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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Operating Loss Carryforwards [Line Items]        
Expected tax rate 28.00% 14.00%    
Statutory tax rate 34.00%      
Effective tax rate 39.00%      
Foreign tax credit carryforwards expire amount       $ 3,309
U.S. foreign tax credit carryforwards expiration 2023      
Scenario, Forecast [Member]        
Operating Loss Carryforwards [Line Items]        
Effective tax rate     31.00%  
NOL Carryforward [Member] | Internal Revenue Service (IRS) [Member]        
Operating Loss Carryforwards [Line Items]        
Net operating loss (NOL) carryforwards       $ 4,853
NOL carryforwards expiration year, start       2019
NOL carryforwards expiration year, end       2027
NOL carryforwards, valuation allowances       $ 133
NOL Carryforward [Member] | Canada Revenue Agency [Member]        
Operating Loss Carryforwards [Line Items]        
Net operating loss (NOL) carryforwards       $ 28,691
NOL carryforwards expiration year, start       2027
NOL carryforwards expiration year, end       2035
NOL carryforwards, valuation allowances       $ 7,379
Other Carryforwards [Member] | Canada Revenue Agency [Member]        
Operating Loss Carryforwards [Line Items]        
Other deductible carryforwards       21,682
Other deductible carryforwards, valuation allowances       4,184
Foreign Tax Authority [Member]        
Operating Loss Carryforwards [Line Items]        
Deferred tax assets, valuation allowance       2,023
Foreign Tax Authority [Member] | NOL Carryforward [Member]        
Operating Loss Carryforwards [Line Items]        
Net operating loss (NOL) carryforwards       3,850
Foreign Tax Authority [Member] | Other Carryforwards [Member]        
Operating Loss Carryforwards [Line Items]        
Other deductible carryforwards       $ 2,846
Other deductible carryforwards expiration year, start       2016
Other deductible carryforwards expiration year, end       2021