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Equity-Based Compensation - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Feb. 22, 2016
Jan. 05, 2016
Sep. 16, 2015
Jun. 10, 2015
Mar. 03, 2015
Jan. 05, 2015
Apr. 19, 2013
Apr. 18, 2013
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Apr. 24, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Recognized equity compensation expense                     $ 6,527,000 $ 2,349,000 $ 6,026,000  
Unrecognized equity compensation cost                     22,310,000      
Total fair value                     $ 2,450,000 2,410,000 4,820,000  
Weighted average grant date fair value of stock options                     $ 4.39      
Recognized equity compensation expense                     $ 6,527,000 $ 2,349,000 $ 6,026,000  
Cash dividends declared per share     $ 0.21 $ 0.21 $ 0.21 $ 0.21         $ 0.84 $ 0.62 $ 0.60  
Cash dividends record date     Sep. 29, 2015 Jun. 22, 2015 Mar. 13, 2015 Jan. 13, 2015                
Cash dividends payable date     Oct. 06, 2015 Jul. 01, 2015 Apr. 01, 2015 Jan. 22, 2015                
Initial Public Offering [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Offering price per share               $ 27.00           $ 27.00
Subsequent Events [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Cash dividends declared per share $ 0.21 $ 0.21                        
Cash dividends declared date Feb. 22, 2016 Jan. 05, 2016                        
Cash dividends record date Mar. 14, 2016 Jan. 15, 2016                        
Cash dividends payable date Apr. 01, 2016 Jan. 22, 2016                        
Vested Time Vesting Units Surrendered for Shares of Stock [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Incremental Fair Value                         $ 282,000  
Unvested Time Vesting Units Surrendered for Unvested Time Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Incremental Fair Value                         $ 220,000  
Common Stock [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Shares withheld from employees to satisfy minimum tax withholding obligation                     42,221 8,936 28,463  
Omnibus Incentive Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Common stock reserved for future issuance                     15,000,000      
Shares available for future issuance                     10,776,041      
Restricted stock granted to directors, officers and employees             494,557              
Initial public offering lock up period             180 days              
2015 Bonus Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Percentage of bonus payable by cash                     50.00%      
2016 Bonus Plan [Member] | Scenario, Forecast [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Percentage of bonus payable by cash                   50.00%        
2015 Long-Term Incentive Plan Below Threshold Performance [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting percentage, per year                     0.00%      
2015 Long-Term Incentive Plan Threshold Performance [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting percentage, per year                     50.00%      
2015 Long-Term Incentive Plan Target Performance [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting percentage, per year                     100.00%      
2015 Long-Term Incentive Plan At or Above Maximum Performance [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting percentage, per year                     200.00%      
Pre-IPO Incentive Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Incentive Plan terms                     Under the Pre-IPO Incentive Plan. The Employee Units which were granted were accounted for as equity awards and were divided into three tranches, Time-Vesting Units (“TVUs”), 2.25x Performance Vesting Units (“PVUs”) and 2.75x PVUs. There was no related cost to the employee upon vesting of the units.      
Grant date fair value measuring method                     The fair value of each Pre-IPO Incentive Plan Employee Unit originally granted prior to April 18, 2013 was estimated on the date of grant using a composite of the discounted cash flow model and the guideline public company approach to determine the underlying enterprise value.      
