XML 71 R55.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Taxes [Line Items]          
U.S. federal statutory rate   21.00% 35.00% 35.00%  
Percentage of income attributable to wholly-owned operations and investments for which income tax expense and effective tax rate calculated   100.00%      
Valuation allowance $ 0 $ 0 $ 0    
Gross unrecognized tax benefits 4,902 4,902 4,225 $ 3,695 $ 3,513
Unrecognized tax benefits that, if recognized, would affect the effective tax rate 3,997 3,997 3,457    
Estimated accrued interest and penalties resulting from unrecognized tax benefits 755 755 540    
Foreign subsidiaries earnings 93,000 93,000      
Provisional net income tax benefit     $ 9,955    
Measurement period estimated net income tax benefit   $ 1,819      
Total net income tax benefit attributable to passage of the TCJA 11,774        
Minimum          
Income Taxes [Line Items]          
State and other net operating loss carry forwards expiration date   2019      
Maximum          
Income Taxes [Line Items]          
State and other net operating loss carry forwards expiration date   2038      
State and other          
Income Taxes [Line Items]          
Net operating loss carry forwards 8,263 $ 8,263      
Federal          
Income Taxes [Line Items]          
Net operating loss carry forwards $ 0 $ 0