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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Income Tax Provision
Our income before income tax provision, income tax provision and effective tax rates were as follows:
 Three Months EndedSix Months Ended
(in thousands, except percentages)June 30,
2021
June 30,
2020
June 30,
2021
June 30,
2020
Income before income tax provision$128,860 $112,585 $176,483 $145,909 
Income tax provision 35,144 16,021 10,369 3,281 
Effective tax rate27.3 %14.2 %5.9 %2.2 %