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Shareholders' Equity - Pre-tax and After-tax Changes in the Components of Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Reclassification Adjustments, after Tax [Abstract]        
Change in unrealized gain (loss) on available-for-sale debt securities, before tax $ 50,576 $ (55,156) $ 28,703 $ (41,385)
Change in unrealized gain (loss) on available-for-sale debt securities, tax 12,543 (13,899) 7,118 (10,429)
Change in unrealized gain (loss) on available-for-sale debt securities, after tax 38,033 (41,257) 21,585 (30,956)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent [Abstract]        
Reclassification of gain on sale of available-for-sale securities, before tax     0 (381)
Reclassification of gain on sale of available-for-sale securities, tax     0 (96)
Reclassification of gain on sale of available-for-sale securities, after tax 0 0 0 (285)
Other Comprehensive Loss, Held-to-maturity Security, OTTI, after Tax and Adjustments [Abstract]        
Reclassification of gain on held-to-maturity securities, before tax (823) (865) (2,479) (2,635)
Reclassification of gain on held-to-maturity securities, tax (204) (218) (615) (664)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent [Abstract]        
Change in unrealized gain (loss) on cash flow hedges arising during the period, before tax 7,303 (3,588) 1,828 (6,346)
Change in unrealized gain (loss) on cash flow hedges arising during the period, tax 1,811 (904) 453 (1,599)
Change in unrealized gain (loss) on cash flow hedges arising during the period, after tax 5,492 (2,684) 1,375 (4,747)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]        
Reclassification of loss on cash flow hedges, before tax 529 299 1,441 616
Reclassification of loss on cash flow hedges, tax 131 75 357 154
Reclassification of loss on cash flow hedges, after tax (398) (224) (1,084) (462)
OCI, Net of Tax [Abstract]        
Total other comprehensive income (loss), before tax 57,585 (59,310) 29,493 (50,131)
Total other comprehensive income (loss), tax 14,281 (14,946) 7,313 (12,634)
Total other comprehensive income (loss), net of tax $ 43,304 $ (44,364) $ 22,180 $ (37,497)