Leases Operating Lease Rent Expense and Rent Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2014		Dec. 29, 2013		Dec. 30, 2012
Operating Leased Assets [Line Items]
Rental expense, Minimum rentals	$ 76,218		$ 68,445		$ 70,525
Rental expense, Contingent rentals	19,967		10,421		10,971
Total rental expense	96,185	[1]	78,866	[1]	81,496	[1]
Sublease income	46,743		16,924		13,317
Rental income, Minimum rentals	51,019		16,245		10,757
Rental income, Contingent rentals	17,745		11,162		11,086
Total rental income	$ 68,764		$ 27,407		$ 21,843

[1] Amounts exclude sublease income of $46,743, $16,924, and $13,317 recognized during 2014, 2013 and 2012, respectively.