Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 33.3	$ 41.2
Digital Media
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment on business	$ (27.4)		$ (27.4)

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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