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INCOME TAXES INCOME TAXES - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 01, 2017	Sep. 23, 2016	Jun. 24, 2016	Mar. 25, 2016	Dec. 25, 2015	Sep. 25, 2015	Jun. 26, 2015	Mar. 27, 2015	Jan. 01, 2017	Dec. 25, 2015	Dec. 26, 2014
Income Tax Disclosure [Abstract]
Income tax expense (benefit) based on statutory rate									$ (7,119)	$ 33,745	$ 28,641
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation, Adjustments to Statutory Income Tax [Abstract]
State income taxes, net of federal benefit									1,373	4,175	3,213
Tax credits, net									(17,141)	(14,483)	(18,564)
Non-deductible goodwill impairment charge									17,694	0	0
Non-deductible/non-taxable items									630	2,456	1,983
Foreign taxes									993	(933)	1,037
Other, net									(1,519)	240	(141)
Total taxes on income (loss)	$ 4,822	$ 3,455	$ (13,978)	$ 612	$ 4,696	$ 12,796	$ 6,235	$ 1,473	$ (5,089)	$ 25,200	$ 16,169
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation, Adjustments to Statutory Income Tax Rate [Abstract]
Income tax expense (benefit) based on statutory rate									35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Percent [Abstract]
State income taxes, net of federal benefit									(6.80%)	4.30%	3.90%
Tax credits, net									84.30%	(15.00%)	(22.60%)
Non-deductible goodwill impairment charge									(87.00%)	0.00%	0.00%
Non-deductible/non-taxable items									(3.10%)	2.50%	2.40%
Foreign taxes									(4.80%)	(1.00%)	1.30%
Other, net									7.40%	0.30%	(0.20%)
Total taxes on income (loss)									25.00%	26.10%	19.80%

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