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Income Taxes - Schedule of Differences Between Effective Rate and United States Federal Income Tax Statutory Rate (Detail)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Tax at statutory rate 21.00% 21.00% 21.00%
State income tax, net of federal benefit 4.72% 24.34% 6.45%
Non-deductible expenses 3.42% 60.44% 3.98%
Equity compensation adjustments 0.77% 98.61% 6.45%
Change in accrual estimates relating to uncertain tax positions (1.08%) 4.22% (9.63%)
Change in valuation allowance (0.26%) 23.67% 0.39%
Other, net (0.46%) 1.71% (0.45%)
Change in tax law (7.97%)    
Income tax provision 20.14% 233.99% 28.19%