XML 137 R120.htm IDEA: XBRL DOCUMENT v3.20.4
Income Taxes (Income Tax Expense) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Current income tax expense $ 36,002 $ 48,256 $ 840
Deferred income tax expense (benefit) (15,832) 7,614 52,923
Income tax expense, as reported $ 20,170 $ 55,870 $ 53,763
Effective tax rate 5.70% 11.20% 10.60%