Annual report pursuant to Section 13 and 15(d)

Impairments (Details)

v3.6.0.2
Impairments (Details) - USD ($)
$ in Thousands
3 Months Ended 4 Months Ended 8 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2016
Sep. 12, 2016
Dec. 31, 2015
Dec. 31, 2014
Impaired Long-Lived Assets Held and Used [Line Items]          
Impairments   $ 0 $ 0 $ 1,397,424 $ 791,809
Impairment of Long-Lived Assets Held-for-use   0 0 1,396,340 791,809
Other Asset Impairment Charges   $ 0 $ 0 1,084 0
Eagle Ford Shale, Lavaca County [Member]          
Impaired Long-Lived Assets Held and Used [Line Items]          
Impairment of Long-Lived Assets Held-for-use       1,400,000  
East Texas, Granite Wash and Marcellus regions          
Impaired Long-Lived Assets Held and Used [Line Items]          
Impairment of Long-Lived Assets Held-for-use         667,800
Mid-Continent region          
Impaired Long-Lived Assets Held and Used [Line Items]          
Impairment of Oil and Gas Properties         6,100
Selma Chalk          
Impaired Long-Lived Assets Held and Used [Line Items]          
Impairment of Oil and Gas Properties $ 117,900       $ 117,900
Tubular Goods          
Impaired Long-Lived Assets Held and Used [Line Items]          
Other Asset Impairment Charges       1,100  
Fair Value, Measurements, Nonrecurring          
Impaired Long-Lived Assets Held and Used [Line Items]          
Impairment of Long-Lived Assets Held-for-use       $ 312,000