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Parent Company Only Condensed Financial Information - Condensed Parent Company Only Statements of Income (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Condensed Income Statements, Captions [Line Items] |  |  |
Interest income | $ 387,555 | $ 322,115 | $ 311,153
Interest expense | (18,425) | (37,387) | (55,250)
Credit loss (expense) benefit | 8,830 | (38,329) | (7,942)
Other income |  | 50,627 |
Salaries and employee benefits expense | (173,951) | (126,975) | (112,862)
Other expense | (31,461) | (26,263) | (29,207)
Income tax (expense) benefit | (31,980) | (20,686) | (16,902)
Net income | 112,974 | 64,024 | 58,544
Dividends on preferred stock | (3,206) | (1,701) | 0
Net income available to common stockholders | 109,768 | 62,323 | 58,544
Comprehensive income attributable to Parent | 115,189 | 68,737 | 60,853
Parent Company |  |  |
Condensed Income Statements, Captions [Line Items] |  |  |
Interest income | 100 | 270 | 1,163
Interest expense | (8,220) | (7,477) | (6,464)
Credit loss (expense) benefit | (56) | (1,899) | 83
Other income | 53 | (20) | (187)
Salaries and employee benefits expense | (618) | (606) | (613)
Other expense | (2,379) | (2,376) | (2,069)
Income (loss) before income tax and income from subsidiaries | (11,120) | (12,108) | (8,087)
Income tax (expense) benefit | 2,202 | 2,631 | 193
Dividends from subsidiaries and equity in undistributed subsidiary income | 121,892 | 73,501 | 66,438
Net income | 112,974 | 64,024 | 58,544
Dividends on preferred stock | (3,206) | (1,701) | 0
Net income available to common stockholders | 109,768 | 62,323 | 58,544
Comprehensive income attributable to Parent | $ 115,189 | $ 68,737 | $ 60,853

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