Liabilities Subject to Compromise (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Debt	$ 5,067,938	$ 0
Accrued expenses and current liabilities	213,667
Accounts payable	106,590
Noncurrent liabilities	93,709
Accrued pension benefits	5,422
Liabilities Subject to Compromise	5,487,326	0
Debt issuance costs	$ (64,857)	$ (64,857)