Net Income Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 30, 2013	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	May. 01, 2013
Schedule Of Earnings Per Share [Line Items]
Number of new common stock issued	45,000,000
Par value of common stock issued	$ 0.01
Exercise price of common stock	$ 16.67
Investment Warrants Expiration Date	Apr. 30, 2023
Successor [Member]
Schedule Of Earnings Per Share [Line Items]
Number of new common stock issued			45,044,222	45,005,932		45,000,000
Par value of common stock issued			$ 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
Warrant exercised			740	949	6,312
Stock Issued During Period, Shares, New Issues			236	949	2,524
Warrants outstanding			4,407,537
WarrantBuyBackAuthorizedDollars			$ 10,000
Warrants Purchased During Period Shares			631,600
Payments for Repurchase of Warrants		$ 0	$ 5,375	$ 0