Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

SENIOR NOTES PAYABLE AND OTHER DEBT - Mortgages (Details) $ in Thousands, $ in Millions	Sep. 30, 2019 USD ($)	Sep. 30, 2019 CAD ($)	Dec. 31, 2018 USD ($)
Debt instruments
Unamortized fair value adjustment	$ 21,103		$ (1,163)
Mortgages
Debt instruments
Mortgage loans and other	$ 2,020,237		$ 1,127,697
Mortgages \| Le Groupe Maurice
Debt instruments
Mortgage loans and other		$ 1,200.0
Unamortized fair value adjustment		$ 16.6