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Fair Value - Rollforward of Level 3 assets and liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Contingent consideration liability |  |  |  |
Level 3 liabilities rollforward |  |  |  |
Balance at beginning of year |  | $ (16,960) | $ (461) |
Total gains or (losses) (realized/unrealized) - included in earnings | [1] | (364) | 0 |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income |  | 1,170 | 0 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases |  | 0 | (16,494) |
Issuances |  | 0 | 0 |
Sales |  | 0 | 0 | [2]
Settlements |  | 1,908 | (5) |
Transfers in and/or out of Level 3 |  | 0 | 0 |
Balance at end of year |  | (14,246) | (16,960) |
Equity securities |  |  |  |
Level 3 assets rollforward |  |  |  |
Balance at beginning of year |  | 2,918 | 42,015 |
Total gains or (losses) (realized/unrealized) - included in earnings | [1] | (470) | 1,958 |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income |  | 0 | 0 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases |  | 969 | 5,718 |
Issuances |  | 0 | 0 |
Sales |  | (3) | (46,773) | [2]
Settlements |  | 0 | 0 |
Transfers in and/or out of Level 3 |  | 0 | 0 |
Balance at end of year |  | 3,414 | 2,918 |
Available for sale | Structured securities |  |  |  |
Level 3 assets rollforward |  |  |  |
Balance at beginning of year | [3] | 3,347 | 3,426 |
Total gains or (losses) (realized/unrealized) - included in earnings | [1],[3] | (592) | (135) |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income | [3] | (1) | 133 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases | [3] | 0 | 0 |
Issuances | [3] | 0 | 0 |
Sales | [3] | (2,051) | 0 | [2]
Settlements | [3] | (703) | (77) |
Transfers in and/or out of Level 3 | [3] | 0 | 0 |
Balance at end of year | [3] | 0 | 3,347 |
Available for sale | Corporate bonds |  |  |  |
Level 3 assets rollforward |  |  |  |
Balance at beginning of year |  | 13 | 13 |
Total gains or (losses) (realized/unrealized) - included in earnings | [1] | 352 | 0 |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income |  | (1,095) | 0 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases |  | 150,013 | 0 |
Issuances |  | 0 | 0 |
Sales |  | (5,363) | 0 | [2]
Settlements |  | (26,250) | 0 |
Transfers in and/or out of Level 3 |  | 3,557 | 0 |
Balance at end of year |  | 121,227 | 13 |
Fair value option | Corporate bonds |  |  |  |
Level 3 assets rollforward |  |  |  |
Balance at beginning of year |  | 0 | 985 |
Total gains or (losses) (realized/unrealized) - included in earnings | [1] | 0 | 13 |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income |  | 0 | 0 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases |  | 0 | 0 |
Issuances |  | 0 | 0 |
Sales |  | 0 | (998) | [2]
Settlements |  | 0 | 0 |
Transfers in and/or out of Level 3 |  | 0 | 0 |
Balance at end of year |  | 0 | 0 |
Fair value option | Other investments |  |  |  |
Level 3 assets rollforward |  |  |  |
Balance at beginning of year |  | 27,981 | 67,103 |
Total gains or (losses) (realized/unrealized) - included in earnings | [1] | (781) | 868 |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income |  | 0 | 0 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases |  | 12,381 | 13,213 |
Issuances |  | 0 | 0 |
Sales |  | (3,339) | (53,203) | [2]
Settlements |  | (2,983) | 0 |
Transfers in and/or out of Level 3 |  | 0 | 0 |
Balance at end of year |  | 33,259 | 27,981 |
Fair value option | Equity securities |  |  |  |
Level 3 assets rollforward |  |  |  |
Balance at beginning of year |  | 4,748 | 68,988 |
Total gains or (losses) (realized/unrealized) - included in earnings | [1] | (575) | 4,941 |
Total gains or (losses) (realized/unrealized) - included in other comprehensive income |  | 0 | 0 |
Purchases, issuances, sales and settlements |  |  |  |
Purchases |  | 0 | 0 |
Issuances |  | 0 | 0 |
Sales |  | 0 | (69,181) | [2]
Settlements |  | 0 | 0 |
Transfers in and/or out of Level 3 |  | 0 | 0 |
Balance at end of year |  | $ 4,173 | $ 4,748 |
[1] | Gains or losses were included in net realized gains (losses).
[2] | Sales for the 2021 period primarily relates to the Company’s deconsolidation of Somers
[3] | Includes asset backed securities, mortgage backed securities and commercial mortgage backed securities

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