Unaudited Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Statement of Cash Flows [Abstract]
Restricted cash	$ 0.2	$ 0.2	$ 0.2	$ 0.2