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Income Taxes (Income Tax Computed by Applying U.S. Federal Statutory Income Tax Rate) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |
Income tax expense computed at the statutory rate | $ 149,598 | $ 140,454 | $ 102,803
Effect of tax-exempt interest | (43,114) | (50,602) | (50,740)
Tax benefit on dividends paid in our 401k plan | (2,135) | (1,854) | (1,764)
Net tax benefit from stock-based compensation | (894) | (4,602) | (7,877)
Non-deductible FDIC premiums | 5,263 | 3,277 | 2,629
Non-deductible compensation | 2,591 | 2,250 | 1,773
Non-deductible meals and entertainment | 1,692 | 683 | 625
Tax basis adjustment of premises and equipment | 0 | 0 | (1,026)
Other | 1,399 | 71 | 36
Income tax expense, as reported | $ 114,400 | $ 89,677 | $ 46,459

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- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes 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 -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 35 -Paragraph 2 -SubTopic 740 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480887/718-740-35-2 + Details
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