Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Various insurance and workers’ compensation receivables	$ 12,143	$ 9,595
Prepaid accounts	11,345	12,532
Inventory and supplies	9,371	7,875
Fair value of derivatives	6,886	2,283
Marketable securities - (Deferred compensation plan)	4,895	3,072
Other receivables	7,528	8,770
Utility, workers’ compensation escrow and lease deposits	4,222	1,726
Deferred financing costs	2,767	5,437
Income taxes receivable	885	6,978
Deferred registration statement costs	912	0
Deferred tax assets	418	391
Other assets	$ 61,372	$ 58,659