Investments in Real Estate (Pro Forma) (Details) - Europe Portfolio Acquisition - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Business Acquisition, Pro Forma Information [Abstract]
Total revenues	$ 2,199,358	$ 1,875,783
Net income (loss) available to common stockholders	$ 343,235	$ 239,201
Net income (loss) per share available to common stockholders - basic and diluted (in dollars per share)	$ 2.28	$ 1.72

Business Acquisition, Pro Forma Earnings Per Share, Basic and Diluted

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- References

No definition available.

+ Details

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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