Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 29, 2013
Accumulated Other Comprehensive Income Rollforward [Roll Forward]
Balance as of December 31, 2012	$ 159,733
Current period other comprehensive income (loss) before reclassifications	(109,927)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Balance as of June 29, 2013	49,806
Foreign currency translation adjustments
Accumulated Other Comprehensive Income Rollforward [Roll Forward]
Balance as of December 31, 2012	160,661
Current period other comprehensive income (loss) before reclassifications	(110,134)
Amounts reclassified from accumulated other comprehensive income (loss)	0
Balance as of June 29, 2013	50,527
Pensions
Accumulated Other Comprehensive Income Rollforward [Roll Forward]
Balance as of December 31, 2012	(928)	[1]
Current period other comprehensive income (loss) before reclassifications	207	[1]
Amounts reclassified from accumulated other comprehensive income (loss)	0	[1]
Balance as of June 29, 2013	$ (721)	[1]

[1] This accumulated other comprehensive income (loss) component is included in the computation of net periodic pension cost (refer to Note 11 to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2012).