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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Operating Loss Carryforwards [Line Items]      
Statutory tax rate 34.00% 34.00%  
Expected tax rate 42.00% 28.00%  
Effective tax rate   39.00%  
Foreign tax credit carryforwards expire amount     $ 7,027
U.S. foreign tax credit carryforwards expiration year, start     2023
U.S. foreign tax credit carryforwards expiration year, end     2026
Deferred tax assets     $ 16,655
Deferred tax assets, valuation allowance     6,192
NOL Carryforward [Member] | Foreign Tax Authority [Member]      
Operating Loss Carryforwards [Line Items]      
Net operating loss (NOL) carryforwards     58,110
Other Carryforwards [Member] | Foreign Tax Authority [Member]      
Operating Loss Carryforwards [Line Items]      
Other deductible carryforwards     $ 16,817