, Inc. (“DCG”) for $160.0 million in cash. DCG, with 220 employees and headquarters in Fremont, California, is a leading supplier of electrical fault characterization, localization and editing tools, providing process development, yield ramp and failure analysis applications for a wide range of semiconductor and electronics manufacturers. The transaction is subject to customary closing conditions, regulatory approval and is expected to close prior to December 31, 2015.

Organization and Basis of Pre24

Organization and Basis of Presentation (Policies)	9 Months Ended
	Sep. 27, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation Policy	The consolidated financial statements include the accounts of FEI Company and our wholly-owned subsidiaries (collectively, “FEI”). All significant intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates Policy	The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenues and expenses during the reporting period.
Restricted Cash Policy	As part of our contracts with certain customers, we are required to provide letters of credit or bank guarantees which these customers can draw against in the event we do not perform in accordance with our contractual obligations. Bank guarantees and letters of credit outstanding as of September 27, 2015 were approximately $53.9 million . Restricted cash balances securing bank guarantees that expire within 12 months of the balance sheet date are recorded as a current asset on our consolidated balance sheets. Restricted cash balances securing bank guarantees that expire beyond 12 months from the balance sheet date are recorded as long-term restricted cash on our consolidated balance sheets.
Inventories Policy	Inventories are stated at the lower of cost or market, with cost determined by standard cost methods, which approximate the first-in, first-out method. Inventory costs include material, labor and manufacturing overhead. Service inventories that exceed the estimated requirements for the next 12 months based on recent usage levels are reported as a long-term asset. Management has established inventory reserves based on estimates of excess and/or obsolete current and non-current inventory.
Intangible Assets Policy	Patents, trademarks and other acquired intangible assets are amortized using the straight-line method over their estimated useful lives of 2 to 10 years. Customer relationships are amortized using the straight-line method over their estimated useful lives of 5 to 10 years. Developed technology is amortized using the straight-line method over the estimated useful life of the related technology, which ranges from 5.5 to 10 years.
Warranty Liabilities Policy	Our products generally carry a one-year warranty. A reserve is established at the time of sale to cover estimated warranty costs and certain commitments for product upgrades as a component of cost of sales on our consolidated statements of operations. Our estimate of warranty cost is primarily based on our history of warranty repairs and maintenance, as applied to systems currently under warranty. For our new products without a history of known warranty costs, we estimate the expected costs based on our experience with similar product lines and technology. While most new products are extensions of existing technology, the estimate could change if new products require a significantly different level of repair and maintenance than similar products have required in the past. Our estimated warranty costs are reviewed and updated on a quarterly basis. Changes to the reserve occur as volume, product mix and warranty costs fluctuate.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 27, 2015
Earnings Per Share [Abstract]
Earnings Per Share Reconciliation	Following is a reconciliation of basic earnings per share (“EPS”) and diluted EPS (in thousands, except per share amounts): Thirteen Weeks Ended Thirteen Weeks Ended September 27, 2015 September 28, 2014 Net Income Shares Per Share Amount Net Income Shares Per Share Amount Basic EPS $ 10,418 41,404 $ 0.25 $ 21,647 41,891 $ 0.52 Dilutive effect of stock options, restricted stock units, and shares issuable to Philips — 416 — — 574 (0.01 ) Diluted EPS $ 10,418 41,820 $ 0.25 $ 21,647 42,465 $ 0.51 Thirty-Nine Weeks Ended Thirty-Nine Weeks Ended September 27, 2015 September 28, 2014 Net Shares Per Share Net Shares Per Share Basic EPS $ 75,762 41,624 $ 1.82 $ 71,671 42,053 $ 1.70 Dilutive effect of stock options, restricted stock units, and shares issuable to Philips — 426 (0.02 ) — 571 (0.02 ) Diluted EPS $ 75,762 42,050 $ 1.80 $ 71,671 42,624 $ 1.68
Schedule of Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share	The following table sets forth the schedule of anti-dilutive securities excluded from the computation of diluted EPS (number of shares, in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Stock options 659 361 498 246 Restricted stock units 10 10 12 8

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 27, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Information Related to Stock-Based Compensation Plans	The following table sets forth certain information regarding the 1995 Plan: September 27, Shares available for grant 1,722,912 Shares of common stock reserved for issuance pursuant to outstanding exercisable securities 3,370,188
Schedule of Options Outstanding and Exercisable	The following table sets forth certain information regarding all options outstanding and exercisable: September 27, 2015 Options Outstanding Options Exercisable Number 999,468 302,460 Weighted average exercise price $ 69.15 $ 52.62 Aggregate intrinsic value $ 9.7 million $ 7.0 million Weighted average remaining contractual term 5.1 years 3.5 years
Schedule of Restricted Stock Units Nonvested and Expected to Vest	The following table sets forth certain information regarding all RSUs nonvested and expected to vest: September 27, 2015 RSUs Nonvested RSUs Expected to Vest Number 647,808 575,941 Weighted average grant date per share fair value $ 74.36 $ 73.64 Aggregate intrinsic value $ 46.8 million $ 41.6 million Weighted average remaining term to vest 1.4 years 1.3 years
Schedule of Stock-Based Compensation Expense	Our stock-based compensation expense was included in our consolidated statements of operations as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Cost of sales $ 925 $ 912 $ 2,514 $ 2,495 Research and development 742 762 2,031 2,092 Selling, general and administrative 4,454 4,820 12,070 12,869 Total stock-based compensation $ 6,121 $ 6,494 $ 16,615 $ 17,456

