INCENTIVE COMPENSATION (Schedule of Restricted Share and Restricted Stock Unit Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 25, 2016	Dec. 27, 2015	Dec. 28, 2014
Restricted Stock Awards (RSAs) [Member]
Number
Outstanding at beginning of year (in shares)	0	30	203
Granted (in shares)	0	0	0
Vested (in shares)	0	0	(173)
Forfeited (in shares)	0	(30)	0
Outstanding at end of year (in shares)	0	0	30
Weighted-Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 0.00	$ 8.72	$ 6.59
Granted (in dollars per share)	0.00	0.00	0.00
Vested (in dollars per share)	0.00	0.00	6.62
Forfeited (in dollars per share)	0.00	8.72	0.00
Outstanding at end of period (in dollars per share)	$ 0.00	$ 0.00	$ 8.72
Restricted Stock Units (RSUs) [Member]
Number
Outstanding at beginning of year (in shares)	774	1,120	729
Granted (in shares)	325	428	463
Vested (in shares)	0	(671)	0
Forfeited (in shares)	(193)	(103)	(72)
Outstanding at end of year (in shares)	906	774	1,120
Weighted-Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 18.78	$ 11.97	$ 8.81
Granted (in dollars per share)	24.35	21.00	16.70
Vested (in dollars per share)	0.00	8.81	0.00
Forfeited (in dollars per share)	24.51	18.90	10.34
Outstanding at end of period (in dollars per share)	$ 20.00	$ 18.78	$ 11.97