Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Payroll and employee benefits	$ 58,855	$ 58,423
Taxes other than income taxes	100,737	104,755
Interest	162,895	119,785
Acquired sales contracts	0	3,852
Workers’ compensation	13,639	16,875
Asset retirement obligations	17,290	13,795
Other	8,617	11,965
Accrued Liabilities, Current, Not Subject To Compromise	362,033	329,450
Less: liabilities subject to compromise	(138,253)	0
Accrued Liabilities, Current	$ 223,780	$ 329,450