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Accumulated Other Comprehensive Income (Loss) | 9 Months Ended
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Sep. 30, 2022
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Alternative [Abstract] |
Accumulated Other Comprehensive Income (Loss). | Accumulated Other Comprehensive Income (Loss) The following table represents changes in AOCI by component, net of tax, for the period below (dollars in thousands):
| Three Months Ended September 30,
| 2022 |  | 2021
| Before Tax |  | Tax Effect |  | Net of Tax |  | Before Tax |  | Tax Effect |  | Net of Tax
Unrealized gains (losses) on debt securities available for sale |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (277,310) |  |  | $ | 79,047 |  |  | $ | (198,263) |  |  | $ | 17,013 |  |  | $ | (4,850) |  |  | $ | 12,163 |
Unrealized holding gains (losses) on debt securities available for sale, net | (96,937) |  |  | 27,631 |  |  | (69,306) |  |  | (17,198) |  |  | 4,902 |  |  | (12,296) |
Amounts reclassified from AOCI, net | 74 |  |  | (21) |  |  | 53 |  |  | 5 |  |  | (1) |  |  | 4 |
Amortization of unrealized losses on securities transferred to held to maturity | 1,806 |  |  | (515) |  |  | 1,291 |  |  | — |  |  | — |  |  | — |
Balance at end of period | $ | (372,367) |  |  | $ | 106,142 |  |  | $ | (266,225) |  |  | $ | (180) |  |  | $ | 51 |  |  | $ | (129) |
Unrealized gains (losses) on cash flow hedges |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (17,963) |  |  | $ | 5,119 |  |  | $ | (12,844) |  |  | $ | (2,012) |  |  | $ | 574 |  |  | $ | (1,438) |
Unrealized holding gains (losses) on cash flow hedges, net | (14,253) |  |  | 4,061 |  |  | (10,192) |  |  | (7) |  |  | 2 |  |  | (5) |
Amounts reclassified from AOCI, net | 370 |  |  | (104) |  |  | 266 |  |  | 288 |  |  | (82) |  |  | 206 |
Balance at end of period | $ | (31,846) |  |  | $ | 9,076 |  |  | $ | (22,770) |  |  | $ | (1,731) |  |  | $ | 494 |  |  | $ | (1,237) |
Total AOCI | $ | (404,213) |  |  | $ | 115,218 |  |  | $ | (288,995) |  |  | $ | (1,911) |  |  | $ | 545 |  |  | $ | (1,366) |
| Nine Months Ended September 30,
| 2022 |  | 2021
| Before Tax |  | Tax Effect |  | Net of Tax |  | Before Tax |  | Tax Effect |  | Net of Tax
Unrealized gains (losses) on debt securities available for sale |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (32,272) |  |  | $ | 9,199 |  |  | $ | (23,073) |  |  | $ | 49,644 |  |  | $ | (14,151) |  |  | $ | 35,493 |
Unrealized holding gains (losses) on debt securities available for sale, net | (296,507) |  |  | 84,519 |  |  | (211,988) |  |  | (49,801) |  |  | 14,195 |  |  | (35,606) |
Unrealized losses on debt securities transferred to held to maturity from available for sale | (48,456) |  |  | 13,812 |  |  | (34,644) |  |  | — |  |  | — |  |  | — |
Amounts reclassified from AOCI, net | (28) |  |  | 8 |  |  | (20) |  |  | (23) |  |  | 7 |  |  | (16) |
Amortization of unrealized losses on securities transferred to held to maturity | 4,896 |  |  | (1,396) |  |  | 3,500 |  |  | — |  |  | — |  |  | — |
Balance at end of period | $ | (372,367) |  |  | $ | 106,142 |  |  | $ | (266,225) |  |  | $ | (180) |  |  | $ | 51 |  |  | $ | (129) |
Unrealized gains (losses) on cash flow hedges |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (958) |  |  | $ | 273 |  |  | $ | (685) |  |  | $ | (3,055) |  |  | $ | 871 |  |  | $ | (2,184) |
Unrealized holding gains (losses) on cash flow hedges, net | (30,191) |  |  | 8,604 |  |  | (21,587) |  |  | 470 |  |  | (134) |  |  | 336 |
Amounts reclassified from AOCI, net | (697) |  |  | 199 |  |  | (498) |  |  | 854 |  |  | (243) |  |  | 611 |
Balance at end of period | $ | (31,846) |  |  | $ | 9,076 |  |  | $ | (22,770) |  |  | $ | (1,731) |  |  | $ | 494 |  |  | $ | (1,237) |
Total AOCI | $ | (404,213) |  |  | $ | 115,218 |  |  | $ | (288,995) |  |  | $ | (1,911) |  |  | $ | 545 |  |  | $ | (1,366) |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI https://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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