HGR Liquidating Trust 10-K 30 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Share data in Millions, unless otherwise specified	Dec. 31, 2014	Mar. 20, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	Hines Global REIT, Inc.
Entity Central Index Key	1453818
Document Type	10-K
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Public Float			$0
Entity Common Stock, Shares Outstanding		271.5

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS
Investment property, net	$2,964,699	$2,799,850
Investment in unconsolidated entities	2,873	3,573
Cash and cash equivalents	143,609	124,859
Restricted cash	19,955	12,283
Derivative instruments	14,661	5,294
Tenant and other receivables, net	64,212	48,247
Intangible lease assets, net	743,465	695,724
Deferred leasing costs, net	59,902	43,999
Deferred financing costs, net	12,879	15,874
Real estate loans receivable, net	74,400	43,237
Other assets	25,939	10,279
Total assets	4,126,594	3,803,219
Liabilities:
Accounts payable and accrued expenses	91,007	72,941
Due to affiliates	14,106	16,419
Intangible lease liabilities, net	84,385	68,355
Other liabilities	43,633	33,875
Derivative instruments	9,848	9,817
Distributions payable	17,558	14,143
Notes payable to affiliates	17,601	37,561
Notes payable	2,112,359	1,935,901
Total liabilities	2,390,497	2,189,012
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred shares, $.001 par value; 500,000 preferred shares authorized, none issued or outstanding as of December 31, 2014 and 2013
Common shares, $.001 par value; 1,500,000 common shares authorized as of December 31, 2014 and 2013; 270,657 and 229,035 common shares issued and outstanding as of December 31, 2014 and 2013, respectively	271	229
Additional paid-in capital	2,014,113	1,800,936
Accumulated deficit	-201,227	-206,305
Accumulated other comprehensive income (loss)	-123,769	-23,921
Total stockholders’ equity	1,689,388	1,570,939
Noncontrolling interests	46,709	43,268
Total equity	1,736,097	1,614,207
Total liabilities and equity	$4,126,594	$3,803,219

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Stockholders’ equity:
Preferred stock, par value (in dollars per share)	$0.00	$0.00
Preferred stock, shares authorized	500,000,000	500,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued	270,657,000	229,035,000
Common stock, shares outstanding	270,657,000	229,035,000

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues:
Rental revenue	$425,969	$298,943	$174,794
Other revenue	30,295	23,919	12,446
Total revenues	456,264	322,862	187,240
Expenses:
Property operating expenses	85,134	65,716	40,511
Real property taxes	42,273	28,638	16,576
Property management fees	9,694	7,739	3,952
Depreciation and amortization	193,870	140,187	84,747
Acquisition related expenses	29,278	42,747	12,633
Asset management and acquisition fees	53,069	60,490	22,006
General and administrative expenses	6,782	5,344	3,590
Total expenses	420,100	350,861	184,015
Income (loss) before other income (expenses) and benefit (provision) for income taxes	36,164	-27,999	3,225
Other income (expenses):
Gain (loss) on derivative instruments	7,322	9,909	1,398
Gain (loss) on sale of real estate investments	64,003	0	0
Foreign currency gains (losses)	-13,074	-6,458	672
Interest expense	-78,273	-60,968	-37,915
Interest income	506	454	227
Income (loss) before benefit (provision) for income taxes	16,648	-85,062	-32,393
Benefit (provision) for income taxes	-5,806	-701	-1,147
Net income (loss)	10,842	-85,763	-33,540
Net (income) loss attributable to noncontrolling interests	-5,764	-3,173	-939
Net income (loss) attributable to common stockholders	5,078	-88,936	-34,479
Basic and diluted income (loss) per common share (in dollars per share)	$0.02	($0.48)	($0.30)
Weighted average number of common shares outstanding (shares)	263,323	184,412	113,578
Net comprehensive income (loss):
Net income (loss)	10,842	-85,763	-33,540
Other comprehensive income (loss):
Foreign currency translation adjustment	-101,397	-14,840	12,301
Net comprehensive income (loss):	-90,555	-100,603	-21,239
Net comprehensive (income) loss attributable to noncontrolling interests	-4,215	-3,642	-2,111
Net comprehensive income (loss) attributable to common stockholders	($94,770)	($104,245)	($23,350)

Consolidated_Statements_of_Equ

Consolidated Statements of Equity (USD $)	Total	Hines Global REIT, Inc. Common Stock	Hines Global REIT, Inc. Additional Paid-in Capital	Hines Global REIT, Inc. Accumulated Deficit	Hines Global REIT, Inc. Accumulated Other Comprehensive Income (Loss)	Total Stockholders' Equity	Noncontrolling Interests
In Thousands, unless otherwise specified
Beginning balance at Dec. 31, 2011		$90	$738,616	($82,890)	($19,741)	$636,075	$33,329
Beginning balance, shares at Dec. 31, 2011		90,023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares, shares		60,019
Issuance of common shares		60	596,683			596,743
Contributions from noncontrolling interest							8,082
Distributions declared			-73,975			-73,975	-293
Distributions on CPEC							-2,866
Redemption of common shares, shares		-1,153
Redemption of common shares		-1	-11,323			-11,324
Selling commissions and dealer manager fees			-54,552			-54,552
Issuer costs			-5,710			-5,710
Net income (loss)	-33,540			-34,479		-34,479	939
Foreign currency translation adjustment	-12,301				-11,129	-11,129	-1,172
Ending balance at Dec. 31, 2012		149	1,189,739	-117,369	-8,612	1,063,907	40,363
Ending balance, shares at Dec. 31, 2012		148,889
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares, shares		82,085
Issuance of common shares		82	833,748			833,830
Contributions from noncontrolling interest							2,594
Distributions declared			-119,764			-119,764	-544
Distributions on CPEC							-2,787
Redemption of common shares, shares		-1,939
Redemption of common shares		-2	-20,071			-20,073
Selling commissions and dealer manager fees			-75,579			-75,579
Issuer costs			-7,137			-7,137
Net income (loss)	-85,763			-88,936		-88,936	3,173
Foreign currency translation adjustment	14,840				22,794	22,794	-469
Foreign currency translation adjustment reclassified into earnings					7,485	7,485
Ending balance at Dec. 31, 2013	1,614,207	229	1,800,936	-206,305	-23,921	1,570,939	43,268
Ending balance, shares at Dec. 31, 2013	229,035	229,035
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares, shares		45,477
Issuance of common shares		45	463,514			463,559
Contributions from noncontrolling interest							3,894
Distributions declared			-171,085			-171,085	-324
Distributions on CPEC							-4,344
Redemption of common shares, shares		-3,855
Redemption of common shares		-3	-40,922			-40,925
Selling commissions and dealer manager fees			-36,355			-36,355
Issuer costs			-1,975			-1,975
Net income (loss)	10,842			5,078		5,078	5,764
Foreign currency translation adjustment	101,397				105,570	105,570	1,549
Foreign currency translation adjustment reclassified into earnings					5,722	5,722
Ending balance at Dec. 31, 2014	$1,736,097	$271	$2,014,113	($201,227)	($123,769)	$1,689,388	$46,709
Ending balance, shares at Dec. 31, 2014	270,657	270,657

