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 6 Months Ended
Jun. 30, 2019
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Income Taxes [Line Items]        
U.S. federal and state statutory rate   25.00%    
Cash and cash equivalents $ 779,281 $ 1,352,120 $ 824,876 $ 872,237
Cumulative total earnings   228,200    
Cumulative income tax expense $ 1,500      
Non-US [Member]        
Schedule Of Income Taxes [Line Items]        
Cash and cash equivalents   $ 588,300    
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   44.00%    
Non-US [Member] | Funds Available For Repatriation [Member]        
Schedule Of Income Taxes [Line Items]        
Cash and cash equivalents   $ 588,300    
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%