Leases - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Lease income	$ 0	$ 0	$ 1,300,000	$ 0
Sales-type lease income			$ 3,200,000