Leases - Schedule of Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease revenues		$ 22,636	$ 33,242
Gain on sales-type leases	$ 33,800	33,834	0	$ 0
Sales-type lease interest income		1,928	0
Lease revenues relating to variable lease payments not included in measurement of the sales-type lease receivable		$ 1,690	$ 0