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Debt - Unsecured Revolving Credit Facility (Details)	Jan. 23, 2015 USD ($) option	Jul. 06, 2016 USD ($)
Secured Revolving and Term Credit Facility
Line of Credit Facility [Line Items]
Write off of deferred financing costs	$ 1,300,000
Unsecured Revolving Credit Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Current borrowing capacity	800,000,000.0	$ 1,100,000,000.0
Maximum borrowing capacity	$ 1,250,000,000.00
Option to extend maturity, number | option	2
Extension period	6 months
Extension fee percent of outstanding commitments under revolving credit facility	0.075%
Maximum leverage ratio	60.00%
Maximum consolidated secured indebtedness to asset value	40.00%
Minimum tangible net worth	$ 745,400,000.0
Tangible net worth. minimum percent of net equity proceeds received	75.00%
Minimum adjusted EBITDA to consolidated fixed charges	1.50
Minimum net operating income to unsecured debt	1.75
Maximum ratio of unsecured debt to unencumbered asset value	60.00%
Maximum consolidated secured recourse debt to asset value	10.00%
Unsecured Revolving Credit Facility | Revolving Credit Facility | Eurodollar | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.875%
Unsecured Revolving Credit Facility | Revolving Credit Facility | Eurodollar | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.60%
Unsecured Revolving Credit Facility | Revolving Credit Facility | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.00%
Unsecured Revolving Credit Facility | Revolving Credit Facility | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.60%

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- Definition

Debt Instrument, Option to Extend, Number

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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