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Parent Company Financial Information (Condensed Statements of Income) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Condensed Financial Statements Captions Line Items      
Interest expense $ 28,735 $ 12,475 $ 22,314
Income before income tax benefit and equity in undistributed earnings of subsidiary 70,970 97,222 45,723
Income tax (expense) benefit (14,397) (19,525) (7,391)
Net income (loss) 56,573 77,697 38,332
Parent Company [Member]      
Condensed Financial Statements Captions Line Items      
Dividends from subsidiary and associated companies 32,000 24,000 23,000
Management and service fees from subsidiaries 511 147 146
Other income (4) 93 121
Total income 32,507 24,240 23,267
Interest expense 4,242 4,237 2,888
Operating expenses 3,213 3,379 3,171
Total expense 7,455 7,616 6,059
Income before income tax benefit and equity in undistributed earnings of subsidiary 25,052 16,624 17,208
Income tax (expense) benefit 1,848 1,999 1,399
Income before equity in undistributed earnings of subsidiary 26,900 18,623 18,607
Equity in undistributed earnings of subsidiary 29,673 59,074 19,725
Net income (loss) $ 56,573 $ 77,697 $ 38,332