Fei (FEIC) 10-Q 1 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 29, 2013	Oct. 28, 2013
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'FEI CO	'
Entity Central Index Key	'0000914329	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	29-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	41,756,393

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$335,502	$266,302
Short-term investments in marketable securities	98,009	79,532
Short-term restricted cash	15,328	14,522
Receivables, net of allowances for doubtful accounts of $3,015 and $2,718	211,980	211,160
Inventories	195,658	192,540
Deferred tax assets	13,120	12,245
Other current assets	28,534	29,332
Total current assets	898,131	805,633
Non-current investments in marketable securities	24,414	29,179
Long-term restricted cash	35,668	27,425
Property, plant and equipment, net of accumulated depreciation of $127,855 and $121,560	151,580	109,872
Intangible assets, net of accumulated amortization of $17,218 and $10,984	48,279	51,499
Goodwill	135,184	131,320
Deferred tax assets	1,084	5,092
Non-current inventories	64,270	65,116
Other assets, net	9,778	9,087
Total Assets	1,368,388	1,234,223
Current liabilities:	'	'
Accounts payable	75,944	54,847
Accrued payroll liabilities	36,486	39,100
Accrued warranty reserves	12,350	12,049
Accrued agent commissions	7,976	8,124
Short-term deferred revenue	86,406	74,736
Income taxes payable	3,545	1,343
Accrued restructuring, reorganization, relocation and severance	366	2,692
Convertible debt	0	89,010
Other current liabilities	42,088	36,902
Total current liabilities	265,161	318,803
Long-term deferred revenue	30,220	26,668
Deferred tax liabilities	9,288	17,588
Other liabilities	34,323	31,261
Commitments and contingencies	'	'
Shareholders' Equity:	'	'
Preferred stock - 500 shares authorized; none issued and outstanding	0	0
Common stock - 70,000 shares authorized; 41,757 and 38,478 shares issued and outstanding, no par value	626,541	516,907
Retained earnings	356,703	284,440
Accumulated other comprehensive income	46,152	38,556
Total Shareholders' Equity	1,029,396	839,903
Total Liabilities and Shareholders' Equity	$1,368,388	$1,234,223

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parentheticals) (USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, except Per Share data, unless otherwise specified
Assets:	'	'
Allowance for doubtful accounts	$3,015	$2,718
Accumulated depreciation	127,855	121,560
Accumulated amortization	$17,218	$10,984
Shareholders' Equity:	'	'
Preferred stock, shares authorized	500	500
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, shares authorized	70,000	70,000
Common stock, shares issued	41,757	38,478
Common stock, shares outstanding	41,757	38,478
Common stock, no par value	$0	$0

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Net sales:	'	'	'	'
Products	$162,452	$172,359	$502,284	$514,347
Service	56,044	49,426	159,879	146,445
Total net sales	218,496	221,785	662,163	660,792
Cost of sales:	'	'	'	'
Products	79,894	86,333	247,757	259,664
Service	33,857	31,296	100,213	94,432
Total cost of sales	113,751	117,629	347,970	354,096
Gross profit	104,745	104,156	314,193	306,696
Operating expenses:	'	'	'	'
Research and development	25,397	23,908	75,619	69,936
Selling, general and administrative	45,346	41,931	131,509	125,299
Restructuring, reorganization, relocation and severance	0	0	1,090	0
Total operating expenses	70,743	65,839	208,218	195,235
Operating income	34,002	38,317	105,975	111,461
Other expense:	'	'	'	'
Interest income	175	299	428	1,254
Interest expense	-231	-990	-1,716	-3,077
Other, net	-605	-1,021	-2,330	-3,207
Total other expense, net	-661	-1,712	-3,618	-5,030
Income before income taxes	33,341	36,605	102,357	106,431
Income tax expense	4,735	7,447	16,957	21,313
Net income	$28,606	$29,158	$85,400	$85,118
Basic net income per share	$0.69	$0.76	$2.14	$2.24
Diluted net income per share	$0.67	$0.71	$2.04	$2.08
Cash dividends declared per share	$0.12	$0.08	$0.32	$0.16
Shares used in per share calculations:	'	'	'	'
Basic (in shares)	41,750	38,082	39,928	37,987
Diluted (in shares)	42,455	41,771	42,300	41,644

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Net income	$28,606	$29,158	$85,400	$85,118
Other comprehensive income, net of taxes:	'	'	'	'
Change in cumulative translation adjustment	17,126	11,642	7,773	2,025
Change in unrealized gain (loss) on available-for-sale securities	24	8	21	-13
Change in minimum pension liability	-70	0	-141	0
Changes due to cash flow hedging instruments:	'	'	'	'
Net gain (loss) on hedge instruments	1,292	2,223	-563	1,240
Reclassification to net income of previously deferred (gains) losses related to hedge derivatives instruments	-120	708	506	2,087
Comprehensive income	$46,858	$43,739	$92,996	$90,457

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012
Cash flows from operating activities:	'	'
Net income	$85,400	$85,118
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation	17,442	16,317
Amortization	7,868	3,472
Stock-based compensation	13,316	10,083
Other	17	4
Income taxes payable, net	11,448	16
Deferred income taxes	-4,442	-566
Decrease (increase), net of acquisitions, in:	'	'
Receivables	-4,073	-31,758
Inventories	-8,544	-23,044
Other assets	990	-7,894
Increase (decrease), net of acquisitions, in:	'	'
Accounts payable	14,865	3,787
Accrued payroll liabilities	-5,017	-18,331
Accrued warranty reserves	327	451
Deferred revenue	8,632	-9,061
Accrued restructuring, reorganization, relocation and severance	-2,309	-2,212
Other liabilities	4,324	-1,064
Net cash provided by operating activities	140,244	25,318
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	-8,176	38,111
Acquisition of property, plant and equipment	-47,152	-14,746
Payments for acquisitions, net of cash acquired	-2,694	-93,368
Purchase of investments in marketable securities	-132,965	-109,689
Redemption of investments in marketable securities	119,349	109,478
Other	-2,366	-10,524
Net cash used in investing activities	-74,004	-80,738
Cash flows from financing activities:	'	'
Conversion of 2.875% convertible notes	-73	0
Dividends paid on common stock	-11,173	-3,046
Withholding taxes paid on issuance of vested restricted stock units	-954	-1,545
Proceeds from exercise of stock options and employee stock purchases	9,081	7,618
Excess tax benefit for share based payment arrangements	1,169	904
Repurchases of common stock	0	-890
Other financing activities	0	-1,869
Net cash (used in) provided by financing activities	-1,950	1,172
Effect of exchange rate changes	4,910	-4,221
Increase (decrease) in cash and cash equivalents	69,200	-58,469
Cash and cash equivalents:	'	'
Beginning of period	266,302	320,361
End of period	335,502	261,892
Supplemental Cash Flow Information:	'	'
Cash paid for income taxes, net	7,505	20,437
Cash paid for interest	1,627	2,051
Increase in fixed assets related to transfers with inventories	8,285	13,482
Dividends declared but not paid	5,011	3,049
Conversion of 2.875% convertible notes	88,937	0
Accrued purchases of plant and equipment	$6,434	$1,580

Organization_and_Basis_of_Pres

Organization and Basis of Presentation	9 Months Ended
	Sep. 29, 2013
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 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, or TEMs; scanning electron microscopes, or SEMs; DualBeamTM systems which combine a SEM and a focused ion beam system, or FIB, on a single platform; stand-alone FIBs; and high-performance optical microscopes. 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 market segments. Individual models of our products are increasingly designed to provide specific solutions and applications in each of our market segments.
	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”).
	We have research and development and manufacturing operations in Hillsboro, Oregon; Eindhoven, The Netherlands; Brno, Czech Republic; Munich, Germany; and Delmont, Pennsylvania; and software development in Bordeaux, France; and Brisbane, Australia. 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 U.S. 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 29, 2013 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, 2012, which was filed with the Securities and Exchange Commission (“SEC”) on February 20, 2013.
	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;
	•	the allowance for doubtful accounts;
	•	valuations of excess and obsolete inventory;
	•	the lives and recoverability of equipment and other long-lived assets such as goodwill;
	•	the valuations of intangible assets;
	•	restructuring, reorganization, relocation and severance costs;
	•	tax valuation allowances and unrecognized tax benefits;
	•	warranty liabilities;
	•	stock-based compensation; and
	•	accounting for derivatives.
	It is reasonably possible that management's estimates may change in the future.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 29, 2013
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 29, 2013								September 30, 2012
		Net			Shares		Per Share			Net		Shares	Per Share
		Income					Amount			Income			Amount
	Basic EPS	$	28,606		41,750		$	0.69		$	29,158	38,082	$	0.76
	Dilutive effect of 2.875% convertible debt	—			—		—			455		3,033	(0.04		)
	Dilutive effect of stock options, restricted stock units, and shares issuable to Philips	—			705		(0.02		)	—		656	(0.01		)
	Diluted EPS	$	28,606		42,455		$	0.67		$	29,613	41,771	$	0.71
		Thirty-Nine Weeks Ended								Thirty-Nine Weeks Ended
		September 29, 2013								September 30, 2012
		Net			Shares		Per Share			Net		Shares	Per Share
		Income					Amount			Income			Amount
	Basic EPS	$	85,400		39,928		$	2.14		$	85,118	37,987	$	2.24
	Dilutive effect of 2.875% convertible debt	780			1,727		(0.07		)	1,365		3,033	(0.13		)
	Dilutive effect of stock options, restricted stock units, and shares issuable to Philips	—			645		(0.03		)	—		624	(0.03		)
	Diluted EPS	$	86,180		42,300		$	2.04		$	86,483	41,644	$	2.08
	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 29,		September 30,		September 29,			September 30,
		2013		2012		2013			2012
	Stock options	31		32		220			271
	Restricted stock units	1		17		1			6

