Stock-Based Awards - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 25, 2016	Dec. 27, 2015	Dec. 28, 2014
Options (number of shares):
Exercised (shares)	(114,652)	(341,362)	(169,286)
Weighted Average Exercise Price (in dollars per share):
Total intrinsic value	$ 700	$ 2,700	$ 1,500
Employee Stock Option [Member]
Options (number of shares):
Options outstanding at beginning of year (shares)	6,390,000
Granted (shares)	0	0	0
Exercised (shares)	(115,000)
Forfeited/Expired (shares)	(1,757,000)
Options outstanding at end of period (shares)	4,518,000	6,390,000
Options expected to vest at end of period (shares)	4,518,000
Options exercisable at end of period (shares)	4,518,000
Weighted Average Exercise Price (in dollars per share):
Options outstanding at beginning of year (in dollars per share)	$ 16
Granted (in dollars per share)	0
Exercised (in dollars per share)	7
Forfeited/Expired (in dollars per share)	24
Options outstanding at end of period (in dollars per share)	14	$ 16
Options expected to vest at end of period	14
Options exercisable at end of period	$ 14
Outstanding weighted average remaining contractual term, beginning of period	3 years	3 years
Outstanding weighted average remaining contractual term, end of period	3 years	3 years
Outstanding aggregate intrinsic value, beginning of period	$ 13,938
Outstanding aggregate intrinsic value, end of period	$ 12,797	$ 13,938
Options expected to vest weighted average remaining contractual term	3 years
Options exercisable weighted average remaining contractual term	3 years
Options expected to vest aggregate intrinsic value	$ 12,797
Options exercisable aggregate intrinsic value	$ 12,797