Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.20.2
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2019
Sep. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2018
Schedule Of Income Taxes [Line Items]          
U.S. federal and state statutory rate   25.00%      
Cash and cash equivalents   $ 1,294,222 $ 824,876 $ 824,004 $ 872,237
Cumulative total earnings   299,600      
Cumulative income tax expense $ 1,500        
Non-US [Member]          
Schedule Of Income Taxes [Line Items]          
Cash and cash equivalents   $ 596,900      
Non-US [Member] | Geographic concentration risk [Member] | Cash and Cash Equivalents Geographical Area [Member]          
Schedule Of Income Taxes [Line Items]          
Percentage of cash and cash equivalents   46.00%      
Non-US [Member] | Funds Available For Repatriation [Member]          
Schedule Of Income Taxes [Line Items]          
Cash and cash equivalents   $ 596,900      
Minimum [Member] | Non-U.S jurisdictions [Member]          
Schedule Of Income Taxes [Line Items]          
Statutory federal rate   0.00%      
Maximum [Member] | Non-U.S jurisdictions [Member]          
Schedule Of Income Taxes [Line Items]          
Statutory federal rate   34.00%