XML 79 R65.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes - Additional Information (Detail) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Reconciliation [Line Items]      
Foreign net operating loss carryforwards expiration period start year 2024    
Foreign net operating loss carryforwards expiration period end year 2026    
State net operating loss carryforwards expiration period 2036    
Valuation allowance $ 3,805,000 $ 5,209,000  
Net decrease in valuation allowance from the prior year 1,400,000    
Deferred tax liability not established by the company 88,500,000    
Income taxes paid, net of refunds 6,900,000 12,300,000 $ 7,700,000
Recognized accrued interest and penalties reversed 100,000 100,000 100,000
Payment of interest accrued 0 100,000 600,000
Accrued penalties payment 0 200,000 200,000
Unrecognized tax benefits that would impact effective tax rate 0 200,000 200,000
Reversal of unrecognized tax benefits for the expiration of statutes of limitation 178,000 $ 0 $ 0
Foreign Country [Member]      
Income Tax Reconciliation [Line Items]      
Net operating loss carryforwards 10,800,000    
Net operating loss carryforwards, definite 800,000    
Net operating loss carryforward, indefinite 10,000,000    
State [Member]      
Income Tax Reconciliation [Line Items]      
Net operating loss, tax benefits $ 200,000