Debt Obligations - Debt & Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2014		Dec. 29, 2013		Dec. 31, 2005	Nov. 30, 2010
Debt Instrument [Line Items]
Short-term capital lease obligations	$ 0	[1]	$ 21	[1]
Total current portion of debt and capital lease obligations	223,662		21
Long-term capital lease obligations	6,736		6,715
Long-term debt and capital lease obligations	426,458		684,142
Total debt and capital lease obligations	650,120		684,163
2015	223,669
2016	189,170
2017	0
2018	0
2019	250,000
Thereafter	0
Total face amount of maturities	662,839
Less: Unamortized debt costs and discount	(19,455)
Carrying value of debt	643,384
Notes Due 2015 [Member]
Debt Instrument [Line Items]
Interest rate on debt	5.00%				5.00%
Long-term debt	223,662		244,057
Less: Unamortized debt costs and discount	(7)		(43)
Notes Due 2016 [Member]
Debt Instrument [Line Items]
Interest rate on debt	6.625%					6.625%
Long-term debt	187,604		205,111
Less: Unamortized debt costs and discount	(1,566)		(2,484)
Option To Repurchase Headquarters Building 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	232,118		228,259
Less: Unamortized debt costs and discount	$ (17,882)		$ (21,741)

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