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 27, 2015
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consisted of the following (in thousands): September 27, December 31, Raw materials and assembled parts $ 59,728 $ 61,644 Service inventories, estimated current requirements 11,655 12,398 Work-in-process 83,061 76,402 Finished goods 37,204 25,996 Total current inventories $ 191,648 $ 176,440 Non-current inventories $ 47,401 $ 50,731

Goodwill and Other Intangible28

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 27, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill Activity	The roll-forward of activity related to our goodwill was as follows (in thousands): Thirty-Nine Weeks Ended September 27, September 28, Balance, beginning of period $ 170,773 $ 136,152 Goodwill additions 4,100 46,880 Goodwill impairment (18,156 ) — Goodwill adjustments (11,078 ) (5,212 ) Balance, end of period $ 145,639 $ 177,820
Schedule of Finite-Lived Intangible Assets by Major Class	The gross amount of our other acquired intangible assets and the related accumulated amortization was as follows (in thousands): September 27, December 31, Patents, trademarks and other $ 26,687 $ 25,333 Accumulated amortization (14,803 ) (12,805 ) Net patents, trademarks and other 11,884 12,528 Customer relationships 21,358 21,739 Accumulated amortization (7,445 ) (5,863 ) Net customer relationships 13,913 15,876 Developed technology 21,898 33,525 Accumulated amortization (9,880 ) (7,818 ) Net developed technology 12,018 25,707 Total intangible assets included in other long-term assets $ 37,815 $ 54,111
Schedule of Amortization Expense by Major Class	Amortization expense was as follows (in thousands): Thirty-Nine Weeks Ended September 27, September 28, Patents, trademarks and other $ 3,166 $ 3,850 Customer relationships 2,002 1,882 Developed technology 2,573 2,906 Total amortization expense $ 7,741 $ 8,638
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	Expected amortization, without consideration for foreign currency effects, is as follows over the next five years and thereafter (in thousands): Patents, Trademarks and Other Customer Relationships Developed Technology Total Remainder of 2015 $ 804 $ 671 $ 642 $ 2,117 2016 3,317 2,687 2,566 8,570 2017 2,873 2,340 2,034 7,247 2018 2,081 2,274 1,492 5,847 2019 1,789 1,897 1,492 5,178 Thereafter 1,020 4,044 3,792 8,856 Total future amortization expense $ 11,884 $ 13,913 $ 12,018 $ 37,815

Warranty Reserves (Tables)

Warranty Reserves (Tables)	9 Months Ended
	Sep. 27, 2015
Product Warranties Disclosures [Abstract]
Schedule of Warranty Reserve Activity	The following is a summary of warranty reserve activity (in thousands): Thirty-Nine Weeks Ended September 27, September 28, Balance, beginning of period $ 13,005 $ 12,705 Reductions for warranty costs incurred (11,224 ) (10,132 ) Warranties issued 11,691 9,826 Translation and changes in estimates (313 ) (271 ) Balance, end of period $ 13,159 $ 12,128

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 27, 2015
Income Tax Disclosure [Abstract]
Schedule of Deferred Tax Assets and Liabilities, Balance Sheet Classification	Net deferred tax assets were classified on the balance sheet as follows (in thousands): September 27, December 31, Deferred tax assets – current $ 8,652 $ 8,225 Deferred tax assets – non-current 8,129 6,605 Deferred tax liabilities – current (420 ) (218 ) Deferred tax liabilities – non-current (4,694 ) (9,576 ) Net deferred tax assets $ 11,667 $ 5,036 Valuation allowance $ 3,646 $ 4,350
Open Tax Years By Major Tax Jurisdiction	For our major tax jurisdictions, the following years were open for examination by the tax authorities as of September 27, 2015 : Jurisdiction Open Tax Years U.S. 2012 and forward The Netherlands 2011 and forward Czech Republic 2012 and forward

Related-Party Activity (Tables)

Related-Party Activity (Tables)	9 Months Ended
	Sep. 27, 2015
Related Party Transactions [Abstract]
Schedule of Transactions with Related Parties	Transactions with these related parties were as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended Sales to Related Parties September 27, September 28, September 27, September 28, Product sales: Applied Materials, Inc. $ — $ 230 $ 161 $ 2,572 Oregon Health and Science University 1 77 20 326 Electro Scientific Industries, Inc. 4 — 23 — Total product sales to related parties 5 307 204 2,898 Service sales: Applied Materials, Inc. — 256 526 611 Oregon Health and Science University 82 83 241 258 Total service sales to related parties 82 339 767 869 Total sales to related parties $ 87 $ 646 $ 971 $ 3,767 Purchases from Related Parties TMC BV $ 142 $ 395 $ 1,489 $ 1,685 Oregon Health and Science University — 41 11 119 Electro Scientific Industries, Inc. $ 19 $ — $ 19 $ — Total purchases from related parties $ 161 $ 436 $ 1,519 $ 1,804
Schedule of Amounts Due From (To) Related Parties	Amounts due from (to) related parties were as follows (in thousands): September 27, TMC BV $ (230 ) Oregon Health and Science University 73 Electro Scientific Industries, Inc. (19 ) Due to related parties, net $ (176 )

