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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance, net of tax | $ 1,145,977 | $ 1,319,112
Unrealized/Unrecognized gains (losses) on debt securities |  |
Unrealized holding gains (losses) on debt securities available for sale, net of tax | 21,944 | (74,556)
Unrealized losses on debt securities transferred to held to maturity from available for sale, net of tax | 0 | (34,644)
Amounts reclassified from AOCI, net of tax | 3 | 76
Amortization of unrealized losses on securities transferred to held to maturity, net of tax | (1,210) | (631)
Unrealized gains (losses) on cash flow hedges |  |
Unrealized holding gains (losses) on cash flow hedges, net of tax | 3,050 | (4,845)
Amounts reclassified from AOCI, net of tax | (1,293) | 357
Ending balance, net of tax | 1,198,558 | 1,218,025
AOCI |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Beginning balance, net of tax | (273,278) | (23,758)
Unrealized gains (losses) on cash flow hedges |  |
Accumulated other comprehensive income (loss) ending balance period, before tax | (343,773) | (192,467)
Accumulated other comprehensive income (loss) ending balance period, tax effect | 97,989 | 54,862
Ending balance, net of tax | (245,784) | (137,605)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Accumulated other comprehensive income (loss) beginning balance period, before tax | (352,878) | (32,272)
Accumulated other comprehensive income (loss) beginning balance period, tax effect | 100,585 | 9,199
Beginning balance, net of tax | (252,293) | (23,073)
Unrealized/Unrecognized gains (losses) on debt securities |  |
Unrealized holding gains (losses) on debt securities available for sale, before tax | 30,693 | (104,282)
Unrealized holding gains (losses) on debt securities available for sale, tax effect | (8,749) | 29,726
Unrealized holding gains (losses) on debt securities available for sale, net of tax | 21,944 | (74,556)
Unrealized losses on debt securities transferred to held to maturity from available for sale, before tax | 0 | (48,456)
Unrealized losses on debt securities transferred to held to maturity from available for sale, tax effect | 0 | 13,812
Unrealized losses on debt securities transferred to held to maturity from available for sale, net of tax | 0 | (34,644)
Amounts reclassified from AOCI, before tax | (4) | (106)
Reclassification adjustment for realized (gains) losses on debt securities available for sale included in net income, tax expense (benefit) | 1 | 30
Amounts reclassified from AOCI, net of tax | (3) | (76)
Amortization of unrealized losses on securities transferred to held to maturity, before tax | 1,693 | 883
Amortization of unrealized losses on securities transferred to held to maturity, tax effect | 483 | 252
Amortization of unrealized losses on securities transferred to held to maturity, net of tax | 1,210 | 631
Unrealized gains (losses) on cash flow hedges |  |
Accumulated other comprehensive income (loss) ending balance period, before tax | (320,496) | (184,233)
Accumulated other comprehensive income (loss) ending balance period, tax effect | 91,354 | 52,515
Ending balance, net of tax | (229,142) | (131,718)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Accumulated other comprehensive income (loss) beginning balance period, before tax | (29,350) | (958)
Accumulated other comprehensive income (loss) beginning balance period, tax effect | 8,365 | 273
Beginning balance, net of tax | (20,985) | (685)
Unrealized gains (losses) on cash flow hedges |  |
Unrealized holding gains (losses) on cash flow hedges, before tax | 4,264 | (6,776)
Unrealized holding gains (losses) on cash flow hedges, tax effect | (1,214) | 1,931
Unrealized holding gains (losses) on cash flow hedges, net of tax | 3,050 | (4,845)
(Gain) loss reclassified from OCI to interest expense, net of tax | 1,809 | (500)
Amounts reclassified from AOCI, tax effect | (516) | 143
Amounts reclassified from AOCI, net of tax | 1,293 | (357)
Accumulated other comprehensive income (loss) ending balance period, before tax | (23,277) | (8,234)
Accumulated other comprehensive income (loss) ending balance period, tax effect | 6,635 | 2,347
Ending balance, net of tax | $ (16,642) | $ (5,887)

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