Income Taxes - Income From Operations Before Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended											12 Months Ended
	Dec. 28, 2013		Sep. 28, 2013		Jun. 29, 2013		Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
United States												$ 174,470	$ 206,785	$ 272,294
Foreign												(10,792)	0	0
Income from operations before income taxes	$ 23,078	[1]	$ 45,024	[1]	$ 42,753	[1]	$ 52,823	$ 44,908	$ 59,307	$ 57,829	$ 44,741	$ 163,678	$ 206,785	$ 272,294

[1] Included in net income are $0.8 million in transaction costs in the second quarter of fiscal 2013, $8.3 million in transaction costs in the third quarter of fiscal 2013 and $14.2 million in the fourth quarter relating to the Terra Transaction, Rothsay Acquisition and the VION Acquisition.