Acquisitions - Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions | Nov. 02, 2021 | Jul. 02, 2021 | Feb. 28, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Net consideration | | | | $ 0.4 | $ 15.9 | |
Goodwill | | | | 681.9 | | $ 684.8 |
Urtasun | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Financial assets | $ 8.5 | | | | | |
Inventories | 3.4 | | | | | |
Property, plant and equipment | 3.2 | | | | | |
Deferred taxes | (5.9) | | | | | |
Financial liabilities | (7.2) | | | | | |
Total identifiable net assets | 21.7 | | | | | |
Cash consideration paid | 44.2 | | | | | |
Cash acquired | 4.8 | | | | | |
Net consideration | 39.4 | | | | | |
Goodwill | 22.5 | | | | | |
Urtasun | Customer relationship | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | 11.5 | | | | | |
Urtasun | Patents and acquired technology | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | 6 | | | | | |
Urtasun | Trademarks | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | $ 2.2 | | | | | |
Prevenio | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Financial assets | | $ 8.1 | | | | |
Inventories | | 0.2 | | | | |
Property, plant and equipment | | 4.1 | | | | |
Deferred taxes | | (15.5) | | | | |
Financial liabilities | | (3.4) | | | | |
Total identifiable net assets | | 52.7 | | | | |
Cash consideration paid | | 173.3 | | | | |
Cash acquired | | 3.5 | | | | |
Net consideration | | 169.8 | | | | |
Goodwill | | 120.6 | | | | |
Prevenio | Customer relationship | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | 41 | | | | |
Prevenio | Patents and acquired technology | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | 17.5 | | | | |
Prevenio | Trademarks | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | $ 0.7 | | | | |
AutoCoding Systems | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Financial assets | | | $ 2.9 | | | |
Inventories | | | 0.7 | | | |
Property, plant and equipment | | | 0 | | | |
Deferred taxes | | | (0.9) | | | |
Financial liabilities | | | (2.9) | | | |
Total identifiable net assets | | | 7.7 | | | |
Cash consideration paid | | | 16.8 | | | |
Cash acquired | | | 1.1 | | | |
Net consideration | | | 15.7 | | | |
Goodwill | | | 9.1 | | | |
AutoCoding Systems | Customer relationship | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | | 3.7 | | | |
AutoCoding Systems | Patents and acquired technology | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | | 3.4 | | | |
AutoCoding Systems | Trademarks | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | | $ 0.8 | | | |
Prevenio and AutoCoding Systems | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Financial assets | | | | 19.5 | | |
Inventories | | | | 4.3 | | |
Property, plant and equipment | | | | 7.3 | | |
Deferred taxes | | | | (22.3) | | |
Financial liabilities | | | | (13.5) | | |
Total identifiable net assets | | | | 82.1 | | |
Cash consideration paid | | | | 234.3 | | |
Cash acquired | | | | 9.4 | | |
Net consideration | | | | 224.9 | | |
Goodwill | | | | 152.2 | | |
Prevenio and AutoCoding Systems | Customer relationship | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | | | 56.2 | | |
Prevenio and AutoCoding Systems | Patents and acquired technology | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | | | 26.9 | | |
Prevenio and AutoCoding Systems | Trademarks | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Other intangible assets | | | | 3.7 | | |
2021 Acquisitions | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Goodwill expected to be tax deductible | | | | $ 0.7 | | |
2021 Acquisitions | Minimum | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Intangible assets useful lives | | | | 4 years | | |
2021 Acquisitions | Maximum | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Intangible assets useful lives | | | | 20 years | | |
2021 Acquisitions | Customer relationship | Weighted Average | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Intangible assets useful lives | | | | 14 years | | |
2021 Acquisitions | Patents and acquired technology | Weighted Average | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Intangible assets useful lives | | | | 8 years | | |
2021 Acquisitions | Trademarks | Weighted Average | | | | | | |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] | | | | | | |
Intangible assets useful lives | | | | 17 years | | |