Debt Obligations - Debt and Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2013		Dec. 30, 2012
Total debt and capital lease obligations
Total debt	$ 676,272		$ 690,055
Short-term capital lease obligations	47	[1]	123	[1]
Long-term capital lease obligations	6,711		6,697
Total capital lease obligations	6,758		6,820
Total debt and capital lease obligations	683,030		696,875
Option To Repurchase Headquarters Building 2019 [Member]
Total debt and capital lease obligations
Long-term debt	227,300		224,510
Senior Notes [Member] | Notes Due 2016 [Member]
Total debt and capital lease obligations
Long-term debt	204,924		221,523
Interest rate on debt	6.625%
Senior Notes [Member] | Notes Due 2015 [Member]
Total debt and capital lease obligations
Long-term debt	$ 244,048		$ 244,022
Interest rate on debt	5.00%

[1] Included in “Accrued expenses and other” in our Condensed Consolidated Balance Sheets.