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Business Combinations - Net Cash Paid for Acquisition (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Business Acquisition [Line Items] |  |  |
Goodwill | $ 26.2 | $ 8.8 | $ 9.3
Net cash paid for acquisitions | 0.0 | 1.1 | 0.0
Altru Health System, Trinity Medical Center And NCH Healthcare System |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of assets acquired | 0.9 |  |
Goodwill | 26.2 |  |
Fair value of noncontrolling interest owned by joint venture partner | (27.1) |  |
Net cash paid for acquisitions | $ 0.0 |  |
Shannon Medical, Heritage Valley & ECHD Ventures |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of assets acquired |  | 1.4 |
Goodwill |  | 8.8 |
Fair value of noncontrolling interest owned by joint venture partner |  | (9.1) |
Net cash paid for acquisitions |  | $ 1.1 |
Portercare Adventist and Premier Health Partners |  |  |
Business Acquisition [Line Items] |  |  |
Fair value of assets acquired |  |  | 1.6
Goodwill |  |  | 9.3
Fair value of noncontrolling interest owned by joint venture partner |  |  | (10.9)
Net cash paid for acquisitions |  |  | $ 0.0

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