Debt and Other Long Term Obligations (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Short term debt
6.125% Senior Notes due 2024	$ 850,000	$ 850,000
5.75% Senior Notes due 2018	450,000	450,000
Senior Notes issued by Ultra Resources Inc	1,460,000	1,460,000
Credit Agreement	999,000	999,000
Current portion of long term debt	3,759,000	3,759,000
Less: Liabilities subject to compromise	(3,759,000)	(3,759,000)
Total current portion of long term debt not subject to compromise	0	0
Other long-term obligations
Other long-term obligations	$ 172,959	$ 177,088