CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		1 Months Ended	8 Months Ended
		Sep. 30, 2016	Sep. 12, 2016	Dec. 31, 2015
Common Stock Issued in Exchange for Liabilities		$ 0	$ 140,952
Current assets
Cash and cash equivalents		13,994	31,414	$ 11,955
Accounts receivable, net of allowance for doubtful accounts		32,137		47,965
Derivative assets		446		97,956
Other current assets		3,518		7,104
Total current assets		50,095		164,980
Property and equipment, net		251,200		344,395
Other assets		5,571		8,350
Total assets		306,866		517,725
Current liabilities
Accounts payable and accrued liabilities		45,432		103,525
Derivative Liability, Current		3,888
Long-term Debt, Current Maturities		0		1,224,383
Total current liabilities		49,320		1,327,908
Derivative Liability, Noncurrent		11,291		0
Long-term Debt, Excluding Current Maturities		54,350		0
Other liabilities		4,451		104,938
Commitments and contingencies (Note 13)
Shareholders’ equity (deficit):
Predecessor preferred stock of $100 par value – 100,000 shares authorized; Series A – 3,915 shares issued as of December 31, 2015 and Series B – 27,551 issued as of December 31, 2015, each with a redemption value of $10,000 per share		0
Postconfirmation, Stockholders' Equity			190,895
Predecessor common stock of $0.01 par value – 228,000,000 shares authorized; 81,252,676 shares issued as of December 31, 2015		150	0
Retained Earnings (Accumulated Deficit)		(3,441)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		187,454		(915,121)
Other Deferred Compensation		0
Accumulated Other Comprehensive Income (Loss), Net of Tax		0
Treasury Stock, Value		0
Total shareholders’ equity (deficit)		187,454		(915,121)
Total liabilities and shareholders’ equity (deficit)		306,866		517,725
Predecessor [Member]
Shareholders’ equity (deficit):
Predecessor paid-in capital		0
Preferred stock
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity			0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		0		3,146
Common stock
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity			150
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		150		628
Retained Earnings [Member]
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity			0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		(3,441)	0	(2,130,271)
Treasury Stock [Member]
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity			0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		0		3,574
Additional Paid-in Capital [Member]
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity			190,745
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		190,745		1,211,088
Deferred Compensation, Share-based Payments [Member]
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity			0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		0		3,440
AOCI Attributable to Parent [Member]
Shareholders’ equity (deficit):
Postconfirmation, Stockholders' Equity	[1]		$ 0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		$ 0		$ 422

[1] Accumulated other comprehensive income (“AOCI”) is entirely attributable to our defined benefit pension and postretirement health care plans. The changes in the balance of AOCI for the period January 1, 2016 through September 12, 2016, represent reclassifications from AOCI to net periodic benefit expense, a component of “General and administrative expenses,” of $(38).