Mortgage and Other Indebtedness - Consolidated Indebtedness by Type of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Participating Mortgage Loans [Line Items]
Principal	$ 1,205,554	$ 1,548,770
Unamortized Net Premiums	2,608	6,566
Unamortized Debt Issuance Costs	(9,578)	(12,035)
Total	1,198,584	1,543,301
Revolving credit facility
Participating Mortgage Loans [Line Items]
Principal	0	45,600
Unamortized Net Premiums	0	0
Unamortized Debt Issuance Costs	(2,882)	(3,796)
Total	(2,882)	41,804
Senior unsecured notes \| Fixed rate debt
Participating Mortgage Loans [Line Items]
Principal	550,000	550,000
Unamortized Net Premiums	0	0
Unamortized Debt Issuance Costs	(4,289)	(4,864)
Total	545,711	545,136
Unsecured term loan
Participating Mortgage Loans [Line Items]
Principal	250,000	345,000
Unamortized Net Premiums	0	0
Unamortized Debt Issuance Costs	(1,912)	(2,470)
Total	248,088	342,530
Mortgages notes payable \| Fixed rate debt
Participating Mortgage Loans [Line Items]
Principal	332,603	534,679
Unamortized Net Premiums	2,608	6,566
Unamortized Debt Issuance Costs	(251)	(584)
Total	334,960	540,661
Mortgages notes payable \| Variable rate debt
Participating Mortgage Loans [Line Items]
Principal	72,951	73,491
Unamortized Net Premiums	0	0
Unamortized Debt Issuance Costs	(244)	(321)
Total	$ 72,707	$ 73,170

Long-term Debt, Principal Balance

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- Definition

Amount, after accumulated amortization, of debt premium.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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