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Income Taxes - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2016
Income Tax Reconciliation [Line Items]        
Effective income tax rate   27.00% (334.00%)  
U.S.federal statutory tax rate   35.00%    
Deferred tax assets noncurrent $ 12,704,000 $ 12,746,000    
Deferred tax liabilities noncurrent 2,467,000 2,602,000    
Net change in valuation allowance from prior year   0    
Unrecognized tax benefits   200,000    
Decrease in unrecognized tax benefits within next nine months   $ 200,000    
Adjustments for New Accounting Pronouncement [Member]        
Income Tax Reconciliation [Line Items]        
Increase (decrease) in deferred tax assets 7,400,000      
Increase (decrease) in deferred tax liabilities (1,000,000)      
Scenario, Forecast [Member]        
Income Tax Reconciliation [Line Items]        
Effective income tax rate       30.00%
Restatement Adjustment [Member] | Adjustments for New Accounting Pronouncement [Member]        
Income Tax Reconciliation [Line Items]        
Deferred tax assets current (8,600,000)      
Deferred tax assets noncurrent 8,600,000      
Deferred tax liabilities current (200,000)      
Deferred tax liabilities noncurrent $ 200,000