Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Supplemental Disclosures of Cash Flow Information and Non-Cash Financing and Investing Activities - Additional Information (Details) £ in Millions, $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2022 GBP (£)
Noncash or Part Noncash Acquisitions [Line Items]
Deferred employer only payroll tax payments, CARES Act					$ 31.1
Reimbursement for capitalizable costs of public infrastructure improvements		$ 8.1
Foreign currency translation gain (loss)	$ (130.1)	$ 1.5	$ (132.2)	$ (3.8)
GRP (Jersey) Holdco Limited
Noncash or Part Noncash Acquisitions [Line Items]
Cash balance	$ 1,876.4		$ 1,876.4			£ 1,544.7