Business Combination, Contingent Consideration Arrangements, Fair Value Adjustment

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Commitments and Contingencies [Line Items]

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Performance Based Commitments Maximum Consideration

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Real Estate Price Per Square Acre

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

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The amount of liability arising from an inherited contingency (as defined) which has been recognized as of the acquisition date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464

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Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(19))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(17))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Section S99
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-Subparagraph (SX 210.5-02(25))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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Commitments and Contingencies (Details) $ in Thousands, £ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2015 GBP (£)	Sep. 30, 2016 USD ($)	Sep. 30, 2016 SGD	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 11, 2012 USD ($)	Jul. 11, 2012 GBP (£)
Commitments and Contingencies [Line Items]
Change in fair value of contingent consideration	$ 0	$ (1,594)		$ 0		$ (44,276)
Commitments related to construction contracts	279,300			279,300
Convergence Business Park
Commitments and Contingencies [Line Items]
Sale price of building	$ 24,000			24,000
Real estate price, per square acre				225
29A International Business Park
Commitments and Contingencies [Line Items]
Additional performance based consideration earned (maximum)				$ 36,700	SGD 50,000,000.0
Contingent liability							$ 23,800	$ 12,600
Sentrum Portfolio
Commitments and Contingencies [Line Items]
Contingent liability									$ 87,600	£ 56.5
Reduction in fair value		$ (45,900)	£ (30.3)
Change in fair value of contingent consideration						$ (43,000)