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 27, 2015
Segment Reporting [Abstract]
Schedule of Sales to External Customers and Gross Profit by Segment	The following tables summarize various financial amounts for each of our business segments (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Sales to External Customers: Industry Group $ 105,280 $ 107,058 $ 336,760 $ 340,722 Science Group 107,281 120,698 320,806 350,254 Total $ 212,561 $ 227,756 $ 657,566 $ 690,976 Gross Profit: Industry Group $ 55,184 $ 55,101 $ 176,541 $ 175,321 Science Group 49,093 53,480 145,112 149,435 Total $ 104,277 $ 108,581 $ 321,653 $ 324,756
Schedule of Goodwill and Total Assets by Segment	September 27, December 31, Goodwill: Industry Group $ 59,648 $ 76,858 Science Group 85,991 93,915 Total $ 145,639 $ 170,773 Total Assets: Industry Group $ 428,561 $ 444,168 Science Group 438,145 470,899 Corporate and Eliminations 484,548 502,751 Total $ 1,351,254 $ 1,417,818

Restructuring, Reorganization33

Restructuring, Reorganization, Relocation and Severance (Tables)	9 Months Ended
	Sep. 27, 2015
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	The following table summarizes the costs incurred under our second quarter realignment plan: Thirteen Weeks Ended Thirty-Nine Weeks Ended Realignment Costs September 27, September 28, September 27, September 28, Inventory write-offs $ — $ 230 $ — $ 985 Acceleration of acquisition-related earn-out — — — 2,500 Impairment and other asset write-offs — 1,831 — 2,297 Restructuring activities (423 ) 7,699 (565 ) 9,927 Total $ (423 ) $ 9,760 $ (565 ) $ 15,709 These costs have been recorded in our consolidated statements of operations as follows: Thirteen Weeks Ended Thirty-Nine Weeks Ended Statement of Operations Classification September 27, September 28, September 27, September 28, Cost of sales $ — $ 230 $ — $ 985 Selling, general and administrative — 1,831 — 4,797 Restructuring, reorganization, relocation and severance (423 ) 7,699 (565 ) 9,927 Total $ (423 ) $ 9,760 $ (565 ) $ 15,709
Schedule of Restructuring Reserve by Type of Cost	The following table summarizes the charges, expenditures, write-offs and adjustments related to our restructuring, reorganization, relocation and severance accrual (in thousands): Thirty-Nine Weeks Ended September 27, 2015 Second Quarter 2014 Realignment Total Beginning accrued liability $ 9,161 $ 9,161 Adjustments to expense (565 ) (565 ) Expenditures (7,113 ) (7,113 ) Foreign currency impact (625 ) (625 ) Ending accrued liability $ 858 $ 858 Thirty-Nine Weeks Ended September 28, 2014 Second Quarter 2014 Realignment First Quarter 2014 Restructuring Group Structure Reorganization Total Beginning accrued liability $ — $ — $ 50 $ 50 Charged to expense, net 9,928 1,331 — 11,259 Expenditures (3,466 ) (1,331 ) (50 ) (4,847 ) Ending accrued liability $ 6,462 $ — $ — $ 6,462

Fair Value Measurements of As34

Fair Value Measurements of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 27, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	Following are the disclosures related to the fair value of our financial assets and (liabilities) (in thousands): September 27, 2015 Level 1 Level 2 Level 3 Total Available for sale marketable securities: Agency bonds (1) $ — $ 34,054 $ — $ 34,054 Certificates of deposit — 18,477 — 18,477 Municipal bonds — 721 — 721 Corporate bonds — 8,715 — 8,715 Trading securities: Equity securities – mutual funds 8,064 — — 8,064 Derivative contracts, net — 1,264 — 1,264 Total $ 8,064 $ 63,231 $ — $ 71,295 December 31, 2014 Level 1 Level 2 Level 3 Total Available for sale marketable securities: U.S. treasury notes $ 17,608 $ — $ — $ 17,608 Agency bonds (1) — 51,951 — 51,951 Commercial paper — 13,500 — 13,500 Certificates of deposit — 19,122 — 19,122 Municipal bonds — 27,119 — 27,119 Corporate bonds — 10,902 — 10,902 Trading securities: Equity securities – mutual funds 7,351 — — 7,351 Derivative contracts, net — (2,739 ) — (2,739 ) Total $ 24,959 $ 119,855 $ — $ 144,814 (1) Agency bonds are securities backed by U.S. government-sponsored entities. We use an income approach to value the assets and liabilities for outstanding derivative contracts using current market information as of the reporting date, such as spot rates, interest rate differentials and implied volatility. There were no transfers between fair value categories or changes to our valuation techniques during the

