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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Changes in accumulated other comprehensive income (loss) by component, net of tax |  |  |  |
Beginning balance | $ 1,218,025 | $ 1,265,822 | $ 1,319,112 | $ 1,270,069
Unrealized gains (losses) on debt securities available for sale: |  |  |  |
Unrealized holding gains (losses) on debt securities available for sale, Tax Effect | (27,162) | 2,700 | (56,888) | (9,293)
Unrealized holding gains (losses) on debt securities available for sale, Net of Tax | (68,126) | 6,769 | (142,682) | (23,310)
Unrealized losses on debt securities transferred to held to maturity from available for sale, Tax Effect |  |  | 13,812 |
Unrealized losses on debt securities transferred to held to maturity from available for sale, Net of Tax |  |  | (34,644) |
Amounts reclassified from AOCI, Tax Effect | (1) | 1 | 29 | 8
Amounts reclassified from AOCI, Net of Tax | 3 | (2) | (73) | (20)
Amortization of unrealized losses on securities transferred to held to maturity, Tax Effect | 629 |  | 881 |
Amortization of unrealized losses on securities transferred to held to maturity, Net of Tax | (1,578) |  | (2,209) |
Unrealized gains (losses) on cash flow hedges: |  |  |  |
Unrealized holding gains (losses) on cash flow hedges, Tax Effect | (2,612) | (28) | (4,543) | 136
Unrealized holding gains (losses) on cash flow hedges, Net of Tax | (6,550) | (69) | (11,395) | 341
Amounts reclassified from AOCI, Tax Effect | (160) | 82 | (303) | 161
Amounts reclassified from AOCI, Net of Tax | (407) | 206 | (764) | 405
Ending balance | 1,161,957 | 1,345,691 | 1,161,957 | 1,345,691
AOCI |  |  |  |
Changes in accumulated other comprehensive income (loss) by component, net of tax |  |  |  |
Beginning balance | (137,605) | 3,821 | (23,758) | 33,309
Unrealized gains (losses) on cash flow hedges: |  |  |  |
Accumulated other comprehensive income (loss) ending balance period, Before Tax | (295,273) | 15,001 | (295,273) | 15,001
Accumulated other comprehensive income (loss) ending balance period, Tax Effect | 84,166 | (4,276) | 84,166 | (4,276)
Ending balance | (211,107) | 10,725 | (211,107) | 10,725
Unrealized gains (losses) on debt securities available for sale |  |  |  |
Changes in accumulated other comprehensive income (loss) by component, net of tax |  |  |  |
Accumulated other comprehensive income (loss) beginning balance period, Before Tax | (184,233) | 7,547 | (32,272) | 49,644
Accumulated other comprehensive income (loss) beginning balance period, Tax Effect | 52,515 | (2,151) | 9,199 | (14,151)
Beginning balance | (131,718) | 5,396 | (23,073) | 35,493
Unrealized gains (losses) on debt securities available for sale: |  |  |  |
Unrealized holding gains (losses) on debt securities available for sale, Before Tax | (95,288) | 9,469 | (199,570) | (32,603)
Unrealized holding gains (losses) on debt securities available for sale, Tax Effect | 27,162 | (2,700) | 56,888 | 9,293
Unrealized holding gains (losses) on debt securities available for sale, Net of Tax | (68,126) | 6,769 | (142,682) | (23,310)
Unrealized losses on debt securities transferred to held to maturity from available for sale, Before Tax |  |  | (48,456) |
Unrealized losses on debt securities transferred to held to maturity from available for sale, Tax Effect |  |  | 13,812 |
Unrealized losses on debt securities transferred to held to maturity from available for sale, Net of Tax |  |  | (34,644) |
Amounts reclassified from AOCI, Before Tax | 4 | (3) | (102) | (28)
Amounts reclassified from AOCI, Tax Effect | (1) | 1 | 29 | 8
Amounts reclassified from AOCI, Net of Tax | 3 | (2) | (73) | (20)
Amortization of unrealized losses on securities transferred to held to maturity, Before Tax | 2,207 |  | 3,090 |
Amortization of unrealized losses on securities transferred to held to maturity, Tax Effect | (629) |  | (881) |
Amortization of unrealized losses on securities transferred to held to maturity, Net of Tax | 1,578 |  | 2,209 |
Unrealized gains (losses) on cash flow hedges: |  |  |  |
Accumulated other comprehensive income (loss) ending balance period, Before Tax | (277,310) | 17,013 | (277,310) | 17,013
Accumulated other comprehensive income (loss) ending balance period, Tax Effect | 79,047 | (4,850) | 79,047 | (4,850)
Ending balance | (198,263) | 12,163 | (198,263) | 12,163
Unrealized gains (losses) on cash flow hedges |  |  |  |
Changes in accumulated other comprehensive income (loss) by component, net of tax |  |  |  |
Accumulated other comprehensive income (loss) beginning balance period, Before Tax | (8,234) | (2,203) | (958) | (3,055)
Accumulated other comprehensive income (loss) beginning balance period, Tax Effect | 2,347 | 628 | 273 | 871
Beginning balance | (5,887) | (1,575) | (685) | (2,184)
Unrealized gains (losses) on cash flow hedges: |  |  |  |
Unrealized holding gains (losses) on cash flow hedges, Before Tax | (9,162) | (97) | (15,938) | 477
Unrealized holding gains (losses) on cash flow hedges, Tax Effect | 2,612 | 28 | 4,543 | (136)
Unrealized holding gains (losses) on cash flow hedges, Net of Tax | (6,550) | (69) | (11,395) | 341
Amounts reclassified from AOCI, Before Tax | (567) | 288 | (1,067) | 566
Amounts reclassified from AOCI, Tax Effect | 160 | (82) | 303 | (161)
Amounts reclassified from AOCI, Net of Tax | (407) | 206 | (764) | 405
Accumulated other comprehensive income (loss) ending balance period, Before Tax | (17,963) | (2,012) | (17,963) | (2,012)
Accumulated other comprehensive income (loss) ending balance period, Tax Effect | 5,119 | 574 | 5,119 | 574
Ending balance | $ (12,844) | $ (1,438) | $ (12,844) | $ (1,438)

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