Real Estate Facilities - Summary of Purchase Price Allocations for Acquisitions (Parenthetical) (Details) $ in Millions	9 Months Ended
Sep. 30, 2023 CAD ($)
ONT \| Etobicoke land
Business Acquisition [Line Items]
Development costs	$ 20
FL \| Bradenton land
Business Acquisition [Line Items]
Development costs	$ 5

The capitalized costs incurred during the period (excluded from amortization) to obtain access to proved reserves and to provide facilities for extracting, treating, gathering and storing the oil and gas.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479664/932-10-S99-1

Name:	us-gaap_DevelopmentCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration