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Real Estate and Lease Intangibles - Acquisitions and Dispositions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Real Estate [Abstract]
Net gain on sales of real estate properties	$ 87,726	$ 57,356	$ 124,433	$ 3,780,835
Net gain (loss) on sales of land parcels	$ (23)		$ 19,170	$ 11,722

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- Definition

The difference between the book value and the sale price of land parcels sold within the period.

+ References

No definition available.

+ Details

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- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.14(d))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

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- References

No definition available.

+ Details

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