Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
TCJA income tax expense Abstract [Abstract]
TCJA remeasurement of deferred tax liabilities									$ (1,211)	$ (74,816)	$ 0
TCJA tax on unremitted foreign earnings									7,425	215,558	0
TCJA foreign taxes on assumed repatriation									19,282	213,000
TCJA reversal of deferred taxes due to cancellation of repatriation plan									0	(118,887)
Total tax expense enactment of TCJA	$ 0	$ 13,496	$ 12,000	$ 0	$ 234,855	$ 0	$ 0	$ 0	25,496	234,855
Cumulative Impact of TCJA Remeasurement of Deferred Tax Liabilities									(76,027)
Cumulative impact of TCJA tax on unremitted foreign earnings									222,983
Cumulative impact of TCJA foreign taxes on assumed repatriation									232,282
Cumulative impact of TCJA reversal of deferred taxes due to cancellation of repatriation									(118,887)
Cumulative total tax expense enactment of TCJA									260,351
Income (loss) from continuing operations before taxes and noncontrolling interests [Abstract]
Domestic									(39,861)	(40,171)	(135,953)
Foreign									456,637	319,535	230,169
Income before taxes					67,025	86,188	75,709	50,442	416,776	279,364	94,216
Current income tax expense:
Federal									18,756	180,873	358
State and local									209	108	5
Foreign									263,247	65,566	46,999
Total current income tax expense									282,212	246,547	47,362
Deferred income tax expense:
Federal									(58,386)	(101,896)	6,163
State and local									(3,117)	1,538	(3,039)
Foreign									(150,470)	152,735	(5,643)
Total deferred income tax expense									(211,973)	52,377	(2,519)
Total income tax expense					244,526	21,605	19,300	13,493	70,239	298,924	44,843
Deferred tax assets:
Pension and other retiree obligations	43,238				43,536				43,238	43,536
Inventories	9,795				9,658				9,795	9,658
Property and equipment	5,888				3,798				5,888	3,798
Net operating loss carryforwards	128,177				136,599				128,177	136,599
Tax credit carryforwards	72,708				13,328				72,708	13,328
Other accruals and reserves	19,645				22,930				19,645	22,930
Total gross deferred tax assets	279,451				229,849				279,451	229,849
Less valuation allowance	(200,809)				(149,070)				(200,809)	(149,070)
Deferred tax assets, net	78,642				80,779				78,642	80,779
Deferred tax liabilities:
Earnings not permanently reinvested	(65,537)				(213,000)				(65,537)	(213,000)
Convertible debentures	(32,488)				(135,576)				(32,488)	(135,576)
Other - net	(7,370)				(6,125)				(7,370)	(6,125)
Total gross deferred tax liabilities	(105,395)				(354,701)				(105,395)	(354,701)
Net deferred tax assets (liabilities)	(26,753)				(273,922)				(26,753)	(273,922)
Discrete Tax Items Repatriation	3,037	(680)	9,006	(1,316)	2,702	892	1,240	968	10,047	5,802	3,553
Tax effects of changes in uncertain tax positions	0	0	0	0	2,369	(804)	0	0		(1,565)	(8,704)
Additional expected repatriation									1,200,000	1,100,000
Reconciliation of income tax expense at federal statutory rate to actual income tax provision [Abstract]
Tax at statutory rate									87,523	97,777	32,976
State income taxes, net of U.S. federal tax benefit									(2,298)	1,070	(1,972)
Effect of foreign operations									5,736	(54,807)	(26,551)
Tax on earnings not permanently reinvested									9,304	88,311	(3,553)
Unrecognized tax benefits									2,669	5,887	(8,453)
Discrete Tax Items Convertible Debenture Repurchase									(52,312)	0	0
TCJA remeasurement of deferred tax liabilities									(1,211)	(74,816)	0
TCJA tax on unremitted foreign earnings									7,425	215,558	0
Foreign income taxable in the U.S.									15,055	20,436	18,442
Discrete Tax Items - Pension Settlement									0	0	34,853
Other									(1,652)	(492)	(899)
Total income tax expense					244,526	21,605	19,300	13,493	70,239	298,924	44,843
Net operating loss carryforwards [Abstract]
Discrete Tax Items Included Income Tax Expense									(39,428)	230,618	22,596
Available tax credit carryforwards [Abstract]
Discrete Tax Items Repatriation	(3,037)	680	(9,006)	1,316	(2,702)	(892)	(1,240)	(968)	(10,047)	(5,802)	(3,553)
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	57,900								57,900
Income tax uncertainties [Abstract]
Cash repatriated during the current period									724,000	38,000	46,000
Expected TCJA tax payment, net	184,467				180,000				184,467	180,000
Future cash repatriation next fiscal quarter	300,000								300,000
Discrete Tax Items Debt Extinguishment	(20,914)	$ 0	$ (33,963)	0	0	$ 0	$ 0	0	54,877
Net income taxes paid (refunded)									248,958	76,900	58,788
Company accrued interest and penalties related to the unrecognized tax benefits	2,887				2,845				2,887	2,845
Company recognized interest and penalties.									1,470	2,479	542
Unrecognized tax benefits [Roll Forward]
Balance at beginning of year				$ 17,056				$ 16,805	17,056	16,805	23,527
Addition based on tax positions related to the current year									4,332	3,911	1,553
Addition based on tax positions related to prior years									2,066	1,837	1,047
Currency translation adjustments									(984)	915	(96)
Reduction based on tax positions related to prior years									0	(1,473)	0
Reduction for settlements									(1,229)	(4,077)	(1,210)
Reduction for lapses of statute of limitation									0	(862)	(8,016)
Balance at end of year	21,241				$ 17,056				21,241	$ 17,056	$ 16,805
Minimum [Member]
Available tax credit carryforwards [Abstract]
Decrease in Unrecognized Tax Benefits is Reasonably Possible	818								818
Maximum [Member]
Available tax credit carryforwards [Abstract]
Decrease in Unrecognized Tax Benefits is Reasonably Possible	5,713								5,713
AUSTRIA [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	15,763								15,763
BELGIUM [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	162,787								162,787
BRAZIL [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	11,774								11,774
Israel [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	10,707								10,707
JAPAN [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	5,052								$ 5,052
JAPAN [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2020
JAPAN [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2026
NETHERLANDS [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	12,216								$ 12,216
NETHERLANDS [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2019
NETHERLANDS [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2026
The Republic of China (Taiwan) [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	18,833								$ 18,833
The Republic of China (Taiwan) [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2024
The Republic of China (Taiwan) [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2028
California [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	53,377								$ 53,377
California [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2026
California [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2038
Pennsylvania [Member]
Net operating loss carryforwards [Abstract]
Net operating loss carryforward	688,932								$ 688,932
Pennsylvania [Member] | Minimum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2019
Pennsylvania [Member] | Maximum [Member]
Net operating loss carryforwards [Abstract]
Expiration date NOL carryforward									Dec. 31, 2038
Research Tax Credit [Member] | California [Member]
Net operating loss carryforwards [Abstract]
Tax Credit Carryforward, Amount	14,856								$ 14,856
Available tax credit carryforwards [Abstract]
Tax Credit Carryforward	14,856								14,856
U.S. Foreign Tax Credit [Member]
Net operating loss carryforwards [Abstract]
Tax Credit Carryforward, Amount	57,852								$ 57,852
Expiration Date tax credit carryforward									Dec. 31, 2028
Available tax credit carryforwards [Abstract]
Tax Credit Carryforward	$ 57,852								$ 57,852