Income Taxes (Narrative) (Details) € in Thousands, $ in Thousands		1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 28, 2012 EUR (€)	Dec. 31, 2013 EUR (€)	Jan. 31, 2012 EUR (€)	Jun. 28, 2014 EUR (€)	Sep. 29, 2012 EUR (€)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Income Taxes [Line Items]
Percentage of earnings from continuing operations before income taxes attributable to the United States						43.00%
Reversal of uncertain tax positions						$ 13,471	$ 4,925
Valuation allowance against deferred tax asset						287,580	300,472
Change in the valuation allowance						(12,892)	(75,387)
Net operating loss carryforwards and tax credit						458,743	432,906
Net operating loss carryforwards in various foreign jurisdictions						401,999
Federal income taxes on earnings						1,680,000
Gross unrecognized tax benefits						51,037	49,599	$ 56,545
Unrecognized tax benefits that would impact effective tax rate						32,662
Interest and penalties						5,394	9,409
Accrued/(reversed) interest and penalties						(5,635)	$ (3,579)	$ 74
Expected decrease in unrecognized tax benefits within next twelve months						$ 10,273
UNITED STATES
Income Taxes [Line Items]
Effective income tax rate						39.80%	42.80%	32.60%
Non-US [Member]
Income Taxes [Line Items]
Effective income tax rate						0.70%	(3.10%)	(10.00%)
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards and tax credit						$ 56,745
Foreign Tax Authority [Member] | Belgium [Member]
Income Taxes [Line Items]
Interest income related to interest tax examination refund | €					€ 1,583
Foreign Tax Authority [Member] | Tax Year 2008 [Member] | Belgium [Member]
Income Taxes [Line Items]
Foreign tax assessment | €			€ 23,789	€ 30,131
Foreign Tax Authority [Member] | Tax Year 2005 [Member] | Belgium [Member]
Income Taxes [Line Items]
Foreign tax assessment | €	€ 46,135
Foreign Tax Authority [Member] | Tax Year 2009 [Member] | Belgium [Member]
Income Taxes [Line Items]
Foreign tax assessment | €	€ 35,567
Foreign Tax Authority [Member] | Tax Year 2006 [Member] | Belgium [Member]
Income Taxes [Line Items]
Foreign tax assessment | €		€ 38,817
Foreign Tax Authority [Member] | Tax Year 2007 [Member] | Belgium [Member]
Income Taxes [Line Items]
Foreign tax assessment | €		39,635
Foreign Tax Authority [Member] | Tax Year 2010 [Member] | Belgium [Member]
Income Taxes [Line Items]
Foreign tax assessment | €		€ 43,117
Foreign Subsidiary and State Net Operating Losses and Tax Credits [Member]
Income Taxes [Line Items]
Change in the valuation allowance						(24,718)	$ (39,243)
Disposal Of A Subsidiary [Member]
Income Taxes [Line Items]
Change in the valuation allowance							$ (61,148)
State Deferred Tax Assets [Member]
Income Taxes [Line Items]
Valuation allowance against deferred tax asset						35,490
Operating Loss Carryforward, Foreign Jurisdiction [Member]
Income Taxes [Line Items]
Valuation allowance against deferred tax asset						218,577
IVC Group [Member]
Income Taxes [Line Items]
Reversal of uncertain tax positions						$ 11,180