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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance, net of tax | $ 1,198,558 | $ 1,218,025 | $ 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 | (11,866) | (68,126) | 10,078 | (142,682)
Unrealized losses on debt securities transferred to held to maturity from available for sale, net of tax | 0 | 0 | 0 | (34,644)
Amounts reclassified from AOCI, net of tax | (127) | (3) | (124) | 73
Amortization of unrealized losses on securities transferred to held to maturity, net of tax | (1,113) | (1,578) | (2,323) | (2,209)
Unrealized gains (losses) on cash flow hedges |  |  |  |
Unrealized holding gains (losses) on cash flow hedges, net of tax | (6,036) | (6,550) | (2,986) | (11,395)
Amounts reclassified from AOCI, net of tax | (1,525) | 407 | (2,818) | 764
Ending balance, net of tax | 1,201,948 | 1,161,957 | 1,201,948 | 1,161,957
AOCI |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |
Beginning balance, net of tax | (245,784) | (137,605) | (273,278) | (23,758)
Unrealized gains (losses) on cash flow hedges |  |  |  |
Accumulated other comprehensive income (loss) ending balance period, before tax | (364,945) | (295,273) | (364,945) | (295,273)
Accumulated other comprehensive income (loss) ending balance period, tax effect | 104,024 | 84,166 | 104,024 | 84,166
Ending balance, net of tax | (260,921) | (211,107) | (260,921) | (211,107)
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 | (320,496) | (184,233) | (352,878) | (32,272)
Accumulated other comprehensive income (loss) beginning balance period, tax effect | 91,354 | 52,515 | 100,585 | 9,199
Beginning balance, net of tax | (229,142) | (131,718) | (252,293) | (23,073)
Unrealized/Unrecognized gains (losses) on debt securities |  |  |  |
Unrealized holding gains (losses) on debt securities available for sale, before tax | (16,597) | (95,288) | 14,096 | (199,570)
Unrealized holding gains (losses) on debt securities available for sale, tax effect | 4,731 | 27,162 | (4,018) | 56,888
Unrealized holding gains (losses) on debt securities available for sale, net of tax | (11,866) | (68,126) | 10,078 | (142,682)
Unrealized losses on debt securities transferred to held to maturity from available for sale, before tax | 0 | 0 | 0 | (48,456)
Unrealized losses on debt securities transferred to held to maturity from available for sale, tax effect | 0 | 0 | 0 | 13,812
Unrealized losses on debt securities transferred to held to maturity from available for sale, net of tax | 0 | 0 | 0 | (34,644)
Amounts reclassified from AOCI, before tax | 178 | 4 | 174 | (102)
Reclassification adjustment for realized (gains) losses on debt securities available for sale included in net income, tax expense (benefit) | (51) | (1) | (50) | 29
Amounts reclassified from AOCI, net of tax | 127 | 3 | 124 | (73)
Amortization of unrealized losses on securities transferred to held to maturity, before tax | 1,556 | 2,207 | 3,249 | 3,090
Amortization of unrealized losses on securities transferred to held to maturity, tax effect | 443 | 629 | 926 | 881
Amortization of unrealized losses on securities transferred to held to maturity, net of tax | 1,113 | 1,578 | 2,323 | 2,209
Unrealized gains (losses) on cash flow hedges |  |  |  |
Accumulated other comprehensive income (loss) ending balance period, before tax | (335,359) | (277,310) | (335,359) | (277,310)
Accumulated other comprehensive income (loss) ending balance period, tax effect | 95,591 | 79,047 | 95,591 | 79,047
Ending balance, net of tax | (239,768) | (198,263) | (239,768) | (198,263)
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 | (23,277) | (8,234) | (29,350) | (958)
Accumulated other comprehensive income (loss) beginning balance period, tax effect | 6,635 | 2,347 | 8,365 | 273
Beginning balance, net of tax | (16,642) | (5,887) | (20,985) | (685)
Unrealized gains (losses) on cash flow hedges |  |  |  |
Unrealized holding gains (losses) on cash flow hedges, before tax | (8,442) | (9,162) | (4,178) | (15,938)
Unrealized holding gains (losses) on cash flow hedges, tax effect | 2,406 | 2,612 | 1,192 | 4,543
Unrealized holding gains (losses) on cash flow hedges, net of tax | (6,036) | (6,550) | (2,986) | (11,395)
(Gain) loss reclassified from OCI to interest expense, net of tax | 2,133 | (567) | 3,942 | (1,067)
Amounts reclassified from AOCI, tax effect | (608) | 160 | (1,124) | 303
Amounts reclassified from AOCI, net of tax | 1,525 | (407) | 2,818 | (764)
Accumulated other comprehensive income (loss) ending balance period, before tax | (29,586) | (17,963) | (29,586) | (17,963)
Accumulated other comprehensive income (loss) ending balance period, tax effect | 8,433 | 5,119 | 8,433 | 5,119
Ending balance, net of tax | $ (21,153) | $ (12,844) | $ (21,153) | $ (12,844)

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