Summary of Significant Accounting Policies - Summary of Components of Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Unrecognized pension benefit costs, net of tax	$ (5,597)	$ (7,615)
Unrealized loss on interest rate swap, net of tax	(1,447)	(1,691)
Currency translation adjustments	(5,355)	(11,228)
Accumulated other comprehensive income (loss), net of tax	$ (12,399)	$ (20,534)