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 29, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	STOCK-BASED COMPENSATION
	Employee Share Purchase Plan
	At our 2013 Annual Meeting of Shareholders, which was held on May 9, 2013, 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 3,700,000 to 3,950,000.
	1995 Stock Incentive Plan and 1995 Supplemental Stock Incentive Plan
	Also at our 2013 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 10,750,000 to 11,000,000. Our 1995 Supplemental Stock Incentive Plan (the “1995 Supplemental Plan”) allows for the issuance of a maximum of 500,000 shares of our common stock.
	The following table sets forth certain information regarding the 1995 Plan and the 1995 Supplemental Plan:
		September 29,
		2013
	Shares available for grant	2,323,306
	Shares of common stock reserved for issuance	3,895,765
	The following table sets forth certain information regarding all options outstanding and exercisable:
		September 29, 2013
		Options		Options
		Outstanding		Exercisable
	Number	773,497		199,785
	Weighted average exercise price	$	39.7	$	28.71
	Aggregate intrinsic value	$ 37.9 million		$ 12.0 million
	Weighted average remaining contractual term	4.8 years		3.6 years
	The following table sets forth certain information regarding all RSUs nonvested and expected to vest:
		September 29, 2013
		RSUs Nonvested		RSUs Expected
				to Vest
	Number	798,964		721,268
	Weighted average grant date per share fair value	$	43.4	$	42.88
	Aggregate intrinsic value	$ 70.9 million		$ 64.0 million
	Weighted average remaining term to vest	1.2 years		1.2 years
	As of September 29, 2013, unrecognized stock-based compensation related to outstanding, but unvested stock options and RSUs was $32.0 million, which will be recognized over the weighted average remaining vesting period of 1.8 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 29,		September 30,		September 29,		September 30,
		2013		2012		2013		2012
	Cost of sales	$	571	$	463	$	1,782	$	1,327
	Research and development	511		438		1,587		1,395
	Selling, general and administrative	3,522		2,506		9,947		7,361
	Total stock-based compensation	$	4,604	$	3,407	$	13,316	$	10,083

Credit_Facilities_and_Restrict

Credit Facilities and Restricted Cash	9 Months Ended
	Sep. 29, 2013
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 “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 29, 2013, 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.
	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. 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.
	The following table sets forth information related to guarantees and letters of credit (in thousands):
		September 29,
		2013
	Guarantees and letters of credit outstanding	$	50,996
	Amount secured by restricted cash deposits:
	Current	$	15,328
	Long-term	35,668
	Total secured by restricted cash	$	50,996

Inventories

Inventories	9 Months Ended
	Sep. 29, 2013
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 29,		December 31,
		2013		2012
	Raw materials and assembled parts	$	67,260	$	67,985
	Service inventories, estimated current requirements	15,774		15,898
	Work-in-process	85,460		81,104
	Finished goods	27,164		27,553
	Total current inventories	$	195,658	$	192,540
	Non-current inventories	$	64,270	$	65,116

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 29, 2013
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 29,			September 30,
		2013			2012
	Balance, beginning of period	$	131,320		$	58,053
	Goodwill additions	3,545			69,253
	Goodwill adjustments	319			2,361
	Balance, end of period	$	135,184		$	129,667
	Additions to goodwill represent goodwill from acquisitions made during the period. Adjustments to goodwill include translation adjustments resulting from a portion of our goodwill being recorded on the books of our foreign subsidiaries as well as an adjustment related to the finalization of the purchase price allocation of the acquisition of ASPEX Corporation in 2012.
	Acquisition of nanoTechnology Systems Pty. Ltd.
	On August 9, 2013, we acquired 100% of the outstanding shares of nanoTechnology Systems Pty. Ltd. (NTS) of Melbourne, Australia, which had operated as our exclusive distributor in Australia and New Zealand for approximately 10 years. The total purchase price of the acquisition was approximately $3.6 million. We paid $0.2 million in transaction costs related to this acquisition which were expensed as incurred in the selling, general and administrative line on 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 at August 9, 2013. The fair value of net tangible liabilities assumed was $1.5 million and the fair value of identifiable intangible assets acquired was $0.8 million. The acquired intangible assets consisted of customer relationships and have a weighted-average amortization period of 5 years. The transaction resulted in goodwill of $3.5 million which represents the excess of the purchase price over the fair value of the net identifiable assets acquired. The goodwill is recorded in our Science segment.
	The goodwill arising from the acquisition of NTS is primarily related to expected future cash flows as our direct presence in Australia and New Zealand will allow us to better manage the sales channel and key customer relationships. None of the goodwill is deductible for tax purposes. For the thirteen and thirty-nine week periods ended September 29, 2013, NTS contributed $0.7 million of revenue, and net income of $0.2 million to our consolidated financial results.
	No pro forma disclosure has been provided for this acquisition as it is insignificant individually and in the aggregate.
	Other Intangible Assets
	Patents, trademarks and other are amortized under the straight-line method over their estimated useful lives of 2 to 15 years. Customer relationships are amortized under the straight-line method over their estimated useful lives of 5 to 10 years. Developed technology is amortized under the straight-line method over the estimated useful life of the related technology, which ranges from 5.5 to 10 years. Note issuance costs were amortized over the life of the related debt, which was 7 years.
	The gross amount of our other intangible assets and the related accumulated amortization were as follows (in thousands):
		September 29,			December 31,
		2013			2012
	Patents, trademarks and other	$	23,796		$	22,047
	Accumulated amortization	(8,386		)	(5,743		)
	Net patents, trademarks and other	15,410			16,304
	Customer relationships	21,319			20,305
	Accumulated amortization	(2,899		)	(1,171		)
	Net customer relationships	18,420			19,134
	Developed technology	17,938			17,686
	Accumulated amortization	(3,489		)	(1,771		)
	Net developed technology	14,449			15,915
	Note issuance costs	2,445			2,445
	Accumulated amortization	(2,445		)	(2,299		)
	Net note issuance costs	—			146
	Total intangible assets included in other long-term assets	$	48,279		$	51,499
	Amortization expense was as follows (in thousands):
		Thirty-Nine Weeks Ended
		September 29,			September 30,
		2013			2012
	Patents, trademarks and other	$	2,527		$	1,222
	Customer relationships	1,728			599
	Developed technology	1,718			1,128
	Note issuance costs	146			262
	Total amortization expense	$	6,119		$	3,211
	Expected amortization, without consideration for foreign currency effects, is as follows over the next five years and thereafter (in thousands):
		Patents,			Customer Relationships			Developed Technology		Total
		Trademarks
		and Other
	Remainder of 2013	$	1,058		$	597		$	566	$	2,221
	2014	3,143			2,389			2,265		7,797
	2015	2,925			2,389			2,265		7,579
	2016	2,663			2,389			2,265		7,317
	2017	2,140			2,042			1,990		6,172
	Thereafter	3,481			8,614			5,098		17,193
	Total future amortization expense	$	15,410		$	18,420		$	14,449	$	48,279

Warranty_Reserves

Warranty Reserves	9 Months Ended
	Sep. 29, 2013
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 29,			September 30,
		2013			2012
	Balance, beginning of period	$	12,049		$	11,683
	Reductions for warranty costs incurred	(9,478		)	(8,567		)
	Warranties issued	9,776			9,191
	Translation and changes in estimates	3			(9		)
	Balance, end of period	$	12,350		$	12,298

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 29, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	INCOME TAXES
	Our tax provision for the thirteen and thirty-nine week periods ended September 29, 2013 consisted primarily of taxes accrued in the U.S. and foreign jurisdictions, offset by a reduction of unrecognized tax benefits due primarily to settlements with taxing authorities. 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 (liabilities) were classified on the balance sheet as follows (in thousands):
		September 29,			December 31,
		2013			2012
	Deferred tax assets – current	$	13,120		$	12,245
	Deferred tax assets – non-current	1,084			5,092
	Deferred tax liabilities – current	(35		)	(93		)
	Deferred tax liabilities – non-current	(9,288		)	(17,588		)
	Net deferred tax assets (liabilities)	$	4,881		$	(344	)
	Valuation allowance	$	2,764		$	2,081
	Unrecognized Tax Benefits
	During the thirteen and thirty-nine week periods ended September 29, 2013, unrecognized tax benefits, interest and penalties decreased by $1.7 million, primarily due to settlements with taxing authorities which were partially offset by additional uncertainty surrounding permanent establishment and transfer pricing in various foreign jurisdictions. 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 29, 2013:
	Jurisdiction		Open Tax Years
	U.S.		2008 and forward
	The Netherlands		2011 and forward
	Czech Republic		2010 and forward
	The IRS concluded their examination of our 2007-2009 U.S. tax returns during the thirteen-week period ended September 29, 2013.

RelatedParty_Activity

Related-Party Activity	9 Months Ended
	Sep. 29, 2013
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 29, 2013 were as follows:
	•	one of the members of our Board of Directors serves on the Board of Directors of Applied Materials, Inc. and Lattice Semiconductor Corporation;
	•	our Chief Financial Officer is on the Board of Directors of Cascade Microtech, 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 29,			September 30,		September 29,		September 30,
		2013			2012		2013		2012
	Product sales:
	Applied Materials, Inc.	$	1,039		$	798	$	4,630	$	931
	Lattice Semiconductor Corporation	—			—		4		—
	Cascade Microtech, Inc.	—			—		—		4
	Oregon Health and Science University	130			—		385		—
	Total product sales to related parties	1,169			798		5,019		935
	Service sales:
	Applied Materials, Inc.	220			120		550		382
	Lattice Semiconductor Corporation	3			—		9		—
	Cascade Microtech, Inc.	8			8		24		24
	Oregon Health and Science University	14			—		30		—
	Total service sales to related parties	245			128		613		406
	Total sales to related parties	$	1,414		$	926	$	5,632	$	1,341
	Purchases from Related Parties
	TMC BV	$	27		$	32	$	75	$	97
	Oregon Health and Science University	39			—		214		—
	Total purchases from related parties	$	66		$	32	$	289	$	97
	Amounts due from (to) related parties were as follows (in thousands):
		September 29,
		2013
	Applied Materials, Inc.	$	113
	Cascade Microtech, Inc.	8
	TMC BV	(83		)
	Due from related parties, net	$	38

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 29, 2013
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 $95.3 million at September 29, 2013. These commitments expire at various times through the second quarter of 2016.

Segment_Information

Segment Information	9 Months Ended
	Sep. 29, 2013
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.
	Beginning with the first quarter of 2013, we reorganized our corporate structure. We currently report our segments based on a group structure organization. Our segments are Industry and Science.
	The following tables summarize various financial amounts for each of our business segments (in thousands):
		Thirteen Weeks Ended				Thirty-Nine Weeks Ended
		September 29,		September 30,		September 29,		September 30,
		2013		2012		2013		2012
	Sales to External Customers:
	Industry	$	103,627	$	112,804	$	306,393	$	341,843
	Science	114,869		108,981		355,770		318,949
	Total	$	218,496	$	221,785	$	662,163	$	660,792
	Gross Profit:
	Industry	$	56,216	$	58,795	$	160,517	$	175,303
	Science	48,529		45,361		153,676		131,393
	Total	$	104,745	$	104,156	$	314,193	$	306,696
		September 29,		December 31,
		2013		2012
	Goodwill:
	Industry	$	52,634	$	53,572
	Science	82,550		77,748
	Total	$	135,184	$	131,320
	Total Assets:
	Industry	$	316,158	$	293,115
	Science	378,614		401,795
	Corporate and Eliminations	673,616		539,313
	Total	$	1,368,388	$	1,234,223
	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, given allocation to the market segments would be arbitrary, have not been allocated to the market segments. See our 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.

Restructuring_Reorganization_R

Restructuring, Reorganization, Relocation and Severance	9 Months Ended
	Sep. 29, 2013
Restructuring and Related Activities [Abstract]	'
Restructuring, Reorganization, Relocation and Severance	'
	RESTRUCTURING, REORGANIZATION, RELOCATION AND SEVERANCE
	Group Structure Reorganization
	In January 2013, we announced our intention to reorganize the company into a group structure in order to enable us to efficiently execute our growth strategy. The reorganization was completed in the first quarter of 2013. The costs associated with the reorganization include primarily severance costs and resulted in the termination of certain positions throughout the company. In anticipation of this reorganization, we incurred $2.9 million of severance costs during the fourth quarter of 2012. We recorded no severance costs during the thirteen week period ended September 29, 2013. During the thirty-nine week period ended September 29, 2013 we recorded $1.1 million of severance costs. We do not expect to incur any additional charges related to the reorganization. All of the costs related to this plan are expected to result in cash expenditures and we currently expect the total cost of the reorganization to be approximately $4.0 million.
	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 29, 2013	Group Structure Reorganization			Total
	Beginning accrued liability	$	2,692		$	2,692
	Charged to expense, net	1,090			1,090
	Expenditures	(3,466		)	(3,466		)
	Write-offs and adjustments	50			50
	Ending accrued liability	$	366		$	366

Fair_Value_Measurements_of_Ass

Fair Value Measurements of Assets and Liabilities	9 Months Ended
	Sep. 29, 2013
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 29, 2013	Level 1		Level 2		Level 3		Total
	Available for sale marketable securities:
	U.S. treasury notes	$	22,560	$	—	$	—	$	22,560
	Agency bonds	—		27,025		—		27,025
	Commercial paper	—		24,992		—		24,992
	Certificates of deposit	—		5,849		—		5,849
	Municipal bonds	—		37,228		—		37,228
	Trading securities:
	Equity securities – mutual funds	4,768		—		—		4,768
	Derivative contracts, net	—		1,311		—		1,311
	Total	$	27,328	$	96,405	$	—	$	123,733
	December 31, 2012	Level 1		Level 2		Level 3		Total
	Available for sale marketable securities:
	U.S. treasury notes	$	60,786	$	—	$	—	$	60,786
	Agency bonds	—		31,157		—		31,157
	Commercial paper	—		5,000		—		5,000
	Certificates of deposit	—		5,494		—		5,494
	Municipal bonds	—		3,228		—		3,228
	Trading securities:
	Equity securities – mutual funds	3,046		—		—		3,046
	Derivative contracts, net	—		1,655		—		1,655
	Total	$	63,832	$	46,534	$	—	$	110,366
	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 29, 2013.
	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.

Convertible_Notes

Convertible Notes	9 Months Ended
	Sep. 29, 2013
Convertible Subordinated Debt [Abstract]	'
Convertible Notes	'
	CONVERTIBLE NOTES
	2.875% Convertible Subordinated Notes
	On May 19, 2006, we issued $115.0 million aggregate principal amount of 2.875% convertible subordinated notes. The cost of this transaction, including underwriting discounts and commissions and offering expenses, totaled $3.1 million. During 2009 and 2010, we redeemed a total of $26.0 million of these notes.
	On June 1, 2013, the remaining $89.0 million of these notes were due. Prior to maturity, holders of $88.9 million of these notes converted their notes into 3.0 million shares of FEI common stock. At maturity, holders of $0.1 million of these notes did not elect to convert into FEI common stock and those notes were settled with a cash payment.

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Sep. 29, 2013
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 29,				December 31,
		2013				2012
	Cash flow hedges	$	107,762			$	165,000
	Balance sheet hedges	136,304				225,924
	Total outstanding derivative contracts	$	244,066			$	390,924
	The outstanding contracts at September 29, 2013 have varying maturities through the fourth quarter of 2014. 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 29, 2013. 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 29,				September 30,				September 29,				September 30,
		2013				2012				2013				2012
	Foreign currency loss, inclusive of the impact of derivatives	$	(638	)		$	(1,019	)		$	(2,164	)		$	(4,064	)
	Cash Flow Hedges
	We use zero cost collar contracts and option contracts to hedge certain anticipated foreign currency exchange transactions. The foreign exchange hedging structure is set up, generally, on 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 rate. The zero cost collar contract 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 29, 2013	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	$	1,369		$	(546	)	$	823			$	—		$	—		$	—
	Foreign exchange contracts not designated as hedging instruments	1,828			(775		)	1,053				1,086			(521		)	565
	Total	$	3,197		$	(1,321	)	$	1,876			$	1,086		$	(521	)	$	565
		Offsetting of Derivative Assets										Offsetting of Derivative Liabilities
	December 31, 2012	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	$	3,019		$	(1,492	)	$	1,527			$	—		$	—		$	—
	Foreign exchange contracts not designated as hedging instruments	2,725			(1,589		)	1,136				4,289			(3,281		)	1,008
	Total	$	5,744		$	(3,081	)	$	2,663			$	4,289		$	(3,281	)	$	1,008
	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 29,				September 30,				September 29,				September 30,
		2013				2012				2013				2012
	Amount of gain/(loss):
	Recognized in AOCI (effective portion)	$	(637	)		$	1,892			$	(3,567	)		$	7,260
	Reclassified from AOCI into cost of sales (effective portion)	120				(705		)		(460		)		(2,097		)
	Recognized in other, net (ineffective portion and amount excluded from effectiveness testing)	—				(3		)		(46		)		10
	Foreign Exchange Contracts Not in Cash Flow Hedging Relationships
	Amount of gain/(loss):
	Recognized in other, net	$	(491	)		$	(2,241	)		$	3,582			$	(5,872	)
	The unrealized losses at September 29, 2013 are expected to be reclassified to net income during the next twenty-four months as a result of the underlying hedged transactions also being recorded in net income.

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income by Component	9 Months Ended
	Sep. 29, 2013
Changes in Accumulated Other Comprehensive Income [Abstract]	'
Comprehensive Income Note	'
	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME BY COMPONENT
	The following table illustrates 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 the Consolidated Statements of Operations by component (net of tax, in thousands):
		Thirteen Weeks Ended September 29, 2013
		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	$	29,537	$	1	$	(890	)	$	(748	)	$	27,900
	Other comprehensive income before reclassifications	17,126		24		(70		)	1,292			18,372
	Amounts reclassified from AOCI to:
	Cost of goods sold	—		—		—			(120		)	(120		)
	Total reclassifications out of AOCI	—		—		—			(120		)	(120		)
	Net current period other comprehensive income	17,126		24		(70		)	1,172			18,252
	Ending balance	$	46,663	$	25	$	(960	)	$	424		$	46,152
		Thirty-Nine Weeks Ended September 29, 2013
		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	$	38,890	$	4	$	(819	)	$	481		$	38,556
	Other comprehensive income before reclassifications	7,773		21		(141		)	(563		)	7,090
	Amounts reclassified from AOCI to:
	Cost of goods sold	—		—		—			460			460
	Other income (expense)	—		—		—			46			46
	Total reclassifications out of AOCI	—		—		—			506			506
	Net current period other comprehensive income	7,773		21		(141		)	(57		)	7,596
	Ending balance	$	46,663	$	25	$	(960	)	$	424		$	46,152

Factoring_of_Accounts_Receivab

Factoring of Accounts Receivable	9 Months Ended
	Sep. 29, 2013
Factoring of Accounts Receivable [Abstract]	'
Factoring of Accounts Receivable	'
	FACTORING OF ACCOUNTS RECEIVABLE
	We entered into agreements under which we sold a total of $3.2 million and $8.1 million of our accounts receivable at a discount to unrelated third party financiers without recourse during the thirteen and thirty-nine week periods ended September 29, 2013, respectively. The transfers qualified for sales treatment and, accordingly, discounts related to the sale of the receivables, which were immaterial, were recorded on our Consolidated Statements of Operations as other expense. We sold no accounts receivable under these agreements during 2012.

New_Accounting_Pronouncements

New Accounting Pronouncements	9 Months Ended
	Sep. 29, 2013
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
New Accounting Pronouncements	'
	NEW ACCOUNTING PRONOUNCEMENTS
	ASU 2011-05, ASU 2011-12 and ASU 2013-02
	In June 2011, the FASB issued ASU No. 2011-05, “Presentation of Comprehensive Income” which revised the manner in which entities can present comprehensive income in their financial statements. The new guidance requires entities to present the components of net income and other comprehensive income in either (1) a single continuous statement of comprehensive income or (2) two separate but consecutive financial statements, consisting of an income statement followed by a separate statement of other comprehensive income. Under either method of presentation, entities are also required to present adjustments for items reclassified from other comprehensive income to net income in both net income and other comprehensive income.
	In December 2011, the FASB issued ASU No. 2011-12, "Comprehensive Income (Topic 220): Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05" which deferred the requirement within ASU 2011-05 to present reclassification adjustments from other comprehensive income to net income on the face of the financial statements pending further deliberation by the FASB.
	In February 2013, the FASB issued ASU No. 2013-02, "Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income" which added new disclosure requirements for items reclassified out of accumulated other comprehensive income. ASU No. 2013-02 effectively replaced the requirements previously outlined in ASU 2011-05 and ASU 2011-12.
	ASU 2013-02 was adopted prospectively beginning in 2013. As ASU 2013-02 relates to disclosure requirements only, the adoption of this guidance did not have an impact on our financial position, results of operations or cash flows.
	ASU 2011-11 and ASU 2013-01
	In December 2011, the FASB issued ASU No. 2011-11, “Disclosures About Offsetting Assets and Liabilities” which creates new disclosure requirements about the nature of an entity's rights of offset associated with its financial instruments and derivative instruments. In January 2013, the FASB issued ASU No. 2013-01, "Clarifying the Scope of Disclosures About Offsetting Assets and Liabilities" which limits the scope of the offsetting disclosures required by ASU No. 2011-11.
	ASU No. 2011-11 and ASU 2013-01 were adopted retrospectively beginning in 2013. As the requirements of these ASUs relate only to disclosures, the adoption of this guidance did not have an impact on our financial position, results of operations or cash flows.
	ASU 2013-11
	In July 2013, the FASB issued ASU No. 2013-11, “Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists” which provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This guidance is effective for annual periods, and interim periods within those years, beginning after December 15, 2013. We currently present our unrecognized tax benefits in accordance with ASU 2013-11.

Organization_and_Basis_of_Pres1

Organization and Basis of Presentation (Policies)	9 Months Ended
	Sep. 29, 2013
Accounting Policies [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. 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 are amortized under the straight-line method over their estimated useful lives of 2 to 15 years. Customer relationships are amortized under the straight-line method over their estimated useful lives of 5 to 10 years. Developed technology is amortized under the straight-line method over the estimated useful life of the related technology, which ranges from 5.5 to 10 years. Note issuance costs were amortized over the life of the related debt, which was 7 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. 29, 2013
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 29, 2013								September 30, 2012
		Net			Shares		Per Share			Net		Shares	Per Share
		Income					Amount			Income			Amount
	Basic EPS	$	28,606		41,750		$	0.69		$	29,158	38,082	$	0.76
	Dilutive effect of 2.875% convertible debt	—			—		—			455		3,033	(0.04		)
	Dilutive effect of stock options, restricted stock units, and shares issuable to Philips	—			705		(0.02		)	—		656	(0.01		)
	Diluted EPS	$	28,606		42,455		$	0.67		$	29,613	41,771	$	0.71
		Thirty-Nine Weeks Ended								Thirty-Nine Weeks Ended
		September 29, 2013								September 30, 2012
		Net			Shares		Per Share			Net		Shares	Per Share
		Income					Amount			Income			Amount
	Basic EPS	$	85,400		39,928		$	2.14		$	85,118	37,987	$	2.24
	Dilutive effect of 2.875% convertible debt	780			1,727		(0.07		)	1,365		3,033	(0.13		)
	Dilutive effect of stock options, restricted stock units, and shares issuable to Philips	—			645		(0.03		)	—		624	(0.03		)
	Diluted EPS	$	86,180		42,300		$	2.04		$	86,483	41,644	$	2.08
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 29,		September 30,		September 29,			September 30,
		2013		2012		2013			2012
	Stock options	31		32		220			271
	Restricted stock units	1		17		1			6

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 29, 2013
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 and the 1995 Supplemental Plan:
		September 29,
		2013
	Shares available for grant	2,323,306
	Shares of common stock reserved for issuance	3,895,765
Schedule of Options Outstanding and Exercisable	'
	The following table sets forth certain information regarding all options outstanding and exercisable:
		September 29, 2013
		Options		Options
		Outstanding		Exercisable
	Number	773,497		199,785
	Weighted average exercise price	$	39.7	$	28.71
	Aggregate intrinsic value	$ 37.9 million		$ 12.0 million
	Weighted average remaining contractual term	4.8 years		3.6 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 29, 2013
		RSUs Nonvested		RSUs Expected
				to Vest
	Number	798,964		721,268
	Weighted average grant date per share fair value	$	43.4	$	42.88
	Aggregate intrinsic value	$ 70.9 million		$ 64.0 million
	Weighted average remaining term to vest	1.2 years		1.2 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 29,		September 30,		September 29,		September 30,
		2013		2012		2013		2012
	Cost of sales	$	571	$	463	$	1,782	$	1,327
	Research and development	511		438		1,587		1,395
	Selling, general and administrative	3,522		2,506		9,947		7,361
	Total stock-based compensation	$	4,604	$	3,407	$	13,316	$	10,083

Credit_Facilities_and_Restrict1

Credit Facilities and Restricted Cash (Tables)	9 Months Ended
	Sep. 29, 2013
Credit Facilities And Restricted Cash	'
Schedule of Letters of Credit and Restricted Cash	'
	The following table sets forth information related to guarantees and letters of credit (in thousands):
		September 29,
		2013
	Guarantees and letters of credit outstanding	$	50,996
	Amount secured by restricted cash deposits:
	Current	$	15,328
	Long-term	35,668
	Total secured by restricted cash	$	50,996

