Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Earnings before Income Taxes (Detail)

v3.10.0.1
Income Taxes - Summary of Earnings before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Expected income tax expense $ 90,696 $ 134,491 $ 125,819
State income tax, net of federal benefit 3,051 297 2,335
Rate differential on foreign income (40,065) (95,565) (58,508)
Change in unrecognized tax benefits 820 1,449 135
Non-deductible compensation 6,269 6,592 4,414
Tax credits (2,539) (2,151) (2,044)
Excess tax benefit on share based compensation (1,557) (2,571)  
U.S. tax rate change   1,923  
U.S. transition tax (10,963) 98,015  
U.S. tax on foreign earnings 9,956    
Other 2,077 (1,110) 535
Change in valuation allowance 2,866 7,786 1,439
Total income taxes (benefit) $ 60,611 $ 149,156 $ 74,125
Effective tax rate 14.00% 38.80% 20.60%