Geographic Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 501,951	$ 512,489	$ 523,427	$ 523,196	$ 592,405	$ 640,779	$ 650,544	$ 603,682	$ 2,061,063	$ 2,487,410	$ 2,505,242
Properties	1,271,238				1,165,487				1,271,238	1,165,487	1,250,338
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									1,796,725	2,213,875	2,231,270
Properties	1,232,613				1,108,219				1,232,613	1,108,219	1,186,879
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									247,792	255,216	257,750
Properties	38,538				57,232				38,538	57,232	63,412
Other International
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									16,546	18,319	16,222
Properties	$ 87				$ 36				$ 87	$ 36	$ 47