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Securities - Fair Value and Age of Gross Unrealized Losses by Investment Category (Details) $ in Thousands | Dec. 31, 2021 USD ($) security | Dec. 31, 2020 USD ($) security
--- | --- | ---
Number of Securities |  |
Less Than 12 Months | security | 30 | 3
12 Months or More | security | 1 | 0
Total | security | 31 | 3
Fair Value |  |
Less Than 12 Months | $ 372,499 | $ 36,196
12 Months or More | 8,933 | 0
Total | 381,432 | 36,196
Unrealized Losses |  |
Less Than 12 Months | (5,393) | (90)
12 Months or More | (374) | 0
Total | $ (5,767) | $ (90)
U.S. Treasury securities |  |
Number of Securities |  |
Less Than 12 Months | security | 8 | 0
12 Months or More | security | 0 | 0
Total | security | 8 | 0
Fair Value |  |
Less Than 12 Months | $ 85,221 | $ 0
12 Months or More | 0 | 0
Total | 85,221 | 0
Unrealized Losses |  |
Less Than 12 Months | (742) | 0
12 Months or More | 0 | 0
Total | $ (742) | $ 0
Collateralized mortgage obligations of U.S. government corporations and agencies |  |
Number of Securities |  |
Less Than 12 Months | security | 12 | 2
12 Months or More | security | 1 | 0
Total | security | 13 | 2
Fair Value |  |
Less Than 12 Months | $ 141,204 | $ 35,697
12 Months or More | 8,933 | 0
Total | 150,137 | 35,697
Unrealized Losses |  |
Less Than 12 Months | (2,436) | (89)
12 Months or More | (374) | 0
Total | $ (2,810) | $ (89)
Residential mortgage-backed securities of U.S. government corporations and agencies |  |
Number of Securities |  |
Less Than 12 Months | security | 3 | 0
12 Months or More | security | 0 | 0
Total | security | 3 | 0
Fair Value |  |
Less Than 12 Months | $ 46,042 | $ 0
12 Months or More | 0 | 0
Total | 46,042 | 0
Unrealized Losses |  |
Less Than 12 Months | (628) | 0
12 Months or More | 0 | 0
Total | $ (628) | $ 0
Commercial mortgage-backed securities of U.S. government corporations and agencies |  |
Number of Securities |  |
Less Than 12 Months | security | 7 |
12 Months or More | security | 0 | 0
Total | security | 7 | 0
Fair Value |  |
Less Than 12 Months | $ 100,032 |
12 Months or More | 0 | 0
Total | 100,032 | 0
Unrealized Losses |  |
Less Than 12 Months | (1,587) |
12 Months or More | 0 | 0
Total | $ (1,587) | $ 0
Corporate Obligations |  |
Number of Securities |  |
Less Than 12 Months | security | 0 | 1
12 Months or More | security | 0 | 0
Total | security | 0 | 1
Fair Value |  |
Less Than 12 Months | $ 0 | $ 499
12 Months or More | 0 | 0
Total | 0 | 499
Unrealized Losses |  |
Less Than 12 Months | 0 | (1)
12 Months or More | 0 | 0
Total | $ 0 | $ (1)

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