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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2023
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
The provision (benefit) for income taxes consists of the following:
 Three Months EndedNine Months Ended
 September 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
 (in thousands)
Current$14,892 $8,763 $33,364 $17,849 
Deferred521 (436)(3,917)(563)
     Income tax provision$15,413 $8,327 $29,447 $17,286 
Schedule of Effective Income Tax Rate Reconciliation The reconciliation of the Federal statutory income tax rate to the effective income tax rate is as follows:
 Three Months EndedNine Months Ended
 September 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
Federal statutory rate21.0 %21.0 %21.0 %21.0 %
State income taxes, net of Federal benefit3.4 5.0 4.0 4.7 
Excess tax benefits related to share-based compensation (Note 12)
(0.8)(1.5)(3.9)(1.6)
Return to provision0.9 (0.4)0.3 (0.5)
Research and development credits(0.2)(0.7)(0.9)(1.0)
Change in valuation allowance (Oklahoma Investment Credit)— — (2.0)— 
Other— (0.1)(0.1)(0.7)
     Effective tax rate24.3 %23.3 %18.4 %21.9 %