Derivative Financial Instruments (Tables)

3 Months Ended

Apr. 01, 2018

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Summary of Fair Value of Derivative Instruments

	Thirteen Weeks Ended April 1, 2018			Fiscal Year Ended December 31, 2017
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Interest rate swaps	Other Current Assets and Other Assets	$	3,415	Other Accrued Liabilities and Long-term Liabilities	$	1,064

Summary of Gains and Losses of Derivative Instruments

	Thirteen Weeks Ended
	April 1, 2018		April 2, 2017
Consolidated Statements of Income Classification
Interest expense	$	132	$	—