XML 124 R109.htm IDEA: XBRL DOCUMENT v3.20.4
Income Taxes - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Taxes [Line Items]          
Reconciliation of income taxes 35.00%     21.00% 35.00%
Unrecognized tax benefits that would impact effective tax rate   $ 80,000,000.0      
Unrecognized tax expense (benefits), interest and penalty expense (benefit) recognized   700,000 $ 3,000,000.0 $ 2,200,000  
Unrecognized tax benefits, accrued interest and penalties   17,600,000 16,100,000    
Deferred tax assets, net operating losses and other tax carryforwards   14,400,000 $ 22,400,000    
Deferred tax assets, net operating losses and other tax carryforwards   600,000      
Unremitted earnings of foreign subsidiaries   126,000,000      
Unrecognized deferred tax liabilities of Foreign Subsidiaries   7,000,000      
Foreign and State Tax [Member]          
Income Taxes [Line Items]          
Deferred tax liability for foreign and state taxes   7,200,000      
Minimum [Member]          
Income Taxes [Line Items]          
Reasonably possible decrease in unrecognized tax benefits   $ 4,000,000.0      
Deferred tax assets, remaining net operating losses and other tax carryforwards expiration period   2025      
Maximum [Member]          
Income Taxes [Line Items]          
Reasonably possible decrease in unrecognized tax benefits   $ 48,100,000