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Condensed Financial Information (Parent Company Only) - Condensed Statements of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Statement [Abstract] |  |  |
Provision for income taxes | $ 61,306 | $ 64,890 | $ 64,265
NET INCOME | 271,156 | 254,904 | 238,167
Preferred stock dividends | 47 | 52 | 339
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS | 271,109 | 254,852 | 237,828
Parent Company |  |  |
Income Statement [Abstract] |  |  |
Dividends from subsidiaries | 227,310 | 311,253 | 67,893
Other income | 1,080 | 762 | 13,658
Income | 228,390 | 312,015 | 81,551
EXPENSE | 44,847 | 37,204 | 40,594
Income before income taxes and equity in undistributed net income of subsidiaries | 183,543 | 274,811 | 40,957
Provision for income taxes | (11,314) | (9,438) | (5,680)
Income before equity in undistributed net income of subsidiaries | 194,857 | 284,249 | 46,637
Equity in undistributed net income of subsidiaries | 76,299 | (29,345) | 191,530
NET INCOME | 271,156 | 254,904 | 238,167
Preferred stock dividends | 47 | 52 | 339
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS | $ 271,109 | $ 254,852 | $ 237,828

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