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Securities - Schedule of Information Regarding Securities with Unrealized Losses (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS and HTM | $ 555,070 | $ 82,266
Unrealized Losses, AFS and HTM | 2,348 | 301
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS and HTM | 7,003 | 52,700
Unrealized Losses, AFS and HTM | 332 | 470
Total |  |
Fair Value, AFS and HTM | 562,073 | 134,966
Unrealized Losses, AFS and HTM | 2,680 | 771
Government-sponsored enterprise securities |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS | 29,812 | 4,992
Unrealized Losses, AFS | 181 | 8
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS | 0 | 0
Unrealized Losses, AFS | 0 | 0
Total |  |
Fair Value, AFS | 29,812 | 4,992
Unrealized Losses, AFS | 181 | 8
Mortgage-backed securities |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS and HTM | 497,992 | 77,274
Unrealized Losses, AFS and HTM | 1,957 | 293
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS and HTM | 6,168 | 50,851
Unrealized Losses, AFS and HTM | 167 | 382
Total |  |
Fair Value, AFS and HTM | 504,160 | 128,125
Unrealized Losses, AFS and HTM | 2,124 | 675
Corporate bonds |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, AFS | 3,956 | 0
Unrealized Losses, AFS | 45 | 0
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, AFS | 835 | 915
Unrealized Losses, AFS | 165 | 85
Total |  |
Fair Value, AFS | 4,791 | 915
Unrealized Losses, AFS | 210 | 85
State and local governments |  |
Securities in an Unrealized Loss Position for Less than 12 Months |  |
Fair Value, HTM | 23,310 | 0
Unrealized Losses, HTM | 165 | 0
Securities in an Unrealized Loss Position for More than 12 Months |  |
Fair Value, HTM | 0 | 934
Unrealized Losses, HTM | 0 | 3
Total |  |
Fair Value, HTM | 23,310 | 934
Unrealized Losses, HTM | $ 165 | $ 3

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