The interest coverage ratio permitted under the terms of a senior credit facility covenant.

No definition available.

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- Definition

The leverage ratio permitted under the terms of a senior credit facility covenant.

+ References

No definition available.

+ Details

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- Definition

The secured leverage ratio permitted under the terms of a senior credit facility covenant.

+ References

No definition available.

+ Details

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- Definition

The covenant percentage permitted under the terms of a senior credit facility of unencumbered assets to unsecured indebtedness.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

+ Details

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Details

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- Details

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- Details

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UNSECURED SENIOR NOTES (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 17, 2013	Jun. 26, 2012
Senior notes 4.375% due December 15, 2023
Mortgage loans and Notes payable
Senior notes, principal amount		$ 250
Senior notes, interest rate (as a percent)		4.375%
Senior notes 4.375% due December 15, 2023 \| Maximum
Mortgage loans and Notes payable
Consolidated leverage ratio	0.60
Secured debt leverage ratio	0.40
Senior notes 4.375% due December 15, 2023 \| Minimum
Mortgage loans and Notes payable
Consolidated interest coverage ratio	1.50
Financial and customary covenant, minimum unencumbered asset (as a percent)	150.00%
Senior notes 4.80% due July 15, 2022
Mortgage loans and Notes payable
Senior notes, principal amount			$ 250
Senior notes, interest rate (as a percent)			4.80%
Senior notes 4.80% due July 15, 2022 \| Maximum
Mortgage loans and Notes payable
Consolidated leverage ratio	0.60
Secured debt leverage ratio	0.40
Senior notes 4.80% due July 15, 2022 \| Minimum
Mortgage loans and Notes payable
Consolidated interest coverage ratio	1.50
Financial and customary covenant, minimum unencumbered asset (as a percent)	150.00%