Investments - Available-for-sale Securities in Unrealized Loss Positions (Details) $ in Thousands | Mar. 31, 2022USD ($)security | Dec. 31, 2021USD ($)security |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 241 | 134 |
Debt securities, greater than 12 months, number of issues | security | 44 | 10 |
Debt securities, number of issues | security | 285 | 144 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 82,140 | $ 95,923 |
Debt securities, greater than 12 months, fair value | 51,068 | 7,801 |
Debt securities, fair value | 133,208 | 103,724 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (4,140) | (1,750) |
Debt securities, greater than 12 months, unrealized losses | (4,126) | (97) |
Debt securities, total unrealized losses | $ (8,266) | $ (1,847) |
U.S. Government | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 8 | 6 |
Debt securities, greater than 12 months, number of issues | security | 4 | 1 |
Debt securities, number of issues | security | 12 | 7 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 10,508 | $ 10,323 |
Debt securities, greater than 12 months, fair value | 6,482 | 4,728 |
Debt securities, fair value | 16,990 | 15,051 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (93) | (47) |
Debt securities, greater than 12 months, unrealized losses | (198) | (30) |
Debt securities, total unrealized losses | $ (291) | $ (77) |
State and local government | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 108 | 41 |
Debt securities, greater than 12 months, number of issues | security | 8 | 4 |
Debt securities, number of issues | security | 116 | 45 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 21,485 | $ 8,875 |
Debt securities, greater than 12 months, fair value | 866 | 446 |
Debt securities, fair value | 22,351 | 9,321 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (1,724) | (172) |
Debt securities, greater than 12 months, unrealized losses | (122) | (17) |
Debt securities, total unrealized losses | $ (1,846) | $ (189) |
Corporate debt | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 54 | 41 |
Debt securities, greater than 12 months, number of issues | security | 12 | 1 |
Debt securities, number of issues | security | 66 | 42 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 23,456 | $ 22,748 |
Debt securities, greater than 12 months, fair value | 7,982 | 705 |
Debt securities, fair value | 31,438 | 23,453 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (1,686) | (505) |
Debt securities, greater than 12 months, unrealized losses | (900) | (45) |
Debt securities, total unrealized losses | $ (2,586) | $ (550) |
Asset-backed securities | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 21 | 24 |
Debt securities, greater than 12 months, number of issues | security | 8 | 2 |
Debt securities, number of issues | security | 29 | 26 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 13,448 | $ 24,305 |
Debt securities, greater than 12 months, fair value | 12,240 | 1,893 |
Debt securities, fair value | 25,688 | 26,198 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (122) | (219) |
Debt securities, greater than 12 months, unrealized losses | (601) | (5) |
Debt securities, total unrealized losses | $ (723) | $ (224) |
Mortgage-backed securities | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 29 | 12 |
Debt securities, greater than 12 months, number of issues | security | 7 | 0 |
Debt securities, number of issues | security | 36 | 12 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 6,714 | $ 27,034 |
Debt securities, greater than 12 months, fair value | 22,224 | 0 |
Debt securities, fair value | 28,938 | 27,034 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (343) | (762) |
Debt securities, greater than 12 months, unrealized losses | (2,228) | 0 |
Debt securities, total unrealized losses | $ (2,571) | $ (762) |
Commercial mortgage-backed securities | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 3 | 0 |
Debt securities, greater than 12 months, number of issues | security | 0 | 0 |
Debt securities, number of issues | security | 3 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 3,111 | $ 0 |
Debt securities, greater than 12 months, fair value | 0 | 0 |
Debt securities, fair value | 3,111 | 0 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (55) | 0 |
Debt securities, greater than 12 months, unrealized losses | 0 | 0 |
Debt securities, total unrealized losses | $ (55) | $ 0 |
Collateralized mortgage obligations | | |
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Number of Positions [Abstract] | | |
Debt securities, less than 12 months, number of issues | security | 18 | 10 |
Debt securities, greater than 12 months, number of issues | security | 5 | 2 |
Debt securities, number of issues | security | 23 | 12 |
Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] | | |
Debt securities, less than 12 months, fair value | $ 3,418 | $ 2,638 |
Debt securities, greater than 12 months, fair value | 1,274 | 29 |
Debt securities, fair value | 4,692 | 2,667 |
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] | | |
Debt securities, less than 12 months, unrealized losses | (117) | (45) |
Debt securities, greater than 12 months, unrealized losses | (77) | 0 |
Debt securities, total unrealized losses | $ (194) | $ (45) |