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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deferred Financing Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized deferred financing costs	$ 15,963	$ 18,938
Amortization expense	6,120	5,918	$ 5,010
Accumulated amortization	22,098	16,269
Intangible lease assets and other assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized deferred financing costs	2,005	3,301
Mortgage and Other Indebtedness | Adjustments for New Accounting Pronouncement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Unamortized deferred financing costs	$ 15,963	$ 18,938

X

- Definition

Amount of accumulated amortization of debt issuance costs.

+ References

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Amount of amortization expense attributable to debt issuance costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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