Inventories_Tables

Inventories (Tables)	9 Months Ended
	Sep. 29, 2013
Inventory Disclosure [Abstract]	'
Schedule of Inventories	'
	Inventories consisted of the following (in thousands):
		September 29,		December 31,
		2013		2012
	Raw materials and assembled parts	$	67,260	$	67,985
	Service inventories, estimated current requirements	15,774		15,898
	Work-in-process	85,460		81,104
	Finished goods	27,164		27,553
	Total current inventories	$	195,658	$	192,540
	Non-current inventories	$	64,270	$	65,116

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 29, 2013
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 29,			September 30,
		2013			2012
	Balance, beginning of period	$	131,320		$	58,053
	Goodwill additions	3,545			69,253
	Goodwill adjustments	319			2,361
	Balance, end of period	$	135,184		$	129,667
Schedule of Finite-Lived Intangible Assets by Major Class	'
	The gross amount of our other intangible assets and the related accumulated amortization were as follows (in thousands):
		September 29,			December 31,
		2013			2012
	Patents, trademarks and other	$	23,796		$	22,047
	Accumulated amortization	(8,386		)	(5,743		)
	Net patents, trademarks and other	15,410			16,304
	Customer relationships	21,319			20,305
	Accumulated amortization	(2,899		)	(1,171		)
	Net customer relationships	18,420			19,134
	Developed technology	17,938			17,686
	Accumulated amortization	(3,489		)	(1,771		)
	Net developed technology	14,449			15,915
	Note issuance costs	2,445			2,445
	Accumulated amortization	(2,445		)	(2,299		)
	Net note issuance costs	—			146
	Total intangible assets included in other long-term assets	$	48,279		$	51,499
Schedule of Amortization Expense by Major Class	'
	Amortization expense was as follows (in thousands):
		Thirty-Nine Weeks Ended
		September 29,			September 30,
		2013			2012
	Patents, trademarks and other	$	2,527		$	1,222
	Customer relationships	1,728			599
	Developed technology	1,718			1,128
	Note issuance costs	146			262
	Total amortization expense	$	6,119		$	3,211
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,			Customer Relationships			Developed Technology		Total
		Trademarks
		and Other
	Remainder of 2013	$	1,058		$	597		$	566	$	2,221
	2014	3,143			2,389			2,265		7,797
	2015	2,925			2,389			2,265		7,579
	2016	2,663			2,389			2,265		7,317
	2017	2,140			2,042			1,990		6,172
	Thereafter	3,481			8,614			5,098		17,193
	Total future amortization expense	$	15,410		$	18,420		$	14,449	$	48,279

Warranty_Reserves_Tables

Warranty Reserves (Tables)	9 Months Ended
	Sep. 29, 2013
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 29,			September 30,
		2013			2012
	Balance, beginning of period	$	12,049		$	11,683
	Reductions for warranty costs incurred	(9,478		)	(8,567		)
	Warranties issued	9,776			9,191
	Translation and changes in estimates	3			(9		)
	Balance, end of period	$	12,350		$	12,298

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Sep. 29, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Deferred Tax Assets and Liabilities, Balance Sheet Classification	'
	Net deferred tax assets (liabilities) were classified on the balance sheet as follows (in thousands):
		September 29,			December 31,
		2013			2012
	Deferred tax assets – current	$	13,120		$	12,245
	Deferred tax assets – non-current	1,084			5,092
	Deferred tax liabilities – current	(35		)	(93		)
	Deferred tax liabilities – non-current	(9,288		)	(17,588		)
	Net deferred tax assets (liabilities)	$	4,881		$	(344	)
	Valuation allowance	$	2,764		$	2,081
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 29, 2013:
	Jurisdiction		Open Tax Years
	U.S.		2008 and forward
	The Netherlands		2011 and forward
	Czech Republic		2010 and forward

RelatedParty_Activity_Tables

Related-Party Activity (Tables)	9 Months Ended
	Sep. 29, 2013
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 29,			September 30,		September 29,		September 30,
		2013			2012		2013		2012
	Product sales:
	Applied Materials, Inc.	$	1,039		$	798	$	4,630	$	931
	Lattice Semiconductor Corporation	—			—		4		—
	Cascade Microtech, Inc.	—			—		—		4
	Oregon Health and Science University	130			—		385		—
	Total product sales to related parties	1,169			798		5,019		935
	Service sales:
	Applied Materials, Inc.	220			120		550		382
	Lattice Semiconductor Corporation	3			—		9		—
	Cascade Microtech, Inc.	8			8		24		24
	Oregon Health and Science University	14			—		30		—
	Total service sales to related parties	245			128		613		406
	Total sales to related parties	$	1,414		$	926	$	5,632	$	1,341
	Purchases from Related Parties
	TMC BV	$	27		$	32	$	75	$	97
	Oregon Health and Science University	39			—		214		—
	Total purchases from related parties	$	66		$	32	$	289	$	97
Schedule of Amounts Due From (To) Related Parties	'
	Amounts due from (to) related parties were as follows (in thousands):
		September 29,
		2013
	Applied Materials, Inc.	$	113
	Cascade Microtech, Inc.	8
	TMC BV	(83		)
	Due from related parties, net	$	38

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 29, 2013
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 29,		September 30,		September 29,		September 30,
		2013		2012		2013		2012
	Sales to External Customers:
	Industry	$	103,627	$	112,804	$	306,393	$	341,843
	Science	114,869		108,981		355,770		318,949
	Total	$	218,496	$	221,785	$	662,163	$	660,792
	Gross Profit:
	Industry	$	56,216	$	58,795	$	160,517	$	175,303
	Science	48,529		45,361		153,676		131,393
	Total	$	104,745	$	104,156	$	314,193	$	306,696
Schedule of Goodwill and Total Assets by Segment	'
		September 29,		December 31,
		2013		2012
	Goodwill:
	Industry	$	52,634	$	53,572
	Science	82,550		77,748
	Total	$	135,184	$	131,320
	Total Assets:
	Industry	$	316,158	$	293,115
	Science	378,614		401,795
	Corporate and Eliminations	673,616		539,313
	Total	$	1,368,388	$	1,234,223

Restructuring_Reorganization_R1

Restructuring, Reorganization, Relocation and Severance (Tables)	9 Months Ended
	Sep. 29, 2013
Restructuring and Related Activities [Abstract]	'
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 29, 2013	Group Structure Reorganization			Total
	Beginning accrued liability	$	2,692		$	2,692
	Charged to expense, net	1,090			1,090
	Expenditures	(3,466		)	(3,466		)
	Write-offs and adjustments	50			50
	Ending accrued liability	$	366		$	366

Fair_Value_Measurements_of_Ass1

Fair Value Measurements of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 29, 2013
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 29, 2013	Level 1		Level 2		Level 3		Total
	Available for sale marketable securities:
	U.S. treasury notes	$	22,560	$	—	$	—	$	22,560
	Agency bonds	—		27,025		—		27,025
	Commercial paper	—		24,992		—		24,992
	Certificates of deposit	—		5,849		—		5,849
	Municipal bonds	—		37,228		—		37,228
	Trading securities:
	Equity securities – mutual funds	4,768		—		—		4,768
	Derivative contracts, net	—		1,311		—		1,311
	Total	$	27,328	$	96,405	$	—	$	123,733
	December 31, 2012	Level 1		Level 2		Level 3		Total
	Available for sale marketable securities:
	U.S. treasury notes	$	60,786	$	—	$	—	$	60,786
	Agency bonds	—		31,157		—		31,157
	Commercial paper	—		5,000		—		5,000
	Certificates of deposit	—		5,494		—		5,494
	Municipal bonds	—		3,228		—		3,228
	Trading securities:
	Equity securities – mutual funds	3,046		—		—		3,046
	Derivative contracts, net	—		1,655		—		1,655
	Total	$	63,832	$	46,534	$	—	$	110,366

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Sep. 29, 2013
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 29,				December 31,
		2013				2012
	Cash flow hedges	$	107,762			$	165,000
	Balance sheet hedges	136,304				225,924
	Total outstanding derivative contracts	$	244,066			$	390,924
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 29,				September 30,				September 29,				September 30,
		2013				2012				2013				2012
	Foreign currency loss, inclusive of the impact of derivatives	$	(638	)		$	(1,019	)		$	(2,164	)		$	(4,064	)
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 29, 2013	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	$	1,369		$	(546	)	$	823			$	—		$	—		$	—
	Foreign exchange contracts not designated as hedging instruments	1,828			(775		)	1,053				1,086			(521		)	565
	Total	$	3,197		$	(1,321	)	$	1,876			$	1,086		$	(521	)	$	565
		Offsetting of Derivative Assets										Offsetting of Derivative Liabilities
	December 31, 2012	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	$	3,019		$	(1,492	)	$	1,527			$	—		$	—		$	—
	Foreign exchange contracts not designated as hedging instruments	2,725			(1,589		)	1,136				4,289			(3,281		)	1,008
	Total	$	5,744		$	(3,081	)	$	2,663			$	4,289		$	(3,281	)	$	1,008
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 29,				September 30,				September 29,				September 30,
		2013				2012				2013				2012
	Amount of gain/(loss):
	Recognized in AOCI (effective portion)	$	(637	)		$	1,892			$	(3,567	)		$	7,260
	Reclassified from AOCI into cost of sales (effective portion)	120				(705		)		(460		)		(2,097		)
	Recognized in other, net (ineffective portion and amount excluded from effectiveness testing)	—				(3		)		(46		)		10
	Foreign Exchange Contracts Not in Cash Flow Hedging Relationships
	Amount of gain/(loss):
	Recognized in other, net	$	(491	)		$	(2,241	)		$	3,582			$	(5,872	)

