Other Investments and Assets - Summary of Other Investments and Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	[1]
Investments All Other Investments [Abstract]
Cash surrender value of life insurance	$ 22,080	$ 21,970
Self-insured liability receivable	5,979	5,979
Workers’ compensation insurance security deposits	4,250	4,250
Other mutual funds	1,995	2,192
Other	2,993	3,240
Other investments and assets	$ 37,297	$ 37,631

[1] In accordance with ASU 2015-03, unamortized debt issuance costs are reflected as a direct deduction from the carrying amount of the related debt. The Company adopted the new guidance retrospectively to all prior periods presented in the condensed consolidated financial statements. As a result, $1.6 million of unamortized debt issuance costs were reclassified from other investments and assets to a reduction of long-term debt on the December 31, 2015 condensed consolidated balance sheet.