Valuation and Qualifying Accounts (Notes)

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

	Column B		Column C					Column D			Column E
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to other accounts			Deductions			Balance at End of Period
Year Ended December 31, 2017
Deferred income tax valuation allowance	$	—	$	—	$	—		$	—		$	—
Year Ended January 1, 2017
Deferred income tax valuation allowance	30,374		—		—			(30,374		)	—
Year Ended January 3, 2016
Deferred income tax valuation allowance	27,423		2,959		(8		)	—			30,374