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 27, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivative Positions	The aggregate notional amount of outstanding derivative contracts were as follows (in thousands): September 27, December 31, Cash flow hedges $ 148,000 $ 222,000 Balance sheet hedges 152,945 153,499 Total outstanding derivative contracts $ 300,945 $ 375,499
Schedule of Gain (Loss) Attributable to Foreign Exchange Rate Fluctuations	Changes in fair value of derivatives entered into to mitigate the foreign exchange risks related to these balance sheet items are recorded in other income (expense) together with the transaction gain or loss from the respective balance sheet position as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended September 27, September 28, September 27, September 28, Foreign currency loss, inclusive of the impact of derivatives $ (1,309 ) $ (644 ) $ (1,915 ) $ (1,597 )
Schedule of Derivatives Instruments, Offsetting in Balance Sheet	Our derivative instruments are subject to master netting arrangements and are presented net in our balance sheet. We do not have any financial collateral related to these netting arrangements. The effect of these netting arrangements on our balance sheet is as follows (in thousands): Offsetting of Derivative Assets Offsetting of Derivative Liabilities September 27, 2015 Gross Amounts of Recognized Assets Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Assets Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Liabilities Foreign exchange contracts designated as hedging instruments $ 2,681 $ (654 ) $ 2,027 $ — $ — $ — Foreign exchange contracts not designated as hedging instruments 788 (12 ) 776 1,768 (229 ) 1,539 Total $ 3,469 $ (666 ) $ 2,803 $ 1,768 $ (229 ) $ 1,539 Offsetting of Derivative Assets Offsetting of Derivative Liabilities December 31, 2014 Gross Amounts of Recognized Assets Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Assets Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Balance Sheet Net Amounts Presented in Other Current Liabilities Foreign exchange contracts designated as hedging instruments $ — $ — $ — $ 3,283 $ (865 ) $ 2,418 Foreign exchange contracts not designated as hedging instruments 2,456 (670 ) 1,786 4,729 (2,622 ) 2,107 Total $ 2,456 $ (670 ) $ 1,786 $ 8,012 $ (3,487 ) $ 4,525
Schedule of Derivative Instruments, Gain (Loss) in Statement of Operations	The effect of derivative instruments was as follows (in thousands): Thirteen Weeks Ended Thirty-Nine Weeks Ended Foreign Exchange Contracts in Cash Flow Hedging Relationships September 27, September 28, September 27, September 28, Amount of gain/(loss): Recognized in AOCI (effective portion) $ (3,253 ) $ (6,757 ) $ (16,977 ) $ (11,016 ) Reclassified from AOCI into revenue (effective portion) — 1 (112 ) 47 Reclassified from AOCI into cost of sales (effective portion) (2,475 ) (2,486 ) (8,122 ) (4,152 ) Recognized in Other, net (ineffective portion and amount excluded from effectiveness testing) (19 ) (49 ) (127 ) (58 ) Foreign Exchange Contracts Not in Cash Flow Hedging Relationships Amount of gain/(loss): Recognized in Other, net $ (2,500 ) $ (2,018 ) $ (8,185 ) $ (5,763 )

Changes in Accumulated Other 36

Changes in Accumulated Other Comprehensive Income by Component (Tables)	9 Months Ended
	Sep. 27, 2015
Changes in Accumulated Other Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income	The following tables illustrate the disclosure of changes in the balances of each component of accumulated other comprehensive income (“AOCI”), as well as details the effect of reclassifications out of AOCI on the line items in our consolidated statements of operations by component (net of tax, in thousands): Thirteen Weeks Ended September 27, 2015 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ (61,565 ) $ 10 $ (727 ) $ (3,375 ) $ (65,657 ) Other comprehensive income before reclassifications (8,818 ) (8 ) 8 (1,151 ) (9,969 ) Amounts reclassified from AOCI to: Cost of goods sold — — — 2,475 2,475 Other, net — — — 19 19 Total reclassifications out of AOCI — — — 2,494 2,494 Net current period other comprehensive income (8,818 ) (8 ) 8 1,343 (7,475 ) Ending balance $ (70,383 ) $ 2 $ (719 ) $ (2,032 ) $ (73,132 ) Thirty-Nine Weeks Ended September 27, 2015 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ (22,541 ) $ (38 ) $ (798 ) $ (4,134 ) $ (27,511 ) Other comprehensive income before reclassifications (47,842 ) 40 79 (6,259 ) (53,982 ) Amounts reclassified from AOCI to: Revenue — — — 112 112 Cost of goods sold — — — 8,122 8,122 Other, net — — — 127 127 Total reclassifications out of AOCI — — — 8,361 8,361 Net current period other comprehensive income (47,842 ) 40 79 2,102 (45,621 ) Ending balance $ (70,383 ) $ 2 $ (719 ) $ (2,032 ) $ (73,132 ) Thirteen Weeks Ended September 28, 2014 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ 47,109 $ 29 $ (519 ) $ (1,320 ) $ 45,299 Other comprehensive income before reclassifications (37,778 ) (52 ) 45 (5,475 ) (43,260 ) Amounts reclassified from AOCI to: Revenue — — — (1 ) (1 ) Cost of goods sold — — — 2,486 2,486 Other, net — — — 49 49 Total reclassifications out of AOCI — — — 2,534 2,534 Net current period other comprehensive income (37,778 ) (52 ) 45 (2,941 ) (40,726 ) Ending balance $ 9,331 $ (23 ) $ (474 ) $ (4,261 ) $ 4,573 Thirty-Nine Weeks Ended September 28, 2014 Foreign Currency Items Unrealized Gains and Losses on Available-for-Sale Securities Defined Benefit Pension Items Gains and Losses on Cash Flow Hedges Total Beginning Balance $ 48,865 $ (11 ) $ (552 ) $ (1,174 ) $ 47,128 Other comprehensive income before reclassifications (39,534 ) (12 ) 78 (7,250 ) (46,718 ) Amounts reclassified from AOCI to: Revenue — — — (47 ) (47 ) Cost of goods sold — — — 4,152 4,152 Other, net — — — 58 58 Total reclassifications out of AOCI — — — 4,163 4,163 Net current period other comprehensive income (39,534 ) (12 ) 78 (3,087 ) (42,555 ) Ending balance $ 9,331 $ (23 ) $ (474 ) $ (4,261 ) $ 4,573

Organization and Basis of Pre37

Organization and Basis of Presentation (Details)	Sep. 27, 2015country
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of countries in which entity operates	50

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Earnings Per Share Reconciliation
Basic EPS - net income	$ 10,418	$ 21,647	$ 75,762	$ 71,671
Basic EPS - shares	41,404	41,891	41,624	42,053
Basic EPS - per share amount	$ 0.25	$ 0.52	$ 1.82	$ 1.70
Dilutive effect of stock options, restricted stock units, and shares issuable to Philips - net income	$ 0	$ 0	$ 0	$ 0
Dilutive effect of stock options, restricted stock units, and shares issuable to Philips - shares	416	574	426	571
Dilutive effect of stock options, restricted stock units, and shares issuable to Philips - per share amount	$ 0	$ (0.01)	$ (0.02)	$ (0.02)
Diluted EPS - net income	$ 10,418	$ 21,647	$ 75,762	$ 71,671
Diluted EPS - shares	41,820	42,465	42,050	42,624
Diluted EPS - per share amount	$ 0.25	$ 0.51	$ 1.80	$ 1.68

