Discontinued Operations - Summary of Sales Type and Direct Financing Leases Receivable Maturity (Parenthetical) (Details) $ in Millions	6 Months Ended
Jun. 30, 2021 USD ($)
Discontinued Operations And Disposal Groups [Abstract]
Sales-type lease, residual value of leased asset	$ 250.8
Sales type lease cash payments receivable	$ 608.4
Lessor, sales-type lease, option to terminate	The total future minimum lease payments assume that no early termination option is elected after the leased property is stabilized, which is currently expected between January 1, 2024 and January 1, 2025.

Amount of residual asset covered by residual value guarantee under sales-type lease. Excludes guarantee considered to be lease payments for lessor.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=121576215&loc=SL77919359-209981

Name:	us-gaap_SalesTypeLeaseResidualValueOfLeasedAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant