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v3.21.2

Securities, HTM Securities in Continuous Unrealized Loss Position (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 USD ($) Position | Sep. 30, 2021 USD ($) Position | Dec. 31, 2020 USD ($) Position
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 156,611 | $ 156,611 | $ 103,147
12 months or longer | 99,632 | 99,632 | 0
Total | 256,243 | 256,243 | 103,147
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (2,290) | (2,290) | (1,675)
12 months or longer | (3,944) | (3,944) | 0
Total | $ (6,234) | $ (6,234) | $ (1,675)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 60 | 60 | 9
12 months or longer | Position | 8 | 8 | 0
Total | Position | 68 | 68 | 9
HTM debt securities | $ 683,103 | $ 683,103 | $ 616,560
Accrued interest reversed against interest income | 0 | 0 | 0
Collateral-dependent HTM debt securities | 0 | 0 | 0
AIR on HTM debt securities | 2,600 | 2,600 | 2,700
Past Due [Member] |  |  |
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
HTM debt securities | 0 | 0 | 0
Federal Agency [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | 0 | 0 | 98,342
12 months or longer | 96,179 | 96,179 | 0
Total | 96,179 | 96,179 | 98,342
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | 0 | 0 | (1,658)
12 months or longer | (3,821) | (3,821) | 0
Total | $ (3,821) | $ (3,821) | $ (1,658)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 0 | 0 | 4
12 months or longer | Position | 4 | 4 | 0
Total | Position | 4 | 4 | 4
HTM debt securities | $ 100,000 | $ 100,000 | $ 100,000
Mortgage-Backed [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | 56,996 | 56,996 |
12 months or longer | 0 | 0 |
Total | 56,996 | 56,996 |
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (568) | (568) |
12 months or longer | 0 | 0 |
Total | $ (568) | $ (568) |
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 5 | 5 |
12 months or longer | Position | 0 | 0 |
Total | Position | 5 | 5 |
Collateralized Mortgage Obligations [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 31,809 | $ 31,809 |
12 months or longer | 0 | 0 |
Total | 31,809 | 31,809 |
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (341) | (341) |
12 months or longer | 0 | 0 |
Total | $ (341) | $ (341) |
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 5 | 5 |
12 months or longer | Position | 0 | 0 |
Total | Position | 5 | 5 |
State & Municipal [Member] |  |  |
Unrealized Loss Position, Fair Value [Abstract] |  |  |
Less than 12 months | $ 67,806 | $ 67,806 | 4,805
12 months or longer | 3,453 | 3,453 | 0
Total | 71,259 | 71,259 | 4,805
Unrealized Loss Position, Unrealized Losses [Abstract] |  |  |
Less than 12 months | (1,381) | (1,381) | (17)
12 months or longer | (123) | (123) | 0
Total | $ (1,504) | $ (1,504) | $ (17)
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Less than 12 months | Position | 50 | 50 | 5
12 months or longer | Position | 4 | 4 | 0
Total | Position | 54 | 54 | 5
HTM debt securities | $ 322,503 | $ 322,503 | $ 214,863
US Government Agencies Debt Securities and US Government-sponsored Enterprises Debt Securities [Member] |  |  |
Unrealized Loss Position, Number of Positions [Abstract] |  |  |
Held-to-maturity debt securities, percentage |  | 53.00% | 65.00%

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