Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)

v3.20.4
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Federal tax expense, at statutory rate 21.00% 21.00% 21.00%
State income tax expense, net of federal benefit 4.20% 3.90% 3.60%
Change in valuation allowance 0.70% 0.30% 1.00%
Tax credits (10.20%) (2.70%) (6.80%)
Share-based compensation (3.50%) (2.40%) (3.10%)
Impact of nondeductible compensation 2.60% 1.60% 0.70%
Automatic worthless stock deduction (3.50%) 0.00% 0.00%
Goodwill impairment 53.70% 0.00% 0.00%
Uncertain tax positions 4.40% 0.00% 0.00%
Other, net 0.10% 1.90% 0.80%
Effective tax rate 69.50% 23.60% 17.20%