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$10,842	($85,763)	($33,540)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization	209,957	153,203	93,526
Foreign currency (gains) losses	13,074	6,458	-672
(Gain) loss on sale of real estate investments	-64,003	0	0
(Gain) loss on derivative instruments	-7,322	-9,909	-1,398
Changes in assets and liabilities:
Change in other assets	-2,440	-3,965	-1,497
Change in tenant and other receivables	-26,505	-15,539	-15,355
Change in deferred leasing costs	-23,343	-38,168	-6,542
Change in accounts payable and accrued expenses	18,242	27,078	4,221
Change in other liabilities	10,850	-121	-431
Change in due to affiliates	3,020	7,250	538
Net cash from operating activities	142,372	40,524	38,850
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of real estate investments	248,120	0	0
Investments in acquired properties and lease intangibles	-729,674	-1,669,620	-593,428
Capital expenditures at operating properties and developments	-51,671	-56,148	-31,219
Contributions to unconsolidated entities	0	0	-3,573
Distributions from unconsolidated entities	700	0	0
Deposits on investment property	-15,000	0	-7,458
Investments in real estate loans receivable	-50,576	-20,022	-33,316
Proceeds from collection of real estate loans receivable	19,447	12,397	3,107
Change in restricted cash	-9,188	-4,621	-286
Net cash from investing activities	-587,842	-1,738,014	-666,173
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	378,804	772,693	556,657
Contribution from noncontrolling interest	3,894	2,594	5,082
Redemption of common shares	-37,708	-18,713	-11,099
Payment of issuer costs	-2,457	-7,121	-5,675
Payment of selling commissions and dealer manager fees	-37,011	-77,018	-52,660
Distributions paid to stockholders and noncontrolling interests	-81,901	-57,277	-39,493
Proceeds from notes payable	1,063,094	2,118,606	749,076
Proceeds from related party notes payable	0	8,273	19,628
Payments on related party notes payable	-20,770	0	0
Payments on notes payable	-788,178	-1,010,807	-557,588
Change in security deposit liability	1,157	1,475	542
Deferred financing costs paid	-4,387	-10,119	-5,504
Payments related to interest rate contracts	-133	-4,330	-1,795
Net cash from financing activities	474,404	1,718,256	657,171
Effect of exchange rate changes on cash	-10,184	6,695	1,060
Net change in cash and cash equivalents	18,750	27,461	30,908
Cash and cash equivalents, beginning of period	124,859	97,398	66,490
Cash and cash equivalents, end of period	$143,609	$124,859	$97,398

Organization

Organization	12 Months Ended
	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION	ORGANIZATION
	Hines Global REIT, Inc. (the “Company”), was formed as a Maryland corporation on December 10, 2008 under the General Corporation Law of the state of Maryland for the purpose of engaging in the business of investing in and owning commercial real estate properties and other real estate investments. The Company conducts substantially all of its operations through Hines Global REIT Properties, LP (the “Operating Partnership”) and subsidiaries of the Operating Partnership. Beginning with its taxable year ended December 31, 2009, the Company operated and intends to continue to operate in a manner to qualify as a real estate investment trust (“REIT”) for federal income tax purposes. The business of the Company is managed by Hines Global REIT Advisors LP (the “Advisor”), an affiliate of Hines Interests Limited Partnership (“Hines”), pursuant to the Advisory Agreement between the Company, the Advisor and the Operating Partnership.
	On August 5, 2009, Hines Global commenced its initial public offering of common stock for sale to the public (the “Initial Offering”) which expired on February 1, 2013. Hines Global commenced a follow-on offering effective February 4, 2013, through which it offered up to $3.5 billion in shares of common stock (the “Second Offering”), and ceased offering primary shares pursuant to the Second Offering on April 11, 2014. Hines Global continues to offer up to $500.0 million of shares of its common stock under its distribution reinvestment plan, pursuant to an offering which commenced on April 24, 2014 (the “DRP Offering”). Collectively, through its public offerings, the Company received gross offering proceeds of $2.8 billion from the sale of 278.4 million shares from inception through December 31, 2014.
	The Company made its initial real estate investment in June 2010 and owned interests in 40 real estate investments as of December 31, 2014. The Company’s investments consisted of the following types of investments:
	•	Domestic office investments (11 investments)
	•	Domestic other investments (10 investments)
	•	International office investments (10 investments)
	•	International other investments (9 investments)
	Discussed below are additional details related to the Company’s investments in multi-family projects that have not been completed and investments in real estate related debt, each of which are included in the Company’s domestic other investments segment. All other investments are operating real estate investments.
	•	Aviva Coral Gables JV (formerly known as the Ponce & Bird JV) — 83% interest in a joint venture that was formed in July 2012 to invest in a multi-family development project in Miami, Florida. The estimated total cost of the project is expected to be $66.0 million and the project will consist of 276 units upon completion. Affiliates of Hines own the remaining 17% interest in this joint venture. Construction began in April 2013 and is expected to be completed in April 2015.
	•	Flagship Capital JV — 97% interest in a joint venture with Flagship Capital GP, which was formed to provide real estate loans. The joint venture has ten loans receivable, totaling $59.1 million, outstanding as of December 31, 2014. The Company is not affiliated with Flagship Capital GP. See Note 5 — Real Estate Loans Receivable for additional information regarding these loans receivable.
	•	The Rim Loan Receivable — a variable interest entity ("VIE") that that was formed to provide $29.8 million in construction financing to the developer of four additional retail parcels at The Rim, a 656,371 square-foot outdoor retail center located in San Antonio, Texas. As of December 31, 2014, the Company had loaned $11.3 million to the developer. The Company is not affiliated with the developer of the project.
	Joint Ventures, Equity Method Investments and Noncontrolling Interests
	On January 7, 2009, the Company and Hines Global REIT Associates Limited Partnership (“HALP”), an affiliate of the Advisor, formed Hines Global REIT Properties, LP (the “Operating Partnership”). The Company conducts most of its operations through the Operating Partnership. On January 14, 2009, the Company and HALP made initial capital contributions to the Operating Partnership of $10,000 and $190,000, respectively and accordingly, HALP owned a 95.0% noncontrolling interest in the Operating Partnership. As of December 31, 2014 and 2013, HALP owned a 0.01% and 0.01% interest in the Operating Partnership, respectively.
