Fair Value Measurements - Assets and Liabilities Recorded at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tangible Asset Impairment Charges	$ 268,000
Fair Value Based on Significant Other Observable Inputs (Level 2)
Assets:
Cash surrender value of life insurance policies		$ 32,209	$ 32,799
Cash flow swaps and interest rate caps designated as hedges		88	97
Total assets		32,297	32,896
Liabilities:
Deferred compensation plan		17,934	17,890
Total liabilities		17,934	17,890
Fair Value Based on Significant Other Observable Inputs (Level 2) | Other assets
Assets:
Cash flow swaps and interest rate caps designated as hedges		$ 100
Fair Value Based on Significant Other Observable Inputs (Level 2) | Other accrued liabilities
Liabilities:
Cash flow swaps and interest rate caps designated as hedges			0
Fair Value Based on Significant Other Observable Inputs (Level 2) | Other long-term liabilities
Liabilities:
Cash flow swaps and interest rate caps designated as hedges			$ 0