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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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