Schedule of Accounts Receivable (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Receivables [Abstract]
Trade receivables	$ 36.2	$ 30.4
Less: long-term receivable recorded in other assets	(3.5)	(1.4)
Finance lease receivables	0.7	0.7
Other receivables		0.1
Allowance for doubtful accounts	(1.7)	(2.3)
Total accounts receivable, net	$ 31.7	$ 27.5