Changes_in_Accumulated_Other_C1

Changes in Accumulated Other Comprehensive Income by Component (Tables)	9 Months Ended
	Sep. 29, 2013
Changes in Accumulated Other Comprehensive Income [Abstract]	'
Schedule of Accumulated Other Comprehensive Income	'
	The following table illustrates 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 the Consolidated Statements of Operations by component (net of tax, in thousands):
		Thirteen Weeks Ended September 29, 2013
		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	$	29,537	$	1	$	(890	)	$	(748	)	$	27,900
	Other comprehensive income before reclassifications	17,126		24		(70		)	1,292			18,372
	Amounts reclassified from AOCI to:
	Cost of goods sold	—		—		—			(120		)	(120		)
	Total reclassifications out of AOCI	—		—		—			(120		)	(120		)
	Net current period other comprehensive income	17,126		24		(70		)	1,172			18,252
	Ending balance	$	46,663	$	25	$	(960	)	$	424		$	46,152
		Thirty-Nine Weeks Ended September 29, 2013
		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	$	38,890	$	4	$	(819	)	$	481		$	38,556
	Other comprehensive income before reclassifications	7,773		21		(141		)	(563		)	7,090
	Amounts reclassified from AOCI to:
	Cost of goods sold	—		—		—			460			460
	Other income (expense)	—		—		—			46			46
	Total reclassifications out of AOCI	—		—		—			506			506
	Net current period other comprehensive income	7,773		21		(141		)	(57		)	7,596
	Ending balance	$	46,663	$	25	$	(960	)	$	424		$	46,152

Organization_and_Basis_of_Pres2

Organization and Basis of Presentation (Details)	Sep. 29, 2013
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 $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Earnings Per Share Reconciliation	'	'	'	'
Basic EPS - net income	$28,606	$29,158	$85,400	$85,118
Basic EPS - shares	41,750	38,082	39,928	37,987
Basic EPS - per share amount	$0.69	$0.76	$2.14	$2.24
Dilutive effect of 2.875% convertible debt - net income	0	455	780	1,365
Dilutive effect of 2.875% convertible debt - shares	0	3,033	1,727	3,033
Dilutive effect of 2.875% convertible debt - per share amount	$0	($0.04)	($0.07)	($0.13)
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	705	656	645	624
Dilutive effect of stock options, restricted stock units, and shares issuable to Philips - per share amount	($0.02)	($0.01)	($0.03)	($0.03)
Diluted EPS - net income	$28,606	$29,613	$86,180	$86,483
Diluted EPS - shares	42,455	41,771	42,300	41,644
Diluted EPS - per share amount	$0.67	$0.71	$2.04	$2.08

Earnings_Per_Share_Antidilutiv

Earnings Per Share - Antidilutive Securities (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Stock Options [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities excluded from computation of diluted EPS	31	32	220	271
Restricted Stock Units [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Diluted Earnings Per Share [Line Items]	'	'	'	'
Antidilutive securities excluded from computation of diluted EPS	1	17	1	6

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Details) (Convertible Subordinated Debt [Member])	Sep. 30, 2013	Sep. 29, 2013
Convertible Subordinated Debt [Member]	'	'
Convertible Notes [Line Items]	'	'
Convertible notes, stated interest rate	2.88%	2.88%

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 29, 2013	Sep. 29, 2013	Sep. 29, 2013	Sep. 29, 2013	Mar. 31, 2013	Sep. 29, 2013	Mar. 31, 2013	Sep. 29, 2013
		Stock Options [Member]	Restricted Stock Units [Member]	Employee Share Purchase Plan [Member]	Employee Share Purchase Plan [Member]	Stock Incentive Plan [Member]	Stock Incentive Plan [Member]	Supplemental Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'
Number of shares authorized	'	'	'	3,950,000	3,700,000	11,000,000	10,750,000	500,000
Shares available for grant	2,323,306	'	'	'	'	'	'	'
Shares of common stock reserved for issuance	3,895,765	'	'	'	'	'	'	'
Total compensation cost not yet recognized	$32	'	'	'	'	'	'	'
Total compensation cost not yet recognized - period for recognition	'1 year 9 months 18 days	'	'	'	'	'	'	'
Options Outstanding and Exercisable:	'	'	'	'	'	'	'	'
Options outstanding, number	'	773,497	'	'	'	'	'	'
Options exercisable, number	'	199,785	'	'	'	'	'	'
Options outstanding, weighted average exercise price	'	$39.70	'	'	'	'	'	'
Options exercisable, weighted average exercise price	'	$28.71	'	'	'	'	'	'
Options outstanding, aggregate intrinsic value	'	37.9	'	'	'	'	'	'
Options exercisable, aggregate intrinsic value	'	12	'	'	'	'	'	'
Options outstanding, weighted average remaining contractual term (in years)	'	'4 years 9 months 18 days	'	'	'	'	'	'
Options exercisable, weighted average remaining contractual term (in years)	'	'3 years 7 months 6 days	'	'	'	'	'	'
Restricted Stock Units Nonvested and Expected to Vest	'	'	'	'	'	'	'	'
Restricted stock units nonvested, number	'	'	798,964	'	'	'	'	'
Restricted stock units expected to vest, number	'	'	721,268	'	'	'	'	'
Restricted stock units nonvested, weighted average grant date per share fair value	'	'	$43.40	'	'	'	'	'
Restricted stock units expected to vest, weighted average grant date per share fair value	'	'	$42.88	'	'	'	'	'
Restricted stock units nonvested, aggregate intrinsic value	'	'	70.9	'	'	'	'	'
Restricted stock units expected to vest, aggregate intrinsic value	'	'	$64	'	'	'	'	'
Restricted stock units nonvested, weighted average remaining term to vest (in years)	'	'	'1 year 2 months 12 days	'	'	'	'	'
Restricted stock units expected to vest, weighted average remaining term to vest (in years)	'	'	'1 year 2 months 12 days	'	'	'	'	'

StockBased_Compensation_Alloca

Stock-Based Compensation - Allocation in Income Statement (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	$4,604	$3,407	$13,316	$10,083
Cost of Sales [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	571	463	1,782	1,327
Research and Development Expense [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	511	438	1,587	1,395
Selling, General and Administrative [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Stock-based compensation expense	$3,522	$2,506	$9,947	$7,361

Credit_Facilities_and_Restrict2

Credit Facilities and Restricted Cash - Credit Facilities (Details) (USD $)	9 Months Ended
	Sep. 29, 2013
Credit Agreement [Member]	'
Line of Credit Facility [Line Items]	'
Line of credit facility, expiration date	26-Apr-16
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

Credit_Facilities_and_Restrict3

Credit Facilities and Restricted Cash - Letters of Credit and Restricted Cash (Details) (USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
CREDIT FACILITIES AND RESTRICTED CASH [Abstract]	'	'
Guarantees and letters of credit outstanding	$50,996	'
Short-term restricted cash	15,328	14,522
Long-term restricted cash	35,668	27,425
Total secured by restricted cash	$50,996	'

Inventories_Details

Inventories (Details) (USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]	'	'
Raw materials and assembled parts	$67,260	$67,985
Service inventories, estimated current requirements	15,774	15,898
Work-in-process	85,460	81,104
Finished goods	27,164	27,553
Total current inventories	195,658	192,540
Non-current inventories	$64,270	$65,116

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Goodwill (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012
Goodwill [Roll Forward]	'	'
Goodwill, beginning of period	$131,320	$58,053
Goodwill additions	3,545	69,253
Goodwill adjustments	319	2,361
Goodwill, end of period	$135,184	$129,667

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets Acquisition information (Details) (nanoTechnology Systems Pty. Ltd. [Member], USD $)	3 Months Ended	9 Months Ended
	Sep. 29, 2013	Sep. 29, 2013	Aug. 09, 2013
Business Acquisition [Line Items]	'	'	'
Percentage of voting interets acquired	'	'	100.00%
Acquisition purchase price	'	'	$3,600,000
Acquisition related transaction costs	200,000	200,000	'
Net tangible liabilities assumed	'	'	1,500,000
Net intangible assets acquired, weighted average amortization period	'	'5 years	'
Tax deductible goodwill	'	'	0
Revenue	700,000	700,000	'
Net income	200,000	200,000	'
Science [Member]	'	'	'
Business Acquisition [Line Items]	'	'	'
Acquisition related goodwill	'	'	3,500,000
Customer relationships [Member]	'	'	'
Business Acquisition [Line Items]	'	'	'
Net intangible assets acquired, fair value	'	'	$800,000

