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Parent Company Financial Statements (Statements of Income) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items] |  |  |
Dividend income from subsidiary | $ 412 | $ 655 | $ 722
Income tax benefit | (17,627) | (14,910) | (14,376)
Net income | 69,014 | 59,486 | 57,203
Parent Company [Member] |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Dividend income from subsidiary | 41,700 | 39,400 | 36,900
Other income | 7 | 103 | 1,128
Total operating income | 41,707 | 39,503 | 38,028
Interest on borrowings | 2,524 | 3,512 | 3,267
Fees to Bank | 160 | 160 | 160
Other operating expenses | 628 | 578 | 641
Total operating expenses | 3,312 | 4,250 | 4,068
Income before equity in undistributed income of subsidiaries and income taxes | 38,395 | 35,253 | 33,960
Equity in undistributed income of subsidiaries | 29,869 | 23,299 | 22,580
Income before income tax expense | 68,264 | 58,552 | 56,540
Income tax benefit | 750 | 934 | 663
Net income | $ 69,014 | $ 59,486 | $ 57,203

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