	The Brindleyplace JV
	In June 2010, the Operating Partnership and Moorfield Real Estate Fund II GP Ltd. (“Moorfield”) formed Hines Moorfield UK Venture I S.A.R.L., (the “Brindleyplace JV”) and, in July 2010, the Brindleyplace JV acquired several properties located in Birmingham, England (the “Brindleyplace Project”).  The Company owns a 60% interest in the Brindleyplace JV and Moorfield holds the remaining 40% interest.
	The Company has concluded its investment in the Brindleyplace JV does not qualify as a variable interest entity (“VIE”) under the Financial Accounting Standards Board (the “FASB”) Accounting Standards Codification (“ASC” or the “Codification”) 810 “Consolidation.” Based on the Company’s majority voting interest as well as certain additional voting rights and other factors, the Company has consolidated the Brindleyplace JV and its wholly-owned subsidiaries in its financial statements. See Note 10 — Noncontrolling Interests for additional information regarding our noncontrolling interests in the Brindleyplace JV.
	Consolidated VIEs
	The Flagship JV
	In June 2011, a wholly-owned subsidiary of the Operating Partnership entered into a Limited Partnership Agreement (as amended) with Flagship Capital, GP for the formation of Flagship Capital Partners Fund, LP (the “Flagship JV”) for the purpose of originating real estate loans. The Company owns a 97% interest in the Flagship JV and Flagship Capital, GP owns the remaining 3% interest. Flagship Capital, GP serves as the general partner and will manage the day-to-day activities of the Flagship JV. Both partners have equal voting rights and distributions from the Flagship JV will initially be paid to the fund partners based on their pro rata ownership. Since the voting rights of each of the partners are disproportionate to their ownership interests, the Company has concluded that the Flagship JV qualifies as a VIE under ASC 810. Further, the Company has determined that it is the primary beneficiary due to its ability to exercise significant control and influence over the Flagship JV as well as certain other factors. As a result, the Company has consolidated the Flagship JV and its wholly-owned subsidiaries in its financial statements. See Note 10 — Noncontrolling Interests for additional information regarding our noncontrolling interests in the Flagship JV.
	The WaterWall Place JV
	In December 2011, a wholly-owned subsidiary of the Operating Partnership entered into a Limited Partnership Agreement with an affiliate of Hines for the formation of Hines One WaterWall Holdings LP (the “WaterWall Place JV”), a Delaware limited liability company, for the purpose of developing a multi-family project in Houston, Texas. Hines serves as the initial general partner and as the development partner and the subsidiary of the Operating Partnership is the initial limited partner. The Company has a 93% interest in this joint venture . An affiliate of Hines owns the remaining 7% interest in this joint venture. The Company has concluded its investment in the WaterWall Place JV qualifies as a VIE under ASC 810. Further, the Company has determined that it is the primary beneficiary since it has greater exposure to the variability of One WaterWall JV’s economic performance as well as certain other factors. As a result, the Company has consolidated the WaterWall Place JV and its wholly-owned subsidiaries in its financial statements. See Note 10 — Noncontrolling Interests for additional information regarding our noncontrolling interests in the WaterWall Place JV.
	The Aviva Coral Gables JV (formerly known as the Ponce & Bird JV)
	In July 2012, a wholly-owned subsidiary of the Operating Partnership entered into a Limited Partnership Agreement with an affiliate of Hines for the formation of Hines Ponce & Bird Holdings LP , a Delaware limited liability company, for the purpose of developing a multi-family project in Miami, Florida. Hines serves as the initial general partner and as the development partner and the subsidiary of the Operating Partnership is the initial limited partner. The Company has concluded its investment in the Aviva Coral Gables JV (formerly known as the Ponce & Bird JV) qualifies as a VIE under ASC 810. Further, the Company has determined that it is the primary beneficiary since it has greater exposure to the variability of Aviva Coral Gables's economic performance as well as certain other factors. As a result, the Company has consolidated the Aviva Coral Gables JV and its wholly-owned subsidiaries in its financial statements. See Note 10 — Noncontrolling Interests for additional information regarding our noncontrolling interests in the Aviva Coral Gables JV (formerly known as the Ponce & Bird JV).
	A summary of our consolidated VIEs is as follows (in thousands):
			December 31, 2014			December 31, 2013
	Maximum risk of loss (1)		$	47,986		$	25,278
	Assets held by VIEs		$	188,264		$	126,528
	Assets held as collateral for debt		$	188,264		$	126,528
	Liabilities held by VIEs		$	131,691		$	94,675
	-1	Represents the Company's contributions, net of distributions, made to the consolidated VIEs.
	Restrictions on the use of these assets are significant because they serve as collateral for the VIE’s debt, and the Company is generally required to obtain its partners’ approval in accordance with the respective joint venture agreements for any major transactions. Transactions with these joint ventures on the Company’s consolidated financial statements primarily relate to contributions for the funding of loans receivable at the Flagship JV, and contributions to the WaterWall Place JV for the funding of the repayment of the construction loan to an affiliate. The Company and its partners are subject to the provisions of the joint venture agreements which include provisions for when additional contributions may be required. During the year ended December 31, 2014, the Company made capital contributions of $22.7 million, net of distributions received of $6.5 million in accordance with the Company’s respective joint venture agreements. During the year ended December 31, 2013, the Company made capital contributions of $4.9 million, net of received distributions of $12.8 million in accordance with the Company’s respective joint venture agreements.
	Unconsolidated VIEs
	The Rim Loan Receivable
	In February 2014, the Company completed the acquisition of The Rim, a 656,371 square-foot outdoor retail center located in San Antonio, Texas. In August 2014, the Company entered into a loan agreement with Central Rim LLC (the “Rim Borrower”) to provide $29.8 million of construction financing for the development of four additional retail parcels at The Rim. Following the completion of the development of each parcel, the Company will have certain rights or obligations to purchase each parcel. As a result of these purchase rights or obligations, and due to the fact that the Rim Borrower lacks the obligation to absorb losses upon the achievement of certain metrics, the Company has determined that the entity that owns these parcels is considered to be a VIE. Additionally, the Rim Borrower was determined to be the primary beneficiary of this VIE since it is the party most directly responsible for the success of the entity. The Company has funded $11.3 million through this agreement as of December 31, 2014. The Company's maximum exposure to loss is the amount borrowed under the facility agreement, plus any unpaid interest. The most significant source of the Company's exposure to the VIE is the variability related to the Rim Borrower's credit risk and its ability to repay the amounts funded.