Earnings Per Share - Antidilut

Earnings Per Share - Antidilutive Securities (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted EPS	659	361	498	246
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted EPS	10	10	12	8

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 27, 2015	May. 07, 2015	May. 06, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant	1,722,912
Shares of common stock reserved for issuance	3,370,188
Total compensation cost not yet recognized - period for recognition	1 year 11 months
Compensation not yet recognized	$ 45.1
Stock Options [Member]
Options Outstanding and Exercisable:
Options outstanding, number	999,468
Options exercisable, number	302,460
Options outstanding, weighted average exercise price	$ 69.15
Options exercisable, weighted average exercise price	$ 52.62
Options outstanding, aggregate intrinsic value	$ 9.7
Options exercisable, aggregate intrinsic value	$ 7
Options outstanding, weighted average remaining contractual term (in years)	5 years 1 month
Options exercisable, weighted average remaining contractual term (in years)	3 years 6 months
Restricted Stock Units [Member]
Restricted Stock Units Nonvested and Expected to Vest
Restricted stock units nonvested, number	647,808
Restricted stock units expected to vest, number	575,941
Restricted stock units nonvested, weighted average grant date per share fair value	$ 74.36
Restricted stock units expected to vest, weighted average grant date per share fair value	$ 73.64
Restricted stock units nonvested, aggregate intrinsic value	$ 46.8
Restricted stock units expected to vest, aggregate intrinsic value	$ 41.6
Restricted stock units nonvested, weighted average remaining term to vest (in years)	1 year 5 months
Restricted stock units expected to vest, weighted average remaining term to vest (in years)	1 year 4 months
Employee Share Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		4,450,000	4,200,000
Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		11,500,000	11,250,000

Stock-Based Compensation - All

Stock-Based Compensation - Allocation in Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 6,121	$ 6,494	$ 16,615	$ 17,456
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	925	912	2,514	2,495
Research and Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	742	762	2,031	2,092
Selling, General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 4,454	$ 4,820	$ 12,070	$ 12,869

Credit Facilities and Restric42

Credit Facilities and Restricted Cash - Credit Facilities (Details) - 9 months ended Sep. 27, 2015	EUR (€)	USD ($)
Line of Credit Facility [Line Items]
Guarantees and letters of credit outstanding		$ 53,900,000
Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of credit facility, expiration date	Apr. 1, 2016
Line of credit facility, amount outstanding		0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity		100,000,000
Line of credit facility, additional borrowing capacity		50,000,000
Line of credit facility, maximum borrowing capacity		150,000,000
Credit Agreement Subfacility [Member]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity		50,000,000
HSBC Credit Facility [Domain]
Line of Credit Facility [Line Items]
Line of credit facility, current borrowing capacity | €	€ 25,000,000
Bank Acceptances Executed and Outstanding		$ 4,500,000

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials and assembled parts	$ 59,728	$ 61,644
Service inventories, estimated current requirements	11,655	12,398
Work-in-process	83,061	76,402
Finished goods	37,204	25,996
Total current inventories	191,648	176,440
Non-current inventories	$ 47,401	$ 50,731

Goodwill and Other Intangible44

Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 27, 2015	Sep. 27, 2015	Sep. 28, 2014
Goodwill [Roll Forward]
Goodwill, beginning of period		$ 170,773	$ 136,152
Goodwill additions		4,100	46,880
Goodwill, Impairment Loss	$ (18,200)	(18,156)	0
Goodwill, Translation and Purchase Accounting Adjustments		(11,078)	(5,212)
Goodwill, end of period	$ 145,639	$ 145,639	$ 177,820

Goodwill and Other Intangible45

Goodwill and Other Intangible Assets Acquisition information (Details) - USD ($) $ in Thousands	Jan. 09, 2015	Sep. 27, 2015	Dec. 31, 2014	Sep. 28, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill		$ 145,639	$ 170,773	$ 177,820	$ 136,152
Eisenberg [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 5,400
Business Acquisition, Transaction Costs	200
Net tangible assets assumed	100
Goodwill	4,100
Customer relationships [Member] | Eisenberg [Member]
Business Acquisition [Line Items]
Net intangible assets acquired, fair value	$ 1,400
Net intangible assets acquired, weighted average amortization period		5 years

Goodwill and Other Intangible46

Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill and long-lived assets	$ 26,596	$ 0	$ 26,596	$ 0
Finite-lived intangible assets, accumulated amortization	(34,572)		(34,572)		$ (28,930)
Total intangible assets included in other long-term assets	37,815		37,815		54,111
Goodwill, Impairment Loss	18,200		18,156	$ 0
Patents, trademarks and other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	26,687		26,687		25,333
Finite-lived intangible assets, accumulated amortization	(14,803)		(14,803)		(12,805)
Total intangible assets included in other long-term assets	11,884		11,884		12,528
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	21,358		21,358		21,739
Finite-lived intangible assets, accumulated amortization	(7,445)		(7,445)		(5,863)
Total intangible assets included in other long-term assets	13,913		13,913		15,876
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	21,898		21,898		33,525
Finite-lived intangible assets, accumulated amortization	(9,880)		(9,880)		(7,818)
Total intangible assets included in other long-term assets	12,018		$ 12,018		$ 25,707
Lithicon AS [Member] | Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived	$ 8,400

