Number of Real Estate Projects Subject to Ownership from Noncontrolling Interests

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Area of a real estate property.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The cash outflow associated with the purchase of noncontrolling interest during the period.

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Noncontrolling interests (Details) $ in Thousands	3 Months Ended		9 Months Ended
Noncontrolling interests (Details) $ in Thousands	Sep. 30, 2015 USD ($) ft² property	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) ft² property	Sep. 30, 2014 USD ($)
Noncontrolling interests
Income (Loss) from Continuing Operations Attributable to Parent	$ 39,529	$ 34,775	$ 102,255	$ 108,650
(Loss) income from discontinued operations, net	$ 0	$ (180)	$ (43)	(489)
Area of Real Estate Property \| ft²	19,943,739		19,943,739
Payable for purchase of noncontrolling interest			$ 51,887	$ 0
Purchase of noncontrolling interest			$ (113,967)
Noncontrolling Interests
Noncontrolling interests
Number of projects subject to ownership from noncontrolling interests \| property	4		4
Purchase of noncontrolling interest			$ (65,504)
Alexandria Technology Square [Member]
Noncontrolling interests
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	10.00%		10.00%
Payable for purchase of noncontrolling interest	$ 54,000		$ 108,300
Second Installment Payment [Member] \| Alexandria Technology Square [Member]
Noncontrolling interests
Payable for purchase of noncontrolling interest			54,000
Installment Payment [Member] \| Alexandria Technology Square [Member]
Noncontrolling interests
Payable for purchase of noncontrolling interest			$ 54,300
Alexandria Technology Square [Member]
Noncontrolling interests
Area of Real Estate Property \| ft²	1,181,635		1,181,635