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Defined Contribution Plans - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended 8 Months Ended 12 Months Ended
Jun. 30, 2016
Mar. 31, 2017
Mar. 31, 2016
Sep. 09, 2016
Dec. 31, 2015
Defined Contribution Plan Disclosure [Line Items]          
Annual deferral limit     $ 18,000    
Savings 401(k) Plan          
Defined Contribution Plan Disclosure [Line Items]          
401(k) Employer matching contribution, percent match, first 3%       100.00%  
401(k) Employer matching contribution, percent match, remaining 2%       50.00%  
Employer-matching contribution (percent)         50.00%
Employer matching contribution, percent of employee's gross pay         6.00%
Service period (in years)   3 years      
Contributions of eligible employee pretax salary (percent) (up to)   100.00%      
Annual deferral limit   $ 18,000      
Amount of employer contributions during period   300,000 $ 1,000,000    
Non-Qualified Deferred Compensation Plan          
Defined Contribution Plan Disclosure [Line Items]          
Employer-matching contribution (percent) 50.00%        
Employer matching contribution, percent of employee's gross pay 6.00%        
Plan vesting period (in years) 3 years        
Rabbi trust assets   $ 300,000