Goodwill and Other Intangible47

Goodwill and Other Intangible Assets - Amortization of Intangibles (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Amortization Expense	$ 7,741	$ 8,638
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Remainder of 2015	2,117
Expected amortization, 2016	8,570
Expected amortization, 2017	7,247
Expected amortization, 2018	5,847
Expected amortization, 2019	5,178
Thereafter	8,856
Total intangible assets included in other long-term assets	37,815		$ 54,111
Patents, trademarks and other [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Amortization Expense	3,166	3,850
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Remainder of 2015	804
Expected amortization, 2016	3,317
Expected amortization, 2017	2,873
Expected amortization, 2018	2,081
Expected amortization, 2019	1,789
Thereafter	1,020
Total intangible assets included in other long-term assets	11,884		12,528
Customer relationships [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Amortization Expense	2,002	1,882
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Remainder of 2015	671
Expected amortization, 2016	2,687
Expected amortization, 2017	2,340
Expected amortization, 2018	2,274
Expected amortization, 2019	1,897
Thereafter	4,044
Total intangible assets included in other long-term assets	13,913		15,876
Developed technology [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-Lived Intangible Assets, Amortization Expense	2,573	$ 2,906
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Remainder of 2015	642
Expected amortization, 2016	2,566
Expected amortization, 2017	2,034
Expected amortization, 2018	1,492
Expected amortization, 2019	1,492
Thereafter	3,792
Total intangible assets included in other long-term assets	$ 12,018		$ 25,707
Maximum [Member] | Patents, trademarks and other [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	10 years
Maximum [Member] | Customer relationships [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	10 years
Maximum [Member] | Developed technology [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	10 years
Minimum [Member] | Patents, trademarks and other [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	2 years
Minimum [Member] | Customer relationships [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	5 years
Minimum [Member] | Developed technology [Member]
Finite-Lived Intangible Assets [Abstract]
Finite-lived intangible assets, useful life	5 years 6 months

Warranty Reserves (Details)

Warranty Reserves (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Product Warranty Reserve Activity [Roll Forward]
Balance, beginning of period	$ 13,005	$ 12,705
Reductions for warranty costs incurred	(11,224)	(10,132)
Warranties issued	11,691	9,826
Translation and changes in estimates	(313)	(271)
Balance, end of period	$ 13,159	$ 12,128

Income Taxes - Net Deferred Tax

Income Taxes - Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Deferred Income Taxes [Abstract]
Deferred tax assets – current	$ 8,652	$ 8,225
Deferred tax assets – non-current	8,129	6,605
Deferred tax liabilities – current	(420)	(218)
Deferred tax liabilities – non-current	(4,694)	(9,576)
Net deferred tax assets	11,667	5,036
Valuation allowance	$ 3,646	$ 4,350

Income Taxes - Unrecognized Ta

Income Taxes - Unrecognized Tax Benefits and Open Tax Years (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 27, 2015	Sep. 27, 2015
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ 6.1	$ 8.4
Unrecognized Tax Benefits, Period Increase (Decrease)	$ (3.8)	$ (4.3)
United States [Member]
Income Tax Contingency [Line Items]
Tax years open for examination, by major tax jurisdiction		2,012
The Netherlands [Member]
Income Tax Contingency [Line Items]
Tax years open for examination, by major tax jurisdiction		2,011
Czech Republic [Member]
Income Tax Contingency [Line Items]
Tax years open for examination, by major tax jurisdiction		2,012

Related-Party Activity (Details

Related-Party Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Related Party Transaction [Line Items]
Product sales to related parties	$ 5	$ 307	$ 204	$ 2,898
Service sales to related parties	82	339	767	869
Total sales to related parties	87	646	971	3,767
Purchases from related parties	161	436	1,519	1,804
Applied Materials [Member]
Related Party Transaction [Line Items]
Product sales to related parties	0	230	161	2,572
Service sales to related parties	0	256	526	611
Oregon Health and Science University [Member]
Related Party Transaction [Line Items]
Product sales to related parties	1	77	20	326
Service sales to related parties	82	83	241	258
Purchases from related parties	0	41	11	119
Electro Scientific Industries [Member]
Related Party Transaction [Line Items]
Product sales to related parties	4	0	23	0
Purchases from related parties	19	0	19	0
TMC BV [Member]
Related Party Transaction [Line Items]
Purchases from related parties	$ 142	$ 395	$ 1,489	$ 1,685

Related-Party Activity - Sched

Related-Party Activity - Schedule of Amounts Due From (To) Related Parties (Details) $ in Thousands	Sep. 27, 2015USD ($)
Related Party Transaction [Line Items]
Due from (to) related party	$ (176)
TMC BV [Member]
Related Party Transaction [Line Items]
Due from (to) related party	(230)
Oregon Health and Science University [Member]
Related Party Transaction [Line Items]
Due from (to) related party	73
Electro Scientific Industries [Member]
Related Party Transaction [Line Items]
Due from (to) related party	$ (19)

Commitments and Contingencies -

Commitments and Contingencies - Purchase Obligations (Details) - Inventories [Member] $ in Millions	9 Months Ended
	Sep. 27, 2015USD ($)
Unrecorded Unconditional Purchase Obligation [Line Items]
Non-cancelable purchase orders	$ 66
Purchase commitment, maximum expiration date	fourth quarter of 2019

