Discontinued Operations - Narrative (Details) - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions		12 Months Ended
	Nov. 30, 2020	Dec. 31, 2020	Dec. 31, 2022	Mar. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Contingent Consideration, Data License	$ 1.9
ALG Inc. [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Ownership Interest Prior to Disposal	100.00%
Disposal Group, Including Discontinued Operation, Consideration	$ 112.5			$ 7.5
Disposal Group, Including Discontinued Operation, Contingent Consideration, Asset		$ 7.5
Disposal Group, Including Discontinued Operation, Consideration, Net Of Working Capital Adjustments And Transaction Costs	111.5
Disposal Group, Including Discontinued Operation, Transaction Costs	$ 1.9
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		$ 92.5
Subsequent Event | Forecast [Member] | ALG Inc. [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Contingent Consideration, Asset			$ 15.0