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Goodwill and Intangible Assets - Summary of Finite-Lived Intangible Assets (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($)
Finite-Lived Intangible Assets [Line Items] |
Useful life (in years) | 20 years
At inception: | $ 231.0
Accumulated amortization and impairments: | (59.2)
Total | $ 171.8
Value of business acquired |
Finite-Lived Intangible Assets [Line Items] |
Useful life (in years) | 28 years
At inception: | $ 100.1
Accumulated amortization and impairments: | (29.6)
Total | $ 70.5
Value of distribution acquired |
Finite-Lived Intangible Assets [Line Items] |
Useful life (in years) | 17 years
At inception: | $ 54.0
Accumulated amortization and impairments: | $ (14.7)
Value of agency relationships |
Finite-Lived Intangible Assets [Line Items] |
Useful life (in years) | 14 years
At inception: | $ 17.0
Accumulated amortization and impairments: | $ (8.2)
Value of customer relationships |
Finite-Lived Intangible Assets [Line Items] |
Useful life (in years) | 10 years
At inception: | $ 59.9
Accumulated amortization and impairments: | $ (6.7)

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