Equity and Earnings (Loss) Per Share - Additional Information (Detail) $ / shares in Units, $ in Thousands		11 Months Ended	12 Months Ended
	Feb. 09, 2018 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Jun. 29, 2015 shares
Class of Stock [Line Items]
Common stock, shares issued | shares		5,328,417	37,373,616
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, total value | $		$ 53	$ 374
Preferred stock, shares issued | shares		91,408	0
Preferred stock, shares outstanding | shares		91,408	0
Preferred stock, total value | $		$ 1	$ 0
Preferred share repurchase rights trigger percentage		4.99%
Period to file initial shelf registration statement	60 days
Percentage of registrable securities required to call for Shelf Registration	40.00%
Period following Effective Date during which Shelf Registration shall remain effective	3 years
Percentage of beneficial holders of common stock required for Demand Registration	10.00%
Aggregate gross proceeds from sale threshold | $	$ 25,000
Period preceding request that Registration Statement shall have been declared effective	90 days
Aggregate restricted net assets of subsidiaries | $		$ 381,800
Convertible Notes [Member]
Class of Stock [Line Items]
Stock price threshold for antidilution			$ 58.80
Successor [Member]
Class of Stock [Line Items]
Common stock, shares issued | shares	4,252,500
Common stock, par value (in dollars per share)	$ 0.01
Common stock, total value | $	$ 43,600
Preferred stock, shares issued | shares	100,000
Preferred stock, total value | $	$ 123,200
Preferred shares convert into shares of common stock | shares	11,497,500
Conversion multiple | shares	114.9750
Threshold period before conversion	1 year
Redemption price percentage	150.00%
Conversion price per share (in dollars per share)	$ 8.6975
Threshold number of trading days	45 days
Threshold number of consecutive trading days	60 days
Threshold number of last trading days	20 days
Consideration paid or payable per share of common stock upon change in control	$ 8.6975
Rate at which interest will accumulate for liquidation preference	7.00%
Series A Warrants [Member]
Class of Stock [Line Items]
Initial trading price	$ 1.68
Estimated fair value per warrant	1.68
Stock price threshold for antidilution - warrants		$ 20.63
Series B Warrants [Member]
Class of Stock [Line Items]
Initial trading price	0.94
Estimated fair value per warrant	$ 0.94
Stock price threshold for antidilution - warrants		$ 28.25
Equity Incentive Plan [Member] | Successor [Member]
Class of Stock [Line Items]
Shares of common stock reserved for issuance | shares	3,193,750
Common Stock | Successor [Member]
Class of Stock [Line Items]
Initial trading price	$ 10.25
Junior Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock purchase rights per share of common stock				1
Fully paid non-assessable shares holder is entitled to purchase | shares				0.001
Common Stock [Member] | Series A Warrants [Member]
Class of Stock [Line Items]
Warrants to purchase shares of common stock | shares	7,245,000
Exercise price of warrants	$ 20.63
Common Stock [Member] | Series B Warrants [Member]
Class of Stock [Line Items]
Warrants to purchase shares of common stock | shares	5,748,750
Exercise price of warrants	$ 28.25