Fair Value Measurements and Financial Instruments (Tables)

3 Months Ended

Mar. 30, 2019

Fair Value Disclosures [Abstract]

Assets and liabilities measured at fair value on a recurring basis [Table Text Block]

Our assets and liabilities measured at fair value on a recurring basis at March 30, 2019 were as follows:

			Fair Value Measurements at March 30, 2019 Using:
Assets and Liabilities Recorded at Fair Value on a Recurring Basis	Total Carrying Value at March 30, 2019		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Assets invested for self-insurance, classified as other assets, noncurrent	$	10,302	$	10,302	$	—	$	—
Defined benefit pension plan assets	3,145		—		3,145		—
Liabilities:
Deferred compensation	$	2,746	$	—	$	2,746	$	—

Our assets and liabilities measured at fair value on a recurring basis at December 31, 2018 were as follows:

			Fair Value Measurements at December 31, 2018 Using:
Assets and Liabilities Recorded at Fair Value on a Recurring Basis	Total Carrying Value at December 31, 2018		Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Assets invested for self-insurance, classified as other assets, noncurrent	$	15,379	$	15,379	$	—	$	—
Defined benefit pension plan assets	3,758		—		3,758		—
Liabilities:
Deferred compensation	$	2,459	$	—	$	2,459	$	—

Financial instruments recorded at historical carrying value [Table Text Block]

Financial instruments classified as noncurrent liabilities and their carrying values and fair values were as follows:

	March 30, 2019				December 31, 2018
	Carrying Value		Fair Value		Carrying Value		Fair Value
Revolving credit facility, noncurrent	$	89,500	$	89,500	$	93,500	$	93,500
Senior unsecured notes, noncurrent	81,000		82,610		56,000		56,002
Term loans, noncurrent	6,568		6,926		6,662		6,868
Total	$	177,068	$	179,036	$	156,162	$	156,370