Units Surrendered for Shares Plan [Member] | Common Stock [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Shares provided for surrender of units, in shares               4,165,861            
Units Surrendered for Shares Plan [Member] | Common Stock [Member] | Class D Units and Vested TVUs Surrendered for Shares of Stock [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Shares provided for surrender of units, in shares               949,142            
Units Surrendered for Shares Plan [Member] | Common Stock [Member] | Unvested TVUs and PVUs Surrendered for Shares of Unvested Restricted Stock [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Shares provided for surrender of units, in shares               3,216,719            
2013 Grant Fair Value Assumptions [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Fair value assumptions, holding period                     2 years      
Fair value assumptions, risk free rate                     0.24%      
Fair value assumptions, volatility                     33.20%      
Fair value assumptions, dividend yield                     0.00%      
Time Vesting and Performance Vesting Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Weighted average grant date fair value                     $ 18.76 $ 24.59 $ 29.06  
Bonus Performance Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Weighted average grant date fair value                     $ 18.99      
Granted shares                     464,896      
Bonus Performance Restricted Shares [Member] | 2015 Bonus Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Recognized equity compensation expense                     $ 0      
Percentage of bonus payable by shares                     50.00%      
Recognized equity compensation expense                     $ 0      
Bonus Performance Restricted Shares [Member] | 2016 Bonus Plan [Member] | Scenario, Forecast [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Percentage of bonus payable by shares                   50.00%        
Long-Term Incentive Options [Member] | 2015 Long-Term Incentive Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting period                     4 years      
Vesting percentage, per year                     25.00%      
Long-Term Incentive Options, expiration period                     10 years      
Long-Term Incentive Time Restricted Shares [Member] | 2015 Long-Term Incentive Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting period                     4 years      
Vesting percentage, per year                     25.00%      
Long-Term Incentive Performance Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Weighted average grant date fair value                     $ 18.90      
Granted shares                     79,279      
Long-Term Incentive Performance Restricted Shares [Member] | 2015 Long-Term Incentive Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Unrecognized equity compensation cost                     $ 260,000      
Performance period                     3 years      
Performance period, beginning date                     Jan. 01, 2015      
Performance period, ending date                     Dec. 31, 2017      
Shares earned, percentage                     33.00%      
Awarded shares                     187,125      
Number of shares probable of vesting related to the first performance period                     18,709      
Long-Term Incentive Performance Restricted Shares [Member] | 2015 Long-Term Incentive Plan [Member] | First Performance Period [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Granted shares                     62,365      
Time-Vesting Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Weighted average grant date fair value                     $ 18.64      
Granted shares                     968,005      
Time-Vesting Restricted Shares [Member] | Other 2015 Omnibus Incentive Plan Awards [Member] | Interim Chief Executive Officer [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Weighted average grant date fair value           $ 16.50                
Granted shares           100,000                
Vesting period, description                     The earlier of the start date of a new Chief Executive Officer or June 30, 2015.      
Time-Vesting Restricted Shares [Member] | Other 2015 Omnibus Incentive Plan Awards [Member] | Board Members [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting period                     3 years      
Granted shares                     49,284      
2.25x Performance Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Recognized equity compensation expense                     $ 0 $ 0 $ 0  
Unrecognized equity compensation cost                     28,000,000      
Recognized equity compensation expense                     $ 0 0 0  
Return on investment                     2.25%      
Annualized effective compounded return rate                     20.00%      
Additional future funds to receive                     $ 960,000      
2.25x Performance Restricted Shares [Member] | Scenario, Forecast [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Unrecognized equity compensation cost                 $ 28,000,000          
Accumulated dividends on unvested performance restricted shares                 $ 3,400,000          
2.75x Performance Restricted Shares [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Recognized equity compensation expense                     0 0 0  
Unrecognized equity compensation cost                     15,000,000      
Recognized equity compensation expense                     $ 0 $ 0 $ 0  
Return on investment                     2.75%      
Annualized effective compounded return rate                     15.00%      
Additional future funds to receive                     $ 428,000,000      
TVUs [Member] | Units Surrendered for Shares Plan [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Fair value assumptions, holding period                     2 years      
Fair value assumptions, risk free rate                     0.24%      
Fair value assumptions, volatility                     37.60%      
Fair value assumptions, dividend yield                     0.00%      
TVUs [Member] | Pre-IPO Incentive Plan and 2013 Grant [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Vesting period                     5 years      
Vesting percentage, per year                     20.00%      
Performance Restricted Shares [Member] | Equity Plan Modifications [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Modified shares                     940,000      
Performance Restricted Shares [Member] | Modification Fair Value Assumptions [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Fair value assumptions, dividend yield                     0.00%      
Performance Restricted Shares [Member] | Modification Fair Value Assumptions [Member] | Minimum [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Fair value assumptions, holding period                     9 months      
Fair value assumptions, risk free rate                     0.33%      
Fair value assumptions, volatility                     33.00%      
Performance Restricted Shares [Member] | Modification Fair Value Assumptions [Member] | Maximum [Member]                            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Fair value assumptions, holding period                     1 year 6 months      
Fair value assumptions, risk free rate                     0.38%      
Fair value assumptions, volatility                     45.40%