Debt - Schedule of Mortgages Payable (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Mortgages payable	$ 1,627,848
Mortgages payable
Debt Instrument [Line Items]
Variable interest rate	3.36%
Variable rate amount	$ 2,200	$ 308,918
Fixed interest rate	4.29%
Fixed rate amount	$ 1,125,648	1,535,734
Mortgages payable	1,127,848	1,844,652
Unamortized deferred financing costs and premium/ discount, net	(2,071)	(6,271)
Mortgages payable, net	$ 1,125,777	$ 1,838,381

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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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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