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Changes in Accumulated Other Comprehensive Income by Component - Reclassification Adjustments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Tax (expense) benefit $ (15,960) $ (30,504) $ (20,515)
Net income 45,863 98,682 64,581
Realized Gains (Losses) on Sale of Available-for-sale Securities | Amounts Reclassified from Accumulated Other Comprehensive Income      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Gains (losses) from the sale of available-for-sale securities 55 (114) 111
Tax (expense) benefit (14) 27 (24)
Net income $ 41 $ (87) $ 87