	The @1377 Equity Method Investment
	In November 2011, a wholly-owned subsidiary of the Operating Partnership entered into a loan agreement with an affiliate of Hines to provide pre-construction financing for the development of a multi-family project in Atlanta, Georgia to be marketed as @1377. In June 2012, this loan was repaid. Subsequent to the initial loan being repaid, the Company provided a preferred equity investment in the project of $3.6 million, representing a 51.7% ownership in the project, for the year ended December 31, 2012. The Company has concluded that @1377 qualifies as a VIE. @1377 is financed with a $23.3 million secured loan made by Cadence Bank, N.A., which is solely guaranteed by the Company’s joint venture partner (the “JV Partner”), and a $3.2 million mezzanine loan commitment plus accrued interest made by the Company, of which $4.0 million was outstanding at December 31, 2014. The JV Partner is the manager of the project, allowing the JV Partner to direct the activities of the VIE that most significantly impact the VIE’s financial performance. Based upon the loan guarantees and the JV Partner’s ability to direct the activities that significantly impact the economic performance of the VIE, the Company has determined that it is not the primary beneficiary of this VIE and will account for its preferred equity investment in the project as an equity method investment. The Company’s maximum loss exposure is expected to change in future periods as a result of additional contributions made and any additional borrowings under its loan receivable with the VIE. Other than the initial capital contributions provided by the Company, the Company has not provided any additional subordinated financial support.
	The table below presents the activity of the Company's unconsolidated entities as of and for the periods presented (in thousands):
			Years Ended December 31,
	Investment in Unconsolidated Affiliates		2014		2013			2012
	Beginning balance		3,573		3,573			—
	Contributions		—		—			3,573
	Distributions		(700	)	—			—
	Ending balance		2,873		3,573			3,573
	The table below summarizes the Company’s maximum loss exposure related to its unconsolidated VIEs as of December 31, 2014 and December 31, 2013, which is equal to the carrying value of its investment in the unconsolidated VIEs included in the balance sheet line item “Investment in unconsolidated entities” and the Company’s outstanding loan receivable balance held by the VIEs which is included in the balance sheet line item “Real estate loans receivable” in the condensed consolidated balance sheets as of December 31, 2014 and December 31, 2013 (in thousands).
	Period		Investment in Unconsolidated VIEs (1)			Maximum Risk of Loss (2)
	December 31, 2014		$	2,873		$	18,159
	December 31, 2013		$	3,573		$	7,246
	-1	Represents the Company’s contributions, net of distributions, made to its VIEs.
	-2	Maximum Risk of Loss is equal to the amount outstanding under the loan plus the Company’s contributions made to the VIEs as of the date indicated. See Note 5 — Real Estate Loans Receivable for additional information regarding the loan.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Use of Estimates
	The Company’s consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The preparation of the consolidated financial statements requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities and contingencies as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The Company evaluates its assumptions and estimates on an ongoing basis. The Company bases its estimates on historical experience and on various other assumptions that the Company believes to be reasonable under the circumstances. Additionally, application of the Company’s accounting policies involves exercising judgments regarding assumptions as to future uncertainties. Actual results may differ from these estimates under different assumptions or conditions.
	Basis of Presentation
	The consolidated financial statements of the Company include the accounts of Hines Global REIT, Inc., the Operating Partnership and its wholly-owned subsidiaries and the joint ventures as well as amounts related to noncontrolling interests. All intercompany balances and transactions have been eliminated in consolidation.
	The Company evaluates the need to consolidate joint ventures in accordance with GAAP. In accordance with GAAP, the Company will consolidate joint ventures that are determined to be variable interest entities for which it is the primary beneficiary. Further, partially owned real estate joint ventures over which the Company has a controlling financial interest are consolidated in its financial statements. In determining if the Company has a controlling financial interest, it considers factors such as ownership interest, authority to make decisions, kick-out rights and substantive participating rights. Management continually analyzes and assesses reconsideration events, including changes in these factors, to determine if the consolidation treatment remains appropriate. Partially owned real estate joint ventures where the Company does not have a controlling financial interest, but has the ability to exercise significant influence, are accounted for using the equity method.
	The Company’s investments in partially owned real estate joint ventures are reviewed for impairment periodically if events or circumstances change indicating that the carrying amount of its investments may not be recoverable. In such an instance, the Company will record an impairment charge if it determines that a decline in the value of an investment below its fair value is other than temporary. The Company’s analysis will be dependent on a number of factors, including the performance of each investment, current market conditions, and its intent and ability to hold the investment to full recovery. Based on the Company’s analysis of the facts and circumstances at each reporting period, no impairment was recorded related to its investments in unconsolidated, partially owned real estate joint ventures for the years ended December 31, 2014, 2013, and 2012. However, if market conditions deteriorate in the future and result in lower valuations or reduced cash flows of the Company’s investments, impairment charges may be recorded in future periods.
	International Operations
	The British pound (“GBP”) is the functional currency for the Company’s subsidiaries operating in the United Kingdom, the Russian rouble (“RUB”) is the functional currency for the Company’s subsidiaries operating in Russia, the Polish zloty (“PLN”) is the functional currency for the Company’s subsidiaries operating in Poland, the Australian dollar (“AUD”) is the functional currency for the Company’s subsidiaries operating in Australia and the Euro (“EUR”) is the functional currency for the Company’s subsidiaries operating in Germany and France.
	These subsidiaries have translated their financial statements into U.S. dollars for reporting purposes. Assets and liabilities are translated at the exchange rate in effect as of the balance sheet date while income statement accounts are translated using the average exchange rate for the period and significant nonrecurring transactions using the rate on the transaction date. Gains or losses resulting from translation are included in accumulated other comprehensive income (loss) within stockholders’ equity. Foreign currency transaction gains and losses are recorded in foreign currency gains (losses) on the consolidated statement of operations and result from the effect of changes in exchange rates on transactions denominated in currencies other than a subsidiary’s functional currency, including transactions between consolidated subsidiaries. An exception is made where an intercompany loan or advance is deemed to be of a long-term investment nature, in which instance foreign currency transaction gains or losses are included as currency translation adjustments and are reported in the consolidated statement of equity as accumulated other comprehensive gains or losses. During the year ended December 31, 2013, an intercompany loan agreement with a consolidated subsidiary in Russia was amended to change the functional currency of the loan and as a result the Company recognized $1.3 million of accumulated other comprehensive loss into earnings. Additionally, an intercompany loan with a consolidated subsidiary in Australia was repaid and as a result, the Company recognized $6.2 million of accumulated other comprehensive loss into earnings. The Company disposed of its investment in 144 Montague in November 2014 as well as its investment in Stonecutter Court in December 2014. Upon the disposal of these properties, the Company realized a loss of $5.7 million related to the currency translation adjustment, which was included in the gain (loss) on sale of real estate in its consolidated statement of operations.
	Investment Property and Lease Intangibles
	Real estate assets acquired by the Company are stated at fair value at the date of acquisition less accumulated depreciation. Depreciation is computed using the straight-line method. The estimated useful lives for computing depreciation are generally 10 years for furniture and fixtures, 15-20 years for electrical and mechanical installations and 40 years for buildings. Major replacements that extend the useful life of the assets are capitalized and maintenance and repair costs are expensed as incurred.