Segment Information - Sales to

Segment Information - Sales to External Customers and Gross Profit (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Segment Reporting Information [Line Items]
Sales to external customers	$ 212,561	$ 227,756	$ 657,566	$ 690,976
Gross profit	104,277	108,581	321,653	324,756
Industry [Member]
Segment Reporting Information [Line Items]
Sales to external customers	105,280	107,058	336,760	340,722
Gross profit	55,184	55,101	176,541	175,321
Science [Member]
Segment Reporting Information [Line Items]
Sales to external customers	107,281	120,698	320,806	350,254
Gross profit	$ 49,093	$ 53,480	$ 145,112	$ 149,435
Top 10 Customers [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Customer	32.00%	31.80%	29.90%	29.20%

Segment Information - Goodwill

Segment Information - Goodwill and Total Assets (Details) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014	Sep. 28, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Goodwill	$ 145,639	$ 170,773	$ 177,820	$ 136,152
Total Assets	1,351,254	1,417,818
Industry [Member]
Segment Reporting Information [Line Items]
Goodwill	59,648	76,858
Total Assets	428,561	444,168
Science [Member]
Segment Reporting Information [Line Items]
Goodwill	85,991	93,915
Total Assets	438,145	470,899
Corporate Eliminations [Member]
Segment Reporting Information [Line Items]
Total Assets	$ 484,548	$ 502,751

Restructuring, Reorganization56

Restructuring, Reorganization, Relocation and Severance - Second Quarter (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ (423)	$ 7,699	$ (565)	$ 11,259
Second Quarter 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	(423)	9,760	(565)	15,709
Second Quarter 2014 Restructuring Plan [Member] | Inventory Write-offs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	0	230	0	985
Second Quarter 2014 Restructuring Plan [Member] | Acquisition Related Earn Out [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	0	0	0	2,500
Second Quarter 2014 Restructuring Plan [Member] | Impairment and Other Asset Write-off [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	0	1,831	0	2,297
Second Quarter 2014 Restructuring Plan [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ (423)	$ 7,699	$ (565)	$ 9,927

Restructuring, Reorganization57

Restructuring, Reorganization, Relocation and Severance Restructuring, Reorganization, Relocation and Severance - Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ (423)	$ 7,699	$ (565)	$ 11,259
Second Quarter 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	(423)	9,760	(565)	15,709
Second Quarter 2014 Restructuring Plan [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	0	230	0	985
Second Quarter 2014 Restructuring Plan [Member] | General and Administrative Expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	0	1,831	0	4,797
Second Quarter 2014 Restructuring Plan [Member] | Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ (423)	$ 7,699	$ (565)	$ 9,927

Restructuring, Reorganization58

Restructuring, Reorganization, Relocation and Severance (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Mar. 30, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ (423)	$ 7,699		$ (565)	$ 11,259
Restructuring Reserve [Roll Forward]
Beginning accrued liability			$ 50	9,161	50
Restructuring, reorganization, relocation and severance	(423)	7,699		(565)	11,259
Expenditures				(7,113)	(4,847)
Write-offs and adjustments				(625)
Ending accrued liability	858	6,462		858	6,462
Second Quarter 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance				(565)	9,928
Restructuring Reserve [Roll Forward]
Beginning accrued liability			0	9,161	0
Restructuring, reorganization, relocation and severance				(565)	9,928
Expenditures				(7,113)	(3,466)
Write-offs and adjustments				(625)
Ending accrued liability	$ 858	6,462		$ 858	6,462
First Quarter 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance					1,331
Restructuring Reserve [Roll Forward]
Beginning accrued liability			0		0
Restructuring, reorganization, relocation and severance					1,331
Expenditures					(1,331)
Ending accrued liability		0			0
Group Structure Reorganization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance					0
Restructuring Reserve [Roll Forward]
Beginning accrued liability			50		50
Restructuring, reorganization, relocation and severance					0
Expenditures					(50)
Ending accrued liability		$ 0			$ 0
First Quarter 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance			1,300
Restructuring Reserve [Roll Forward]
Restructuring, reorganization, relocation and severance			$ 1,300

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities - Securities (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities - mutual funds	$ 8,064	$ 7,351
Derivative contracts, net	1,264	(2,739)
Assets, fair value	71,295	144,814
U.S. Government-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		17,608
Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	34,054	51,951
Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		13,500
Certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	18,477	19,122
Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	721	27,119
Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	8,715	10,902
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities - mutual funds	8,064	7,351
Derivative contracts, net	0	0
Assets, fair value	8,064	24,959
Fair Value, Inputs, Level 1 [Member] | U.S. Government-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		17,608
Fair Value, Inputs, Level 1 [Member] | Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 1 [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		0
Fair Value, Inputs, Level 1 [Member] | Certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 1 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 1 [Member] | Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities - mutual funds	0	0
Derivative contracts, net	1,264	(2,739)
Assets, fair value	63,231	119,855
Fair Value, Inputs, Level 2 [Member] | U.S. Government-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		0
Fair Value, Inputs, Level 2 [Member] | Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	34,054	51,951
Fair Value, Inputs, Level 2 [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		13,500
Fair Value, Inputs, Level 2 [Member] | Certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	18,477	19,122
Fair Value, Inputs, Level 2 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	721	27,119
Fair Value, Inputs, Level 2 [Member] | Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	8,715	10,902
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities - mutual funds	0	0
Derivative contracts, net	0	0
Assets, fair value	0	0
Fair Value, Inputs, Level 3 [Member] | U.S. Government-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		0
Fair Value, Inputs, Level 3 [Member] | Agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 3 [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities		0
Fair Value, Inputs, Level 3 [Member] | Certificates of deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 3 [Member] | Municipal Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	0	0
Fair Value, Inputs, Level 3 [Member] | Corporate Bond Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale marketable securities	$ 0	$ 0

