Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Payroll and employee benefits	$ 58,801	$ 58,423
Taxes other than income taxes	97,445	104,755
Interest	162,506	119,785
Acquired sales contracts	0	3,852
Workers’ compensation	13,576	16,875
Asset retirement obligations	17,297	13,795
Other	8,971	11,965
Accrued Liabilities, Current, Not Subject To Compromise	358,596	329,450
Less: liabilities subject to compromise	(205,568)	0
Accrued Liabilities, Current	$ 153,028	$ 329,450