Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 29, 2013
Cumulative Translation Adjustment, Net of Tax, Period Increase (Decrease)	$ 88,300
Net Income	23,944	$ 8,803	$ 22,824
Foreign currency translation gain (loss)	(16,810)	(13,369)	(521)
Change in fair value of derivatives	(7,189)	(7,598)		$ 0
Tax benefit	2,665	2,833		$ 0
Change in unrecognized gains (losses) on derivative instruments, net of tax	(4,524)	(4,765)	0
Actuarial gains (losses) on pension obligations, net of curtailments and amortization	1,807	(4,686)	4,477
Tax (provision) benefit	(761)	1,758	(1,705)
Pension changes, net of tax	1,046	(2,928)	2,772
Other comprehensive income (loss), net of tax	(20,288)	(21,062)	2,251
Comprehensive income (loss)	$ 3,656	$ (12,259)	$ 25,075