Impairments (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Details of Impairment of Long-Lived Assets Held and Used by Asset

The following table summarizes impairment charges recorded during the periods presented:

	Successor				Predecessor
	Year Ended		September 13 Through		January 1 Through		Year Ended
	December 31,		December 31,		September 12,		December 31,
	2017		2016		2016		2015
Oil and gas properties	$	—	$	—	$	—	$	1,396,340
Other – tubular inventory and well materials	—		—		—		1,084
	$	—	$	—	$	—	$	1,397,424

Fair Value Measurements, Nonrecurring

The following table summarizes the aggregate fair values of the assets described below, by asset category and the classification of inputs within the fair value measurement hierarchy, at the respective dates of impairment:

	Fair Value Measurement		Level 1		Level 2		Level 3
Year Ended December 31, 2015 (Predecessor)
Long-lived assets held for use	$	311,886	$	—	$	—	$	311,886