Liabilities Subject to Compromise (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Debt	$ 5,063,095	$ 0
Accrued expenses and current liabilities	205,568
Accounts payable	100,047
Noncurrent liabilities	56,114
Accrued pension benefits	5,632
Liabilities Subject to Compromise	5,430,456	0
Debt issuance costs	$ 64,857	$ 64,857