	Acquisitions of properties are accounted for utilizing the acquisition method and, accordingly, are recorded at the estimated fair values of the assets acquired and liabilities assumed. The results of operations of acquired properties are included in the Company’s results of operations from their respective dates of acquisition. Estimates of fair values are based upon estimates of future cash flows and other valuation techniques that the Company believes are similar to those used by market participants and are used to record the purchase of identifiable assets acquired, such as land, buildings and improvements, equipment and identifiable intangible assets related to in-place leases and liabilities assumed, such as amounts related to acquired out-of-market leases, asset retirement obligations, mortgage notes payable. Values of buildings and improvements are determined on an as if vacant basis. Initial valuations are subject to change until such information is finalized, no later than 12 months from the acquisition date. Acquisition-related costs such as transaction costs and acquisition fees paid to the Advisor are expensed as incurred.
	The estimated fair value of acquired in-place leases are the costs the Company would have incurred to lease the properties to the occupancy level of the properties at the date of acquisition. Such estimates include the fair value of leasing commissions, legal costs and other direct costs that would be incurred to lease the properties to such occupancy levels. Additionally, the Company evaluates the time period over which such occupancy levels would be achieved. Such evaluation will include an estimate of the net market-based rental revenues and net operating costs (primarily consisting of real estate taxes, insurance and utilities) that would be incurred during the lease-up period. Acquired in-place leases as of the date of acquisition are amortized over the remaining lease terms. Should a tenant terminate its lease, the unamortized portion of the in-place lease value is charged to amortization expense.
	Acquired out-of-market lease values (including ground leases) are recorded based on the present value (using a discount rate that reflects the risks associated with the lease acquired) of the difference between the contractual amounts paid pursuant to the in-place leases and management’s estimate of fair market value lease rates for the corresponding in-place leases. The capitalized out-of-market lease values are amortized as adjustments to rental revenue (or ground lease expense, as applicable) over the remaining terms of the respective leases, which include periods covered by bargain renewal options. Should a tenant terminate its lease, the unamortized portion of the out-of-market lease value is charged to rental revenue.
	Management estimates the fair value of assumed mortgage notes payable based upon indications of then-current market pricing for similar types of debt with similar maturities. Assumed mortgage notes payable are initially recorded at their estimated fair value as of the assumption date, and the difference between such estimated fair value and the outstanding principal balance of the note will be amortized over the life of the mortgage note payable.
	Real estate assets are reviewed for impairment each reporting period if events or changes in circumstances indicate that the carrying amount of the individual property may not be recoverable. In such an event, a comparison will be made of the current and projected operating cash flows and expected proceeds from the eventual disposition of each property on an undiscounted basis to the carrying amount of such property. If the carrying amount exceeds the undiscounted cash flows, it would be written down to the estimated fair value to reflect impairment in the value of the asset. The determination of whether investment property is impaired requires a significant amount of judgment by management and is based on the best information available to management at the time of the evaluation. No impairment charges were recorded during the years ended December 31, 2014, 2013, and 2012.
	Cash and Cash Equivalents
	The Company considers all short-term, highly liquid investments that are readily convertible to cash with an original maturity of three months or less at the time of purchase to be cash equivalents.
	Restricted Cash
	The Company has restricted cash primarily related to certain escrow accounts required by several of the Company’s mortgage agreements.
	Concentration of Credit Risk
	As of December 31, 2014, the Company had cash and cash equivalents and restricted cash deposited in certain financial institutions in excess of federally insured levels. Management regularly monitors the financial stability of these financial institutions in an effort to manage the Company’s exposure to any significant credit risk in cash and cash equivalents or restricted cash.
	In addition, as of December 31, 2014, the Company had $84.5 million of cash and cash equivalents deposited in certain financial institutions located in the United Kingdom, Russia, Poland, Australia, Germany, and France. Management regularly monitors the financial stability of these financial institutions in an effort to manage its exposure to any significant credit risk in cash and cash equivalents.
	Tenant and Other Receivables
	Receivable balances consist primarily of base rents, tenant reimbursements and receivables attributable to straight-line rent.  An allowance for the uncollectible portion of tenant and other receivables is determined based upon an analysis of the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area in which the property is located.  Tenant and other receivables are shown at cost in the consolidated balance sheets, net of allowance for doubtful accounts of $1.9 million and $2.0 million at December 31, 2014 and 2013, respectively.
	Deferred Leasing Costs
	Direct leasing costs, primarily consisting of third-party leasing commissions, tenant inducements and legal costs are capitalized and amortized over the life of the related lease. Tenant inducement amortization is recorded as an offset to rental revenue and the amortization of other direct leasing costs is recorded in amortization expense.
	Tenant inducement amortization was $4.2 million, $1.7 million and $0.5 million for the years ended December 31, 2014, 2013, and 2012, respectively, and was recorded as an offset to rental revenue. In addition, the Company recorded $1.8 million, $0.7 million and $0.2 million as amortization expense related to other direct leasing costs for the years ended December 31, 2014, 2013, and 2012, respectively.
	Deferred Financing Costs
	Deferred financing costs consist of direct costs incurred in obtaining debt financing, including the financing fees paid to the Advisor (see Note 9 – Related Party Transactions). These costs are amortized into interest expense on a straight-line basis, which approximates the effective interest method, over the terms of the obligations.  For the years ended December 31, 2014, 2013, and 2012, $6.9 million, $5.2 million and $3.4 million, were amortized into interest expense, respectively.
	Real Estate Loans Receivable
	Real estate loans receivable are shown at cost, net of any applicable allowance for uncollectibility and net of deferred loan origination fees. The Company defers certain loan origination fees and amortizes them as an adjustment of yield over the term of the related real estate loan receivable. The related amortization of the deferred loan origination fees are recorded in other revenue in the accompanying consolidated statement of operations and comprehensive income (loss). An allowance for the uncollectible portion of the real estate loans receivable is determined based upon an analysis of the economic conditions in the area in which the property is located and credit quality indicators which include: borrower’s payment history, the financial condition of the borrower, and business conditions in the industry in which the borrower operates.
	Additionally, a real estate loan receivable is considered to be impaired, when based upon current events, it is probable that we will be unable to collect all amounts due according to the existing contractual terms. If a real estate loan receivable is considered to be impaired, the amount of loss is calculated by comparing the recorded investment to the value determined by discounting the expected future cash flows at its effective interest rate or to the value of the underlying collateral if the real estate loan receivable is collateral dependent. Evaluating real estate loans receivable for potential impairment can require management to exercise significant judgment. No impairment was recorded for the years ended December 31, 2014, 2013 and 2012, respectively. Further, as of December 31, 2014 and December 31, 2013, no allowances for uncollectibility have been recorded.
	Other Assets
	Other assets included the following (in thousands):
			December 31, 2014		December 31, 2013
	Deposits on investment property (1)		$	15,000	$	—
	Prepaid expenses		2,021		2,259
	Deferred tax assets		8,127		7,340
	Other		791		680
	Other assets		$	25,939	$	10,279
	-1	As of December 31, 2014, this consisted of a deposit that had been paid related to the acquisition of The Summit. See Note 16 — Subsequent Events for additional information regarding the acquisition of The Summit.