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets - Intangible Assets (Details) (USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, accumulated amortization	($17,218)	($10,984)
Finite-lived intangible assets, net	48,279	51,499
Patents, trademarks and other [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	23,796	22,047
Finite-lived intangible assets, accumulated amortization	-8,386	-5,743
Finite-lived intangible assets, net	15,410	16,304
Customer relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	21,319	20,305
Finite-lived intangible assets, accumulated amortization	-2,899	-1,171
Finite-lived intangible assets, net	18,420	19,134
Developed technology [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	17,938	17,686
Finite-lived intangible assets, accumulated amortization	-3,489	-1,771
Finite-lived intangible assets, net	14,449	15,915
Note issuance costs [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Finite-lived intangible assets, gross	2,445	2,445
Finite-lived intangible assets, accumulated amortization	-2,445	-2,299
Finite-lived intangible assets, net	$0	$146

Goodwill_and_Other_Intangible_5

Goodwill and Other Intangible Assets - Amortization of Intangibles (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets [Abstract]	'	'	'
Finite-Lived Intangible Assets, Amortization Expense	$6,119	$3,211	'
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]	'	'	'
Expected amortization, remainder of 2013	2,221	'	'
Expected amortization, 2014	7,797	'	'
Expected amortization, 2015	7,579	'	'
Expected amortization, 2016	7,317	'	'
Expected amortization, 2017	6,172	'	'
Expected amortization thereafter	17,193	'	'
Total expected amortization expense	48,279	'	51,499
Patents, trademarks and other [Member]	'	'	'
Finite-Lived Intangible Assets [Abstract]	'	'	'
Finite-Lived Intangible Assets, Amortization Expense	2,527	1,222	'
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]	'	'	'
Expected amortization, remainder of 2013	1,058	'	'
Expected amortization, 2014	3,143	'	'
Expected amortization, 2015	2,925	'	'
Expected amortization, 2016	2,663	'	'
Expected amortization, 2017	2,140	'	'
Expected amortization thereafter	3,481	'	'
Total expected amortization expense	15,410	'	16,304
Customer relationships [Member]	'	'	'
Finite-Lived Intangible Assets [Abstract]	'	'	'
Finite-Lived Intangible Assets, Amortization Expense	1,728	599	'
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]	'	'	'
Expected amortization, remainder of 2013	597	'	'
Expected amortization, 2014	2,389	'	'
Expected amortization, 2015	2,389	'	'
Expected amortization, 2016	2,389	'	'
Expected amortization, 2017	2,042	'	'
Expected amortization thereafter	8,614	'	'
Total expected amortization expense	18,420	'	19,134
Developed technology [Member]	'	'	'
Finite-Lived Intangible Assets [Abstract]	'	'	'
Finite-Lived Intangible Assets, Amortization Expense	1,718	1,128	'
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]	'	'	'
Expected amortization, remainder of 2013	566	'	'
Expected amortization, 2014	2,265	'	'
Expected amortization, 2015	2,265	'	'
Expected amortization, 2016	2,265	'	'
Expected amortization, 2017	1,990	'	'
Expected amortization thereafter	5,098	'	'
Total expected amortization expense	14,449	'	15,915
Note issuance costs [Member]	'	'	'
Finite-Lived Intangible Assets [Abstract]	'	'	'
Finite-lived intangible assets, useful life	'7 years	'	'
Finite-Lived Intangible Assets, Amortization Expense	146	262	'
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]	'	'	'
Total expected amortization expense	$0	'	$146
Maximum [Member] | Patents, trademarks and other [Member]	'	'	'
Finite-Lived Intangible Assets [Abstract]	'	'	'
Finite-lived intangible assets, useful life	'15 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 $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012
Product Warranty Reserve Activity [Roll Forward]	'	'
Balance, beginning of period	$12,049	$11,683
Reductions for warranty costs incurred	-9,478	-8,567
Warranties issued	9,776	9,191
Translation and changes in estimates	3	-9
Balance, end of period	$12,350	$12,298

Income_Taxes_Net_Deferred_Tax_

Income Taxes - Net Deferred Tax Assets (Details) (USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred Income Taxes [Abstract]	'	'
Deferred tax assets - current	$13,120	$12,245
Deferred tax assets - noncurrent	1,084	5,092
Deferred tax liabilities - current	-35	-93
Deferred tax liabilities - noncurrent	-9,288	-17,588
Net deferred tax assets (liabilities)	4,881	-344
Valuation allowance	$2,764	$2,081

Income_Taxes_Unrecognized_Tax_

Income Taxes - Unrecognized Tax Benefits and Open Tax Years (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 29, 2013	Sep. 29, 2013
Income Tax Contingency [Line Items]	'	'
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	$1.70	$1.70
United States [Member]	'	'
Income Tax Contingency [Line Items]	'	'
Tax years open for examination, by major tax jurisdiction	'	'2008
The Netherlands [Member]	'	'
Income Tax Contingency [Line Items]	'	'
Tax years open for examination, by major tax jurisdiction	'	'2011
Czech Republic [Member]	'	'
Income Tax Contingency [Line Items]	'	'
Tax years open for examination, by major tax jurisdiction	'	'2010

RelatedParty_Activity_Details

Related-Party Activity (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Related Party Transaction [Line Items]	'	'	'	'
Product sales to related parties	$1,169	$798	$5,019	$935
Service sales to related parties	245	128	613	406
Total sales to related parties	1,414	926	5,632	1,341
Purchases from related parties	66	32	289	97
Applied Materials [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Product sales to related parties	1,039	798	4,630	931
Service sales to related parties	220	120	550	382
Lattice Semiconductor [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Product sales to related parties	0	0	4	0
Service sales to related parties	3	0	9	0
Cascade Microtech [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Product sales to related parties	0	0	0	4
Service sales to related parties	8	8	24	24
Oregon Health and Science University [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Product sales to related parties	130	0	385	0
Service sales to related parties	14	0	30	0
Purchases from related parties	39	0	214	0
TMC BV [Member]	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'
Purchases from related parties	$27	$32	$75	$97

RelatedParty_Activity_Schedule

Related-Party Activity - Schedule of Amounts Due From (To) Related Parties (Details) (USD $)	Sep. 29, 2013
In Thousands, unless otherwise specified
Related Party Transaction [Line Items]	'
Due from (to) related party	$38
Applied Materials [Member]	'
Related Party Transaction [Line Items]	'
Due from (to) related party	113
Cascade Microtech [Member]	'
Related Party Transaction [Line Items]	'
Due from (to) related party	8
TMC BV [Member]	'
Related Party Transaction [Line Items]	'
Due from (to) related party	($83)

Commitments_and_Contingencies_

Commitments and Contingencies - Purchase Obligations (Details) (Inventories [Member], USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 29, 2013
Inventories [Member]	'
Unrecorded Unconditional Purchase Obligation [Line Items]	'
Non-cancelable purchase orders	$95.30
Purchase commitment, maximum expiration date	'second quarter of 2016

Segment_Information_Sales_to_E

Segment Information - Sales to External Customers and Gross Profit (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]	'	'	'	'
Sales to external customers	$218,496	$221,785	$662,163	$660,792
Gross profit	104,745	104,156	314,193	306,696
Industry [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales to external customers	103,627	112,804	306,393	341,843
Gross profit	56,216	58,795	160,517	175,303
Science [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Sales to external customers	114,869	108,981	355,770	318,949
Gross profit	$48,529	$45,361	$153,676	$131,393

Segment_Information_Goodwill_a

Segment Information - Goodwill and Total Assets (Details) (USD $)	Sep. 29, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Segment Reporting Information [Line Items]	'	'	'	'
Goodwill	$135,184	$131,320	$129,667	$58,053
Total Assets	1,368,388	1,234,223	'	'
Industry [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Goodwill	52,634	53,572	'	'
Total Assets	316,158	293,115	'	'
Science [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Goodwill	82,550	77,748	'	'
Total Assets	378,614	401,795	'	'
Corporate Eliminations [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Total Assets	$673,616	$539,313	'	'

