Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Current tax expense (benefit):
Federal	$ (2,668)	$ 8,008	$ 10,726
State	(708)	3,879	1,825
Foreign	960	1,008	1,256
Total current tax expense	(2,416)	12,895	13,807
Deferred tax expense (benefit):
Federal	(72,829)	(11,848)	(14,022)
State	(137)	(3,274)	(2,203)
Foreign	1,091	(399)	(523)
Total deferred tax expense (benefit)	(71,875)	(15,521)	(16,748)
Income tax expense (benefit)	$ (74,291)	$ (2,626)	$ (2,941)