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Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
Income tax expense at statutory federal income tax rate | $ 207,765 | $ 101,779 | $ 160,653
State income tax expense, net of federal income tax benefit | 38,452 | 11,168 | 33,764
Income not subject to tax | (10,455) | (9,207) | (6,564)
Low income housing tax credits and other tax benefits, net of amortization | (4,858) | (2,611) | (1,583)
FDIC premiums | 4,111 | 4,744 | 5,802
General business tax credits | (3,727) | (657) | (678)
Excess tax benefit from share-based compensation | (3,084) | 311 | (1,337)
Executive compensation | 1,096 | 1,501 | 6,385
Goodwill impairment | 0 | 9,424 | 0
Other, net | (407) | (5,482) | 4,793
Total income tax expense | $ 228,893 | $ 110,970 | $ 201,235
Effective tax rate | 23.10% | 22.90% | 26.30%

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- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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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