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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Reconciliation of the expected statutory federal income tax provision |  |  |
Federal statutory rate | 21.00% | 21.00% | 21.00%
State and local taxes | 4.20% | 5.40% | 5.50%
Stock compensation | 0.50% | (0.10%) | 1.80%
Goodwill impairment and dispositions | 0.00% | (1.60%) | 7.40%
Nondeductible transaction expenses | 0.00% | (0.50%) | 0.00%
Nondeductible convertible notes costs | (3.30%) | (1.00%) | 0.00%
Decrease in uncertain tax positions | 0.40% | 0.90% | 0.00%
Change in tax rates from change in tax law | (1.20%) | 0.00% | 0.00%
Deferred tax benefit of foreign subsidiaries held for sale | 0.00% | 1.00% | 0.00%
Valuation allowance | 2.60% | (33.90%) | 1.80%
Deferred tax recognition on life insurance | (1.30%) | 0.00% | 0.00%
Tax credits | 0.40% | 0.10% | (1.10%)
Other | (1.00%) | 0.50% | (1.20%)
Effective income tax rate | 22.30% | (8.20%) | 35.20%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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