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Goodwill and Intangible Assets - Intangible Assets by Major Class (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Schedule of Intangible Assets by Major Class [Line Items] |  |
Cost | $ 81.1 | $ 83.2
Accumulated amortization | (58.1) | (52.7)
Net | 23.0 | 30.5
Patents and licensing |  |
Schedule of Intangible Assets by Major Class [Line Items] |  |
Cost | 25.1 | 25.9
Accumulated amortization | (19.4) | (17.9)
Net | 5.7 | 8.0
Technology |  |
Schedule of Intangible Assets by Major Class [Line Items] |  |
Cost | 3.3 | 3.3
Accumulated amortization | (2.0) | (1.7)
Net | 1.3 | 1.6
Trademarks |  |
Schedule of Intangible Assets by Major Class [Line Items] |  |
Cost | 2.0 | 2.0
Accumulated amortization | (1.9) | (1.8)
Net | 0.1 | 0.2
Customer relationships |  |
Schedule of Intangible Assets by Major Class [Line Items] |  |
Cost | 40.1 | 40.9
Accumulated amortization | (25.4) | (23.4)
Net | 14.7 | 17.5
Customer contracts |  |
Schedule of Intangible Assets by Major Class [Line Items] |  |
Cost | 10.6 | 11.1
Accumulated amortization | (9.4) | (7.9)
Net | $ 1.2 | $ 3.2

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