Fair Value Measurements Non-Recurring Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015	Jan. 03, 2016
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Impairment of Long-Lived Assets Held-for-use			$ 12,768		$ 22,346
Impairment of Long-Lived Assets to be Disposed of			223		2,655
Impairment of long-lived assets	$ 361	$ 1,513	12,991	$ 13,468	25,001
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Assets Held and Used, Long Lived, Fair Value Disclosure	5,471		5,471		10,244
Assets Held-for-sale, Long Lived, Fair Value Disclosure	1,642		1,642		4,328
Total	7,113		7,113		14,572
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Assets Held and Used, Long Lived, Fair Value Disclosure	0		0		0
Assets Held-for-sale, Long Lived, Fair Value Disclosure	0		0		0
Total	0		0		0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Assets Held and Used, Long Lived, Fair Value Disclosure	0		0		0
Assets Held-for-sale, Long Lived, Fair Value Disclosure	0		0		0
Total	0		0		0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Assets Held and Used, Long Lived, Fair Value Disclosure	5,471		5,471		10,244
Assets Held-for-sale, Long Lived, Fair Value Disclosure	1,642		1,642		4,328
Total	$ 7,113		$ 7,113		$ 14,572