INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013	Dec. 26, 2010	Dec. 27, 2009
Operating Loss Carryforwards [Line Items]
Effective tax rate, continuing operations	34.90%	35.50%	4.20%
Increase (decrease) in valuation allowance	$ (1,200)
Valuation allowance	7,921	$ 9,150
Net operating loss carry forwards					$ 547,700
Claim for refund					$ 169,700
Refunds received from Internal Revenue Service				$ 122,600
Unrecognized tax benefits	17,110	17,396	$ 17,117
Amount of tax benefits that, if recognized, would reduce effective tax rate	8,500
Liability for interest and penalties	9,400
Decrease in accrued interest and penalty amounts related to uncertain tax positions	800
Tax benefit related to share-based compensation	6,474	$ 458	$ 7,771
United States [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance	1,300
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Valuation allowance	6,600
Net operating loss carry forwards	$ 55,800
Net operating loss carry forwards, expiration date	Jan. 01, 2016
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry forwards	$ 130,700
Net operating loss carry forwards, expiration date	Jan. 01, 2016
Tax credit carry forwards	$ 2,600
Tax credit carry forwards, expiration date	Jan. 01, 2016