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Income Taxes - Reconciliation of Statutory Rate to Effective Tax Rate (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
U.S. statutory tax rate | 21.00% | 21.00% | 21.00%
U.S. state income taxes, net of U.S. federal tax benefit | 1.90% | 2.90% | 5.00%
Foreign earnings at other than U.S. rates | 0.30% | 0.00% | (0.10%)
Change in valuation allowance | (33.10%) | (14.30%) | (2.70%)
Benefit of net operating loss carryback provision | 0 | 0.011 | 0
Non-deductible goodwill impairment | 0.00% | (11.50%) | (15.60%)
Non-controlling interest | 0.00% | 0.00% | (0.30%)
Nondeductible excess compensation | (10.10%) | (0.30%) | (0.50%)
Excess tax benefits (shortfalls) on stock-based compensation | 8.10% | (0.30%) | (0.20%)
Convertible debt extinguishment | (1.50%) | 0.00% | 0.00%
Change in uncertain tax positions | 0.20% | 0.00% | 0.10%
Nontaxable earnout | 0.00% | 0.00% | (1.40%)
Change in state rate | 6.80% | 1.30% | (0.70%)
Return to provision | 6.60% | (0.80%) | 1.00%
Change in indefinite reinvestment assertion for domestic subsidiaries | 0.00% | 1.00% | 2.60%
Tax sharing settlement | (1.10%) | 0.00% | 0.00%
Other, net | (0.70%) | 0.60% | (1.30%)
Effective tax rate | (1.60%) | 0.70% | 6.90%

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