	Revenue Recognition
	Rental payments are generally paid by the tenants prior to the beginning of each month. As of December 31, 2014 and December 31, 2013, respectively, the Company recorded liabilities of $34.6 million and $27.2 million related to prepaid rental payments which were included in other liabilities in the accompanying consolidated balance sheets. The Company recognizes rental revenue on a straight-line basis over the life of the lease including rent holidays, if any. Straight-line rent receivable was $47.4 million and $26.9 million as of December 31, 2014 and December 31, 2013, respectively. Straight-line rent receivable consists of the difference between the tenants’ rents calculated on a straight-line basis from the date of acquisition or lease commencement over the remaining terms of the related leases and the tenants’ actual rents due under the lease agreements and is included in tenant and other receivables in the accompanying consolidated balance sheets. Revenues associated with operating expense recoveries are recognized in the period in which the expenses are incurred based upon the tenant lease provisions. Revenues relating to lease termination fees are recognized on a straight-line basis amortized from the time that a tenant’s right to occupy the leased space is modified through the end of the revised lease term.
	Other revenues consist primarily of parking revenue, tenant reimbursements and interest on loans receivable. Parking revenue represents amounts generated from contractual and transient parking and is recognized in accordance with contractual terms or as services are rendered. Other revenues relating to tenant reimbursements are recognized in the period that the expense is incurred.
	Issuer Costs
	The Company reimburses the Advisor for any issuer costs related to the Company’s public offerings that it pays on the Company’s behalf.  Such costs consist of, among other costs, expenses of the Company’s organization, legal, accounting, bona fide out-of-pocket itemized and detailed due diligence costs, printing, filing fees, transfer agent costs, postage, escrow fees, data processing fees, advertising and sales literature and other offering-related costs. Organizational issuer costs, such as expenses associated with the formation of the Company and its board of directors are expensed and other issuer costs related to our public offerings are recorded as an offset to additional paid-in capital.
	Income Taxes
	The Company has elected to be treated as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”).  The Company’s management believes that it operates in such a manner as to qualify for treatment as a REIT and intends to operate in the foreseeable future in such a manner so that it will remain qualified as a REIT for federal income tax purposes. Accordingly, no provision has been made for U.S. federal income taxes for the years ended December 31, 2014, 2013 and 2012 in the accompanying consolidated financial statements. In 2014, 2013 and 2012, income tax expense recorded by the Company was primarily comprised of foreign income taxes related to the operation its international properties. The Company does not believe it has any uncertain tax positions or unrecognized tax benefits requiring disclosure.
	Redemption of Common Stock
	The Company complies with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification 480 “Distinguishing Liabilities from Equity” which requires, among other things, that financial instruments that represent a mandatory obligation of the Company to repurchase shares be classified as liabilities and reported at settlement value.  When approved, the Company will reclassify such obligations from equity to an accrued liability based upon their respective settlement values. The Company has recorded liabilities of $5.5 million and $2.3 million in accounts payable and accrued expenses in the accompanying consolidated balance sheets as of December 31, 2014 and December 31, 2013, respectively, related to shares tendered for redemption and approved by the board of directors, but which were not redeemed until the subsequent month. Such amounts have been included in redemption of common shares in the accompanying consolidated statements of equity.
	Per Share Data
	Net income (loss) per common share is calculated by dividing the net income (loss) attributable to common stockholders for each period by the weighted average number of common shares outstanding during such period. Net income (loss) per common share on a basic and diluted basis is the same because the Company has no potentially dilutive common shares outstanding.
	Recent Accounting Pronouncements
	In February 2013, FASB issued amendments to provide guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The adoption of this guidance did not have a material impact on the Company’s financial statements.
	In March 2013, FASB issued guidance on releasing cumulative translation adjustments when a reporting entity ceases to have a controlling financial interest in a subsidiary or group of assets that is a business within a foreign entity. The guidance was effective on a prospective basis for fiscal years and interim reporting periods within those years beginning after December 15, 2013. The adoption of this guidance did not have a material impact on the Company’s financial statements.
	In July 2013, FASB issued amendments to the Accounting Standards Codification (the “Codification”) to provide guidance on the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2013. The adoption of this guidance did not have a material impact on the Company’s financial statements.
	In March 2014, FASB made technical corrections and improvements related to glossary terms in the Codification.  The amendments were effective upon issuance and did not have a material impact on the Company’s financial statements.
	In April 2014, FASB issued amendments to the Codification to provide guidance on reporting discontinued operations. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2014 and early adoption is permitted. The Company has elected to adopt these amendments early, effective January 1, 2014. As a result, the Company did not report the dispositions of Stonecutter Court and 144 Montague in discontinued operations for the year ended December 31, 2014. See Note 3 — Investment Property for additional information regarding the sales for 144 Montague and Stonecutter Court. These sales did not qualify as discontinued operations as of December 31, 2014.
	In May 2014, FASB issued amendments to the Codification to provide guidance on recognizing revenue from contracts with customers. The amendments also replace prior guidance regarding the recognition of revenue from sales of real estate, except for revenue from sales that are part of a sale-leaseback transaction. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. The Company is currently assessing the impact, if any, that the adoption of these amendments will have on its financial statements.
	In August 2014, FASB issued amendments to the Codification to provide guidance on management’s responsibility to evaluate whether there are conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued or are available to be issued. These amendment are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016 and early adoption is permitted. The Company does not believe the adoption of this guidance will have a material impact on the Company’s financial statements. The Company did not elect to early adopt these amendments.
	In January 2015, FASB issued amendments to the Codification to provide guidance on the disclosure of extraordinary items. The amendments eliminate the concept of extraordinary items from GAAP. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 and early adoption is permitted. The Company does not believe the adoption of this guidance will have a material impact on the Company’s financial statements. The Company did not elect to early adopt these amendments.
	In February 2015, the FASB issued amendments to the Codification to provide guidance on consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 and early adoption is permitted. The Company is currently assessing the impact, if any, that the adoption of these amendments will have on its financial statements.

Investment_Property

Investment Property	12 Months Ended
	Dec. 31, 2014
Real Estate [Abstract]
INVESTMENT PROPERTY	INVESTMENT PROPERTY
	Investment property consisted of the following amounts as of December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Buildings and improvements (1)	$	2,501,176		$	2,371,242
	Less: accumulated depreciation	(138,821		)	(94,414		)
	Buildings and improvements, net	2,362,355			2,276,828
	Land	602,344			523,022
	Investment property, net	$	2,964,699		$	2,799,850
	-1	Included in buildings and improvements is approximately $24.3 million and $64.0 million of construction-in-progress related to the Company’s multi-family developments as of December 31, 2014 and December 31, 2013, respectively. Construction of the property in Houston, Texas was completed in July 2014, and the property no longer has any assets classified as construction-in-progress as of December 31, 2014. As of December 31, 2014, the remaining amounts included in construction-in-progress are related to the Company’s multi-family development in Miami, Florida.
