Aggregate sale price of assets.

No definition available.

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- Definition

Number of non operating assets.

+ References

No definition available.

+ Details

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- Definition

Number of properties sold attributable to the disposal group during the reporting period.

+ References

No definition available.

+ Details

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- Definition

Share-based compensation arrangement by share-based payment award, vesting share price.

+ References

No definition available.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Definition

General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Subsequent Events - Additional Information (Detail) $ / shares in Units, $ in Millions		2 Months Ended	12 Months Ended
	Feb. 09, 2016 $ / shares	Feb. 24, 2016 USD ($) Assets	Dec. 31, 2015 Property
Subsequent Event [Line Items]
Number of operating assets sold \| Property			29
Compensation fully earned and vested description			The 2013 VSEP awards earned resulted in the granting of common shares of the Company to participants on several measurement dates through December 31, 2015, and are subject to an additional service-based vesting schedule. As a result, in general, the total compensation available to participants under the 2013 VSEP will be fully earned and vested on December 31, 2019.
2016 VSEP [Member]
Subsequent Event [Line Items]
Compensation fully earned and vested description			The 2016 VSEP awards, if earned, may result in the granting of common shares of the Company and time-vested restricted stock units (“RSUs”) to participants on future measurement dates over three years, subject to an additional time-based vesting schedule. As a result, in general, the total compensation available to participants under the 2016 VSEP, if any, will be fully earned only after approximately seven years (the three-year performance period and the final four-year time-based vesting period for RSUs).
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of operating assets sold		16
Number of non-operating assets sold		2
Aggregate sale price of operating and non-operating assets \| $		$ 218.7
Subsequent Event [Member] \| 2016 VSEP [Member]
Subsequent Event [Line Items]
Vesting Period	7 years
Subsequent Event [Member] \| 2016 VSEP [Member] \| Minimum [Member]
Subsequent Event [Line Items]
Share price for vesting \| $ / shares	$ 17.41
Subsequent Event [Member] \| 2016 VSEP [Member] \| Maximum [Member]
Subsequent Event [Line Items]
Share price for vesting \| $ / shares	$ 25.35
Subsequent Event [Member] \| 2016 VSEP [Member] \| Performance Period [Member]
Subsequent Event [Line Items]
Vesting Period	3 years
Subsequent Event [Member] \| 2016 VSEP [Member] \| Additional Vesting [Member]
Subsequent Event [Line Items]
Vesting Period	4 years
Subsequent Event [Member] \| Joint Venture [Member]
Subsequent Event [Line Items]
Number of operating assets sold		11