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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance | $ 2,307,041 | $ 1,960,733 | $ 1,515,854
Other comprehensive income (loss) before reclassifications | (112,487) | 103,714 | 52,346
Reclassification adjustments for gains included in net income (loss) |  | (850) | (2,693)
Total other comprehensive (loss) income, net of tax | (115,731) | 102,864 | 49,653
Balance | 3,177,622 | 2,307,041 | 1,960,733
Gains (Losses) on Available-For-Sale and Transferred Debt Securities |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance | 143,443 | 40,226 | (6,613)
Other comprehensive income (loss) before reclassifications | (113,161) | 104,067 | 57,607
Reclassification adjustments for gains included in net income (loss) |  | (850) | (10,768)
Total other comprehensive (loss) income, net of tax | (116,405) | 103,217 | 46,839
Balance | 27,038 | 143,443 | 40,226
(Losses) Gains on Derivatives Used for Cash Flow Hedges |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance | (353) | 0 | (2,814)
Other comprehensive income (loss) before reclassifications | 674 | (353) | (5,261)
Reclassification adjustments for gains included in net income (loss) | 0 | 0 | 8,075
Total other comprehensive (loss) income, net of tax | 674 | (353) | 2,814
Balance | 321 | (353) | 0
Accumulated Other Comprehensive Income (Loss) |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Balance | 143,090 | 40,226 | (9,427)
Total other comprehensive (loss) income, net of tax | (115,731) | 102,864 | 49,653
Balance | 27,359 | $ 143,090 | $ 40,226
Reclassification adjustments for gains and transfers included in net income |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Reclassification adjustments for gains included in net income (loss) | (590) |  |
Reclassifications adjustments for amortization included in net income for transferred securities |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |
Reclassification adjustments for gains included in net income (loss) | $ (2,654) |  |

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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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