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Investment Securities - Summary of Unrealized Losses (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months, Fair Value | $ 143,408 | $ 353,658
Less than 12 months, Unrealized losses | (5,960) | (32,220)
12 months or more, Fair Value | 548,144 | 350,749
12 months or more, Unrealized Loss | (95,844) | (81,254)
Total, Fair Value | 691,552 | 704,407
Total, Unrealized losses | (101,804) | (113,474)
U.S. Treasury Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months, Fair Value | 72,153 | 71,388
Less than 12 months, Unrealized losses | (1,994) | (2,643)
Total, Fair Value | 72,153 | 71,388
Total, Unrealized losses | (1,994) | (2,643)
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]. |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months, Fair Value | 43,304 | 83,748
Less than 12 months, Unrealized losses | (2,112) | (6,686)
12 months or more, Fair Value | 175,914 | 141,272
12 months or more, Unrealized Loss | (31,964) | (31,123)
Total, Fair Value | 219,218 | 225,020
Total, Unrealized losses | (34,076) | (37,809)
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months, Fair Value | 25,905 | 196,449
Less than 12 months, Unrealized losses | (1,745) | (22,809)
12 months or more, Fair Value | 372,230 | 209,477
12 months or more, Unrealized Loss | (63,880) | (50,131)
Total, Fair Value | 398,135 | 405,926
Total, Unrealized losses | (65,625) | (72,940)
Municipal Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months, Fair Value | 154 | 153
Less than 12 months, Unrealized losses | (1) | (2)
Total, Fair Value | 154 | 153
Total, Unrealized losses | (1) | (2)
Corporate Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Less than 12 months, Fair Value | 1,892 | 1,920
Less than 12 months, Unrealized losses | (108) | (80)
Total, Fair Value | 1,892 | 1,920
Total, Unrealized losses | $ (108) | $ (80)

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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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