Accrued Liabilities and Other - Schedule of Accrued Liabilities and Other (Detail) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accrued Liabilities and Other Liabilities [Abstract]
Prepaid advances from joint interest owners		$ 49,917	$ 115,687
Accrued compensation		40,060	39,848
Accrued production taxes, ad valorem taxes and other non-income taxes		21,678	36,550
Accrued interest		62,058	60,861
Current portion of asset retirement obligations	[1]	1,658	1,246	$ 1,434
Other		1,576	4,965
Accrued liabilities and other		$ 176,947	$ 259,157

[1] Balance is included in the caption "Accrued liabilities and other" in the consolidated balance sheets.