Schedule of Lease Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases
Interest receivable from sales type leases		$ 0.1	$ 0.1
Operating lease income	3.3	2.3	0.9
Variable income from sales type leases	0.1	0.7	0.3
Total	$ 3.4	$ 3.1	$ 1.3