Restructuring_Reorganization_R2

Restructuring, Reorganization, Relocation and Severance (Details) (USD $)	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Dec. 31, 2012	Sep. 29, 2013
					Group Structure Reorganization [Member]	Group Structure Reorganization [Member]	Group Structure Reorganization [Member]
Restructuring Cost and Reserve [Line Items]	'	'	'	'	'	'	'
Restructuring, reorganization, relocation and severance	$0	$0	$1,090,000	$0	$1,090,000	$2,900,000	'
Restructuring Reserve [Roll Forward]	'	'	'	'	'	'	'
Beginning accrued liability	'	'	2,692,000	'	2,692,000	'	'
Restructuring, reorganization, relocation and severance	0	0	1,090,000	0	1,090,000	2,900,000	'
Expenditures	'	'	-3,466,000	'	-3,466,000	'	'
Write-offs and adjustments	'	'	50,000	'	50,000	'	'
Ending accrued liability	366,000	'	366,000	'	366,000	'	'
Expected additional cost of restructuring plan	'	'	'	'	'	'	0
Expected total cost of restructuring plan	'	'	'	'	'	'	$4,000,000

Fair_Value_of_Assets_and_Liabi

Fair Value of Assets and Liabilities - Securities (Details) (Fair Value, Measurements, Recurring [Member], USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Equity securities - mutual funds	$4,768	$3,046
Derivative contracts, net	0	0
Assets, fair value	27,328	63,832
Fair Value, Inputs, Level 1 [Member] | U.S. treasury notes [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	22,560	60,786
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	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 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Equity securities - mutual funds	0	0
Derivative contracts, net	1,311	1,655
Assets, fair value	96,405	46,534
Fair Value, Inputs, Level 2 [Member] | U.S. treasury notes [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] | Agency bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	27,025	31,157
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	24,992	5,000
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	5,849	5,494
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	37,228	3,228
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. treasury notes [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] | 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	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
Estimate of Fair Value, Fair Value Disclosure [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Equity securities - mutual funds	4,768	3,046
Derivative contracts, net	1,311	1,655
Assets, fair value	123,733	110,366
Estimate of Fair Value, Fair Value Disclosure [Member] | U.S. treasury notes [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	22,560	60,786
Estimate of Fair Value, Fair Value Disclosure [Member] | Agency bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	27,025	31,157
Estimate of Fair Value, Fair Value Disclosure [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	24,992	5,000
Estimate of Fair Value, Fair Value Disclosure [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	5,849	5,494
Estimate of Fair Value, Fair Value Disclosure [Member] | Municipal Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available for sale marketable securities	$37,228	$3,228

Convertible_Notes_Details

Convertible Notes (Details) (USD $)	9 Months Ended				9 Months Ended
Share data in Millions, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2013	Sep. 29, 2013
			Convertible Subordinated Debt [Member]	Convertible Subordinated Debt [Member]	Converted Into Cash [Member]
Convertible Notes [Line Items]	'	'	'	'	'
Convertible notes, issuance date	'	'	19-May-06	'	'
Convertible notes, face amount at issuance	'	'	$115,000,000	'	'
Convertible notes, stated interest rate	'	'	2.88%	2.88%	'
Convertible notes, issuance costs at time of issuance	'	'	3,100,000	'	'
Convertible notes, redeemed	'	'	26,000,000	'	'
Convertible notes, maturity date	'	'	1-Jun-13	'	'
Convertible notes, amount converted	89,000,000	'	'	'	100,000
Debt Conversion, Converted Instrument, NonCash Transaction, Amount	$88,937,000	$0	'	'	'
Shares issued during period for debt conversion	3	'	'	'	'

Derivative_Instruments_Details

Derivative Instruments (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Dec. 31, 2012
Notional Amount of Derivatives, Total [Abstract]	'	'
Total outstanding derivative contracts	$244,066	$390,924
Outstanding derivative contracts maturity, maximum	'1 year 3 months 0 days	'
Cash Flow Hedges [Member]	'	'
Notional Amount of Derivatives, Total [Abstract]	'	'
Total outstanding derivative contracts	107,762	165,000
Balance Sheet Hedges [Member]	'	'
Notional Amount of Derivatives, Total [Abstract]	'	'
Total outstanding derivative contracts	$136,304	$225,924

Derivative_Instruments_Balance

Derivative Instruments - Balance Sheet Location (Details) (Foreign Exchange Contract [Member], USD $)	Sep. 29, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Other Current Assets [Member]	'	'
Offsetting Derivative Assets [Abstract]	'	'
Gross amounts of recognized assets	$3,197	$5,744
Gross amounts offset in the balance sheet	-1,321	-3,081
Net amounts presented in other current assets	1,876	2,663
Other Current Liabilities [Member]	'	'
Offsetting Derivative Liabilities [Abstract]	'	'
Gross amounts of recognized liabilities	1,086	4,289
Gross amounts offset in the balance sheet	-521	-3,281
Net amounts presented in other current liabilities	565	1,008
Designated as Hedging Instrument [Member] | Other Current Assets [Member]	'	'
Offsetting Derivative Assets [Abstract]	'	'
Gross amounts of recognized assets	1,369	3,019
Gross amounts offset in the balance sheet	-546	-1,492
Net amounts presented in other current assets	823	1,527
Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]	'	'
Offsetting Derivative Liabilities [Abstract]	'	'
Gross amounts of recognized liabilities	0	0
Gross amounts offset in the balance sheet	0	0
Net amounts presented in other current liabilities	0	0
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]	'	'
Offsetting Derivative Assets [Abstract]	'	'
Gross amounts of recognized assets	1,828	2,725
Gross amounts offset in the balance sheet	-775	-1,589
Net amounts presented in other current assets	1,053	1,136
Not Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]	'	'
Offsetting Derivative Liabilities [Abstract]	'	'
Gross amounts of recognized liabilities	1,086	4,289
Gross amounts offset in the balance sheet	-521	-3,281
Net amounts presented in other current liabilities	$565	$1,008

Derivative_Instruments_Effect_

Derivative Instruments - Effect on Income Statement (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Foreign currency loss, inclusive of the impact of derivatives	($638)	($1,019)	($2,164)	($4,064)
Foreign Exchange Contract [Member] | Other Comprehensive Income (Loss) [Member] | Cash Flow Hedges [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Recognized in AOCI (effective portion)	-637	1,892	-3,567	7,260
Foreign Exchange Contract [Member] | Cost of Sales [Member] | Cash Flow Hedges [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Reclassified from AOCI into cost of sales (effective portion)	120	-705	-460	-2,097
Foreign Exchange Contract [Member] | Other Income Expense Net [Member] | Not Designated as Hedging Instrument [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Recognized in other, net	-491	-2,241	3,582	-5,872
Foreign Exchange Contract [Member] | Other Income Expense Net [Member] | Cash Flow Hedges [Member]	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Recognized in other, net (ineffective portion and amount excluded from effectiveness testing)	$0	($3)	($46)	$10

Changes_in_Accumulated_Other_C2

Changes in Accumulated Other Comprehensive Income by Component (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Beginning balance	$27,900	'	$38,556	'
Other comprehensive income before reclassifications	18,372	'	7,090	'
Cost of goods sold	-113,751	-117,629	-347,970	-354,096
Other income (expense)	661	1,712	3,618	5,030
Net current period other comprehensive income	18,252	'	7,596	'
Ending balance	46,152	'	46,152	'
Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Cost of goods sold	-120	'	-460	'
Other income (expense)	'	'	-46	'
Total reclassification out of AOCI	-120	'	-506	'
Accumulated Translation Adjustment [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Beginning balance	29,537	'	38,890	'
Other comprehensive income before reclassifications	17,126	'	7,773	'
Net current period other comprehensive income	17,126	'	7,773	'
Ending balance	46,663	'	46,663	'
Accumulated Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Cost of goods sold	0	'	0	'
Other income (expense)	'	'	0	'
Total reclassification out of AOCI	0	'	0	'
Accumulated Net Unrealized Investment Gain (Loss) [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Beginning balance	1	'	4	'
Other comprehensive income before reclassifications	24	'	21	'
Net current period other comprehensive income	24	'	21	'
Ending balance	25	'	25	'
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Cost of goods sold	0	'	0	'
Other income (expense)	'	'	0	'
Total reclassification out of AOCI	0	'	0	'
Accumulated Defined Benefit Plans Adjustment [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Beginning balance	-890	'	-819	'
Other comprehensive income before reclassifications	-70	'	-141	'
Net current period other comprehensive income	-70	'	-141	'
Ending balance	-960	'	-960	'
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Cost of goods sold	0	'	0	'
Other income (expense)	'	'	0	'
Total reclassification out of AOCI	0	'	0	'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Beginning balance	-748	'	481	'
Other comprehensive income before reclassifications	1,292	'	-563	'
Net current period other comprehensive income	1,172	'	-57	'
Ending balance	424	'	424	'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Accumulated Other Comprehensive Income, Net of Tax [Roll Forward]	'	'	'	'
Cost of goods sold	-120	'	-460	'
Other income (expense)	'	'	-46	'
Total reclassification out of AOCI	($120)	'	($506)	'

Factoring_of_Accounts_Receivab1

Factoring of Accounts Receivable (Details) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 29, 2013	Sep. 29, 2013	Dec. 31, 2012
Factoring of Accounts Receivable [Abstract]	'	'	'
Accounts receivable sold without recourse	$3.20	$8.10	$0