	In November 2014, the Company completed the sale of 144 Montague for a contract sales price of 93.0 million AUD (approximately $79.3 million based on an exchange rate of $0.83 per AUD as of the transaction date). The property at 144 Montague is an office building located in the South Brisbane submarket. The Company acquired the property in April 2012 for a purchase price of 88.1 million AUD (approximately $91.3 million based on an exchange rate of $1.04 per AUD as of the transaction date). The Company recognized a gain on sale of this asset of $2.8 million, which was recorded in gain (loss) on sale of real estate investments on the consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2014.
	In December 2014, the Company completed the sale of Stonecutter Court for a contract sales price of £112.0 million (approximately $175.6 million based on an exchange rate of $1.57 per GBP as of the transaction date). Stonecutter Court is an office building located in London’s Central Business District. The Company acquired Stonecutter Court in March 2011 for a purchase price of £90.9 million (approximately $145.6 million based on an exchange rate of $1.60 per GBP as of the transaction date). The Company recognized a gain on sale of this asset of $61.2 million, which was recorded in gain (loss) on sale of real estate investments on the consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2014.
	As of December 31, 2014, the cost basis and accumulated amortization related to lease intangibles was as follows (in thousands):
		Lease Intangibles
					Out-of-Market			Out-of-Market
		In-Place Leases			Lease Assets			Lease Liabilities
	Cost	$	890,495		$	110,649		$	(104,528	)
	Less: accumulated amortization	(221,316		)	(36,363		)	20,143
	Net	$	669,179		$	74,286		$	(84,385	)
	As of December 31, 2013, the cost basis and accumulated amortization related to lease intangibles was as follows (in thousands):
		Lease Intangibles
					Out-of-Market			Out-of-Market
		In-Place Leases			Lease Assets			Lease Liabilities
	Cost	$	772,948		$	116,818		$	(80,844	)
	Less: accumulated amortization	(166,109		)	(27,933		)	12,489
	Net	$	606,839		$	88,885		$	(68,355	)
	Amortization expense of in-place leases was $127.2 million, $92.5 million and $57.2 million for the years ended December 31, 2014, 2013 and 2012, respectively. Amortization of out-of-market leases was a decrease to rental revenue of approximately $5.4 million, $6.0 million and $4.5 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	Anticipated amortization of in-place leases and out-of-market leases, net, for each of the years ending December 31, 2015 through December 31, 2019 are as follows (in thousands):
		In-Place			Out-of-Market
		Leases			Leases, Net
	2015	$	106,023		$	4,750
	2016	95,411			5,158
	2017	72,530			3,779
	2018	52,479			293
	2019	41,750			(1,516		)
	Leases
	The Company has entered into non-cancelable lease agreements with tenants for space.  As of December 31, 2014, the approximate fixed future minimum rentals for each of the years ending December 31, 2015 through 2019 and thereafter were as follows (in thousands):
		Fixed Future Minimum Rentals
	2015	$	316,334
	2016	296,779
	2017	278,756
	2018	208,424
	2019	181,803
	Thereafter	1,106,912
	Total	$	2,389,008
	Pursuant to the lease agreements with certain tenants in one of its buildings, a wholly-owned subsidiary of the Company receives fees for the provision of various telecommunication-related services and the use of certain related facilities. The fixed future minimum rentals expected to be received for such services for the years ending December 31, 2015 through 2019 and thereafter are $3.0 million, $2.9 million, $2.5 million, $2.5 million, $1.3 million and $4.3 million, respectively.
	During the years ended December 31, 2014 and 2013, the Company did not earn more than 10% of its total rental revenue from any individual tenant, respectively.
	Of the Company’s total rental revenue for the year ended December 31, 2012, approximately 10% was earned from a tenant in the accounting industry who has leases that expire in 2016, 2019 and 2024.

Recent_Acquisitions_of_Real_Es

Recent Acquisitions of Real Estate	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
RECENT ACQUISITIONS OF REAL ESTATE	RECENT ACQUISITIONS OF REAL ESTATE
	For the years ended December 31, 2014, 2013 and 2012, the Company acquired the assets and assumed certain liabilities of four, 13, and nine real estate operating properties located in the United States and internationally, respectively, for an aggregate net purchase price of $732.9 million, $1.7 billion and $626.7 million, respectively.
	The amounts recognized for major assets acquired as of the acquisition date were determined by allocating the purchase price of each property acquired in 2014, 2013 and 2012 as follows (in thousands):
	Property Name		Acquisition		Building and				Land (1)		In-place		Out-of-			Total (1)
			Date		Improvements (1)						Lease		Market Lease
											Intangibles (1)		Intangibles, Net (1)
	2014
	The Rim		2/13/14		$	90,990			$	65,890	$	41,360	$	(21,940	)	$	176,300
	25 Cabot Square		3/28/14		$	165,121			$	—	$	206,640	$	(16	)	$	371,745
	Simon Hegele Logistics		6/3/14		$	34,663			$	8,481	$	5,986	$	41		$	49,171
	818 Bourke		10/31/14		$	82,867			$	36,487	$	17,082	$	(792	)	$	135,644
	2013
	Mercedes Benz Bank		2/7/13		$	47,643			$	11,953	$	7,093	$	3,533		$	70,222
	One Westferry Circus		2/28/13		$	48,874			$	—	$	74,693	$	1,049		$	124,616
	465 Victoria		2/28/13		$	48,788			$	26,566	$	17,712	$	(2,233	)	$	90,833
	Riverside Center		3/27/13		$	125,014			$	45,888	$	30,360	$	(4,170	)	$	197,092
	New City		3/28/13		$	115,208			$	—	$	46,117	$	2,137		$	163,462
	825 Ann		4/30/13		$	83,802			$	20,669	$	23,725	$	—		$	128,196
	The Campus at Playa Vista		5/14/13		$	125,567			$	41,160	$	37,320	$	12,580		$	216,627
	Perspective Défense		6/21/13		$	109,704			$	29,039	$	22,038	$	5,060		$	165,841
	The Markets at Town Center		7/23/13		$	76,067			$	52,130	$	19,020	$	(12,210	)	$	135,007
	The Avenue		8/12/13		$	71,990			$	54,940	$	47,350	$	(11,280	)	$	163,000
	2300 Main		8/29/13		$	27,940			$	3,570	$	7,990	$	—		$	39,500
	Fiege Mega Centre		10/18/13		$	36,005			$	10,107	$	7,481	$	—		$	53,593
	55 M Street		12/9/13		$	85,277			$	24,810	$	34,730	$	(3,940	)	$	140,877
	2012
	Poland Logistics Portfolio (2)		03/29/12 and 10/10/12 (3)		$	97,627			$	25,893	$	33,062	$	644		$	157,226
	144 Montague (4)		4/16/12		$	49,424			$	13,803	$	28,083	$	—		$	91,310
	100 Brookes		7/13/12		$	41,404			$	8,600	$	12,859	$	4,737		$	67,600
	Minneapolis Retail Center (5)		8/1/12		$	78,711			$	30,792	$	34,176	$	(13,078	)	$	130,601
	550 Terry Francois		8/31/12		$	109,760			$	41,270	$	20,860	$	8,110		$	180,000
	-1	For acquisitions denominated in a foreign currency, amounts have been translated at a rate based on the rate in effect on the acquisition date.
