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Net Income Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		4 Months Ended	21 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Apr. 30, 2013	Mar. 31, 2017	Dec. 31, 2016	Nov. 02, 2016	Jun. 30, 2015	May 01, 2013
Schedule Of Earnings Per Share [Line Items]
Warrants Repurchased Average Cost per Warrant				$ 8.21
Investment Warrants Expiration Date			Apr. 30, 2023
RemainingWarrantBuyBackAuthorizedDollars	$ 11,939			$ 11,939
Successor [Member]
Schedule Of Earnings Per Share [Line Items]
Number of new common stock issued	45,275,982			45,275,982	45,194,954			45,000,000
Warrants Purchased During Period Shares	0
Warrants Purchased During Period Dollars	$ 0
Par value of common stock issued	$ 0.01			$ 0.01	$ 0.01			$ 0.01
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			5,047,138					5,047,138
Exercise price of common stock								$ 16.67
Common stock shares issued	0	0
First Warrant Buyback Authorization Dollars							$ 10,000
Warrant exercised	0	0
Warrants outstanding	4,053,670			4,053,670
SecondWarrantBuyBackAuthorizedDollars						$ 10,000
Warrants Purchased Shares				985,331
Payments for Repurchase of Warrants				$ 8,092
Employee Stock Option [Member] | Successor [Member]
Schedule Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	126,667	176,668
Warrants [Member] | Successor [Member]
Schedule Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	4,053,670	4,407,537
Restricted Stock Units (RSUs) [Member] | Successor [Member]
Schedule Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	94,204	51,992
Performance Shares [Member] | Successor [Member]
Schedule Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	342,456	263,988

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