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Securities Securities - Unrealized Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | $ 1,456,921 | $ 1,946,549
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 77,421 | 21,578
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 1,550,911 | 317,275
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 248,005 | 11,808
Debt Securities, Available-for-sale, Unrealized Loss Position | 3,007,832 | 2,263,824
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 325,426 | 33,386
US Treasury Securities |  |
Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 192,188 | 178,610
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 1,963 | 881
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 1,997 | 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 4 | 0
Debt Securities, Available-for-sale, Unrealized Loss Position | 194,185 | 178,610
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 1,967 | 881
U.S. Government Agency Securities |  |
Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 46,062 | 365,833
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 2,224 | 3,024
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value | 350,094 | 54,266
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 34,094 | 1,974
Debt Securities, Available-for-sale, Unrealized Loss Position | 396,156 | 420,099
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 36,318 | 4,998
Mortgage-backed Agency Securities |  |
Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 390,014 | 825,664
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 34,106 | 11,859
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 570,601 | 178,956
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 109,477 | 6,647
Debt Securities, Available-for-sale, Unrealized Loss Position | 960,615 | 1,004,620
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 143,583 | 18,506
State and Municipal Securities |  |
Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 568,691 | 363,102
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 18,863 | 2,665
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 304,451 | 57,270
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 59,694 | 1,045
Debt Securities, Available-for-sale, Unrealized Loss Position | 873,142 | 420,372
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 78,557 | 3,710
Asset-backed Securities |  |
Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 513 | 198,349
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 5 | 2,595
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 116,442 | 6,513
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 16,978 | 190
Debt Securities, Available-for-sale, Unrealized Loss Position | 116,955 | 204,862
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | 16,983 | 2,785
Corporate Notes |  |
Investment securities, continuous unrealized loss position [Abstract] |  |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months | 259,453 | 14,991
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss | 20,260 | 554
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer | 207,326 | 20,270
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss | 27,758 | 1,952
Debt Securities, Available-for-sale, Unrealized Loss Position | 466,779 | 35,261
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss | $ 48,018 | $ 2,506

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922890-210455 + Details
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