Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v3.20.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Schedule Of Income Taxes [Line Items]          
U.S. federal and state statutory rate 25.00%        
Change in effective tax rate due to adjustment in discrete tax expense (benefit) $ 700   $ 2,900    
Cash and cash equivalents 1,158,766   $ 687,498 $ 824,876 $ 872,237
Cumulative total earnings 204,700        
Cumulative income tax expense   $ 1,500      
Non-US [Member]          
Schedule Of Income Taxes [Line Items]          
Cash and cash equivalents $ 476,100        
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 41.00%        
Non-US [Member] | Funds Available For Repatriation [Member]          
Schedule Of Income Taxes [Line Items]          
Cash and cash equivalents $ 476,100        
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%