Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2008
Income (loss) from continuing operations before taxes and noncontrolling interests [Abstract]
Domestic									$ (50,106)	$ (26,065)	$ (15,995)
Foreign									217,249	202,470	186,032
Income before taxes									167,143	176,405	170,037
Current income tax expense:
Federal									(27,031)	(603)	8,409
State and local									386	280	574
Foreign									60,282	51,225	44,351
Total current income tax expense									33,637	50,902	53,334
Deferred income tax expense:
Federal									7,999	2,215	(8,557)
State and local									204	92	(240)
Foreign									7,460	(573)	1,969
Total deferred income tax expense									15,663	1,734	(6,828)
Total income tax expense									49,300	52,636	46,506
Deferred tax assets:
Pension and other retiree obligations	43,393				34,343				43,393	34,343
Inventories	8,013				8,759				8,013	8,759
Net operating loss carryforwards	198,677				182,691				198,677	182,691
Tax credit carryforwards	25,046				20,780				25,046	20,780
Other accruals and reserves	32,376				31,469				32,376	31,469
Total gross deferred tax assets	307,505				278,042				307,505	278,042
Less valuation allowance	(186,614)				(183,289)				(186,614)	(183,289)
Deferred tax assets, net	120,891				94,753				120,891	94,753
Deferred tax liabilities:
Tax over book depreciation	(10,257)				(10,652)				(10,257)	(10,652)
Intangible assets other than goodwill	(20,507)				(1,539)				(20,507)	(1,539)
Earnings not permanently reinvested	(25,334)				(1,652)				(25,334)	(1,652)
Convertible debentures	(175,935)				(162,371)				(175,935)	(162,371)
Other - net	(3,590)				(2,741)				(3,590)	(2,741)
Total gross deferred tax liabilities	(235,623)				(178,955)				(235,623)	(178,955)
Net deferred tax assets (liabilities)	(114,732)				(84,202)				(114,732)	(84,202)
Reconciliation of income tax expense at federal statutory rate to actual income tax provision [Abstract]
Tax at statutory rate									58,500	61,742	59,513
State income taxes, net of U.S. federal tax benefit									384	242	217
Effect of foreign operations									(27,372)	(18,696)	(19,083)
Tax on earnings not permanently reinvested									25,728	0	0
Unrecognized tax benefits									(21,603)	2,862	6,626
Change in valuation allowance on deferred tax asset									0	(285)	(4,036)
Foreign income taxable in the U.S.									13,499	11,961	7,476
U.S. foreign tax credits									0	0	(4,257)
Effect of statutory rate changes on deferred tax assets									226	(2,867)	0
Other									(62)	(2,323)	50
Total income tax expense									49,300	52,636	46,506
Operating Loss Carryforwards [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	2,400								2,400
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	2,700								2,700
Net operating loss carryforwards [Abstract]
Discrete Tax Items Included Income Tax Expense	(1,228)	0	0	0	0	(2,867)	0	(1,330)	(1,228)	(4,197)	(4,036)
Income tax uncertainties [Abstract]
Cash repatriated during the current period									4,588		72,100
Foreign earnings without provision for US Tax	2,686,284								2,686,284
Additional expected repatriation												112,500
Net income taxes paid (refunded)									62,051	44,757	46,611
Company accrued interest and penalties related to the unrecognized tax benefits	3,104				7,766				3,104	7,766
Company recognized interest and penalties.									1,839	2,218	2,833
Unrecognized tax benefits [Roll Forward]
Balance at beginning of year				45,877				51,771	45,877	51,771	48,152
Addition based on tax positions related to the current year									1,641	0	665
Addition based on tax positions related to prior years									6,484	4,015	3,498
Currency translation adjustments									(1,387)	310	(215)
Reduction based on tax positions related to prior years									0	(2,054)	0
Reduction for settlements									(3,556)	(7,316)	(329)
Reduction for lapses of statute of limitation									(22,476)	(849)	0
Balance at end of year	26,583				45,877				26,583	45,877	51,771
California Research Credit [Member]
Available tax credit carryforwards [Abstract]
California Research Credit	10,926								10,926
Expiration Date									No expiration
U.S. Foreign Tax Credit [Member]
Available tax credit carryforwards [Abstract]
Federal Alternative Minimum Tax	11,093								11,093
Minimum [Member] | U.S. Foreign Tax Credit [Member]
Available tax credit carryforwards [Abstract]
Expiration Date									2020.00
Maximum [Member] | U.S. Foreign Tax Credit [Member]
Available tax credit carryforwards [Abstract]
Expiration Date									2022.00
AUSTRIA [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	14,515								14,515
Expiration date									No expiration
BELGIUM [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	173,541								173,541
Expiration date									No expiration
BRAZIL [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	14,876								14,876
Expiration date									No expiration
Germany [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	42,968								42,968
Expiration date									No expiration
Israel [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	62,528								62,528
Expiration date									No expiration
NETHERLANDS [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	23,411								23,411
NETHERLANDS [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2015
NETHERLANDS [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2023
California [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	53,979								53,979
California [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2016
California [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2034
Pennsylvania [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	736,159								736,159
Pennsylvania [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2018
Pennsylvania [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2034
United States [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	78,784								78,784
United States [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2033
United States [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date									2034
BCcomponents acquisition [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	64,232								64,232
Valuation allowances									$ 21,833	$ 24,788