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Employee Benefit Plans - Additional Information (Detail) - USD ($)
9 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage matched by Company on first 2% contributed by employee   100.00%    
Percentage matched by Company on next 2% contributed by employee   50.00%    
Percentage matched by Company on first 4% contributed by employee   25.00%    
Unrecognized compensation expense related to nonvested restricted stock awards   $ 3,000,000 $ 3,100,000  
Weighted average term of nonvested restricted stock awards     11 months 10 days  
Share Granted   67,047 200,200  
Shares vested   75,283 12,500  
Number of shares available for grant (in shares)   349,411,000 408,200  
Deferred Compensation Plans        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Contributions made to participant's account $ 0     $ 0
2014 Omnibus Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock shares authorized   600,000    
Number of shares available for grant (in shares)   349,411    
Restricted stock expense   $ 2,200,000 $ 1,000,000  
2014 Omnibus Incentive Plan | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock vesting period   1 year    
2014 Omnibus Incentive Plan | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock vesting period   3 years    
Defined Contribution Plans        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Contribution plan eligibility period   60 days    
Employees contribution to defined contribution plan   100.00%    
Description of defined contribution pension and other postretirement plans     The Company previously matched the first 2% contributed with a dollar-for-dollar match and the next 2% of employee contributions at a rate of $.50 for each dollar. These amounts were increased beginning in January 2014 to the first 2% contributed with a dollar-for-dollar match, the next 2% matched at a rate of $0.50 for each dollar and the next 4% matched at $0.25 for each dollar.  
Defined contribution plan employer discretionary contribution amount $ 579,000 $ 1,100,000 $ 992,000