Derivative Instruments (Details

Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Derivative [Line Items]
Total outstanding derivative contracts	$ 300,945	$ 375,499
Cash Flow Hedging [Member]
Derivative [Line Items]
Total outstanding derivative contracts	148,000	222,000
Balance Sheet Hedges [Member]
Derivative [Line Items]
Total outstanding derivative contracts	$ 152,945	$ 153,499

Derivative Instruments - Foreig

Derivative Instruments - Foreign Currency Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gain (Loss) Attributable To Foreign Exchange Rate Fluctuations, Inclusive Of The Impact Of Derivatives	$ (1,309)	$ (644)	$ (1,915)	$ (1,597)

Derivative Instruments - Balan

Derivative Instruments - Balance Sheet Location (Details) - Foreign Exchange Contract [Member] - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	$ 3,469	$ 2,456
Gross amounts offset in the balance sheet	(666)	(670)
Net amounts presented in other current assets	2,803	1,786
Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	1,768	8,012
Gross amounts offset in the balance sheet	(229)	(3,487)
Net amounts presented in other current liabilities	1,539	4,525
Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	2,681	0
Gross amounts offset in the balance sheet	(654)	0
Net amounts presented in other current assets	2,027	0
Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	0	3,283
Gross amounts offset in the balance sheet	0	(865)
Net amounts presented in other current liabilities	0	2,418
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Offsetting Derivative Assets [Abstract]
Gross amounts of recognized assets	788	2,456
Gross amounts offset in the balance sheet	(12)	(670)
Net amounts presented in other current assets	776	1,786
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Offsetting Derivative Liabilities [Abstract]
Gross amounts of recognized liabilities	1,768	4,729
Gross amounts offset in the balance sheet	(229)	(2,622)
Net amounts presented in other current liabilities	$ 1,539	$ 2,107

Derivative Instruments - Effec

Derivative Instruments - Effect on Income Statement (Details) - Foreign Exchange Contract [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Other Comprehensive Income (Loss) [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in AOCI (effective portion)	$ (3,253)	$ (6,757)	$ (16,977)	$ (11,016)
Sales Revenue, Net [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Reclassified from AOCI into income (effective portion)	0	1	(112)	47
Cost of Sales [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Reclassified from AOCI into income (effective portion)	(2,475)	(2,486)	(8,122)	(4,152)
Other Income Expense Net [Member] | Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in other, net	(2,500)	(2,018)	(8,185)	(5,763)
Other Income Expense Net [Member] | Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Recognized in other, net (ineffective portion and amount excluded from effectiveness testing)	$ (19)	$ (49)	$ (127)	$ (58)

Changes in Accumulated Other 64

Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance			$ 1,041,325
Ending balance	$ 985,264		985,264
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(61,565)	$ 47,109	(22,541)	$ 48,865
Other comprehensive income before reclassifications	(8,818)	(37,778)	(47,842)	(39,534)
Amounts reclassified from AOCI to:	0	0	0	0
Net current period other comprehensive income	(8,818)	(37,778)	(47,842)	(39,534)
Ending balance	(70,383)	9,331	(70,383)	9,331
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	10	29	(38)	(11)
Other comprehensive income before reclassifications	(8)	(52)	40	(12)
Amounts reclassified from AOCI to:	0	0	0	0
Net current period other comprehensive income	(8)	(52)	40	(12)
Ending balance	2	(23)	2	(23)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(727)	(519)	(798)	(552)
Other comprehensive income before reclassifications	8	45	79	78
Amounts reclassified from AOCI to:	0	0	0	0
Net current period other comprehensive income	8	45	79	78
Ending balance	(719)	(474)	(719)	(474)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(3,375)	(1,320)	(4,134)	(1,174)
Other comprehensive income before reclassifications	(1,151)	(5,475)	(6,259)	(7,250)
Amounts reclassified from AOCI to:	2,494	2,534	8,361	4,163
Net current period other comprehensive income	1,343	(2,941)	2,102	(3,087)
Ending balance	(2,032)	(4,261)	(2,032)	(4,261)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Beginning Balance	(65,657)	45,299	(27,511)	47,128
Other comprehensive income before reclassifications	(9,969)	(43,260)	(53,982)	(46,718)
Amounts reclassified from AOCI to:	2,494	2,534	8,361	4,163
Net current period other comprehensive income	(7,475)	(40,726)	(45,621)	(42,555)
Ending balance	(73,132)	4,573	(73,132)	4,573
Sales [Member] | Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:		0	0	0
Sales [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:		0	0	0
Sales [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:		0	0	0
Sales [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:		(1)	112	(47)
Sales [Member] | AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:		(1)	112	(47)
Cost of Goods, Total [Member] | Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Cost of Goods, Total [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Cost of Goods, Total [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Cost of Goods, Total [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	2,475	2,486	8,122	4,152
Cost of Goods, Total [Member] | AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	2,475	2,486	8,122	4,152
Other Income Expense Net [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:		49		58
Other Income Expense Net [Member] | Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Other Income Expense Net [Member] | Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Other Income Expense Net [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	0	0	0	0
Other Income Expense Net [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	19	$ 49	127	$ 58
Other Income Expense Net [Member] | AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]
Amounts reclassified from AOCI to:	$ 19		$ 127

Subsequent Events (Details)

Subsequent Events (Details) $ in Millions	Oct. 20, 2015USD ($)
DCG Systems | Subsequent Event [Member]
Subsequent Event [Line Items]
Business Combination, Consideration Transferred	$ 160