	-2	The Poland Logistics Portfolio is comprised of five industrial parks located in Warsaw, Wroclaw and Upper Silesia, Poland.
	-3	The first four industrial parks in the Poland Logistics Portfolio were acquired on March 29, 2012 and the remaining fifth industrial park, Distribution Park Sosnowiec, was acquired on October 10, 2012.
	-4	In November 2014, the Company completed the sale of 144 Montague. See Note 3 — Investment Property for more information regarding this transaction.
	-5	The Minneapolis Retail Center includes the acquisition of a parking garage on December 26, 2012.
	The weighted average amortization period for the intangible assets and liabilities acquired in connection with the 2014, 2013, and 2012 acquisitions, as of the date of the acquisition, was as follows (in years):
			In-Place Leases		Above-Market Lease Assets		Below-Market Lease Liabilities
	2014 Acquisitions:
	The Rim		16.5		12.9		35.3
	25 Cabot Square (1)		11.7		0.5		3
	Simon Hegele Logistics		13.4		13.4		—
	818 Bourke		4.1		3.3		3.1
	2013 Acquisitions:
	Mercedes Benz Bank		5		5		—
	One Westferry Circus (1)		8.4		9.9		13.1
	465 Victoria		4.7		5.2		7.3
	Riverside Center		6.2		1		6.9
	New City (1)		4.8		4.3		3
	825 Ann		9.5		—		—
	The Campus at Playa Vista		6.7		8.6		7.1
	Perspective Défense		3.8		3.8		3.8
	The Markets at Town Center		9.4		0.5		7
	The Avenue		4.1		6.8		17.2
	2300 Main		5.6		—		—
	Fiege Mega Centre		10.2		—		—
	55 M Street		7.1		7.8		7.3
	2012 Acquisitions:
	Poland Logistics Portfolio		4.1		5.6		3.4
	144 Montague		9.6		—		—
	100 Brookes		5.6		5.6		—
	Minneapolis Retail Center		6.9		8.7		9.2
	550 Terry Francois		5.2		5.2		—
	(1)Excludes the effect of ground leases which significantly increase the weighted average useful life for these intangibles.
The table below includes the amounts of revenue and net income (loss) of the acquisitions completed during the year ended December 31, 2014, which are included in the Company’s consolidated results of operations for the year ended December 31, 2014 (in thousands):
		For the Year Ended
2014 Acquisitions		31-Dec-14
The Rim	Revenue	$	17,240
	Net income (loss)	$	369
25 Cabot Square	Revenue	$	26,666
	Net income (loss)	$	(16,639	)
Simon Hegele Logistics	Revenue	$	2,110
	Net income (loss)	$	(3,974	)
818 Bourke	Revenue	$	1,980
	Net income (loss)	$	(7,700	)
The following unaudited consolidated information is presented to give effect to current year acquisitions through December 31, 2014 as if the acquisitions occurred on January 1, 2013. This information excludes activity that is non-recurring and not representative of our future activity, primarily acquisition fees and expenses of $47.5 million and $82.1 million for the years ended December 31, 2014 and 2013, respectively. The information below is not necessarily indicative of what the actual results of operations would have been had we completed these transactions on January 1, 2013, nor does it purport to represent our future operations (amounts in thousands, except per share amounts):
	For the Years Ended
	December 31,
	Pro Forma 2014				Pro Forma 2013
Revenues	$	477,692			$	392,489
Net income (loss)	$	56,503			$	(20,717	)
Basic and diluted income (loss) per common share	$	0.21			$	(0.11	)
The table below includes the amounts of revenue and net income (loss) of the acquisitions completed during the year ended December 31, 2013, which are included in the Company’s consolidated results of operations for the year ended December 31, 2013 (in thousands):
		For the Year Ended
2013 Acquisitions		31-Dec-13
Mercedes Benz Bank	Revenue	$	5,752
	Net income (loss)	$	(4,781	)
One Westferry Circus	Revenue	$	11,938
	Net income (loss)	$	(6,717	)
465 Victoria	Revenue	$	7,403
	Net income (loss)	$	(5,576	)
Riverside Center	Revenue	$	15,854
	Net income (loss)	$	2,468
New City	Revenue	$	11,509
	Net income (loss)	$	(4,167	)
825 Ann	Revenue	$	7,724
	Net income (loss)	$	(7,318	)
The Campus at Playa Vista	Revenue	$	12,815
	Net income (loss)	$	1,244
Perspective Défense	Revenue	$	8,325
	Net income (loss)	$	(12,035	)
The Markets at Town Center	Revenue	$	5,654
	Net income (loss)	$	2,482
The Avenue at Murfreesboro	Revenue	$	5,423
	Net income (loss)	$	(191	)
2300 Main	Revenue	$	1,428
	Net income (loss)	$	(146	)
Fiege Mega Centre	Revenue	$	877
	Net income (loss)	$	(3,353	)
55 M Street	Revenue	$	799
	Net income (loss)	$	(2,501	)
The following unaudited consolidated information is presented to give effect to 2013 acquisitions through December 31, 2013 as if the acquisitions occurred on January 1, 2012. This information excludes activity that is non-recurring and not representative of our future activity, primarily acquisition fees and expenses of $82.1 million and $28.7 million for the years ended December 31, 2013 and 2012, respectively. The information below is not necessarily indicative of what the actual results of operations would have been had we completed these transactions on January 1, 2012, nor does it purport to represent our future operations (amounts in thousands, except per share amounts):
	For the Years Ended
	December 31,
	Pro Forma 2013				Pro Forma 2012
Revenues	$	388,133			$	348,012
Net income (loss)	$	(21,472	)		$	(31,255	)
Basic and diluted income (loss) per common share	$	(0.12	)		$	(0.20	)
The table below includes the amounts of revenue and net income (loss) of the acquisitions completed during the year ended December 31, 2012, which are included in the Company’s consolidated results of operations for the year ended December 31, 2012 (in thousands):
		For the Year Ended
2012 Acquisitions		31-Dec-12
Poland Logistics Portfolio	Revenue	$	11,595
	Net income (loss)	$	(6,071	)
144 Montague	Revenue	$	7,153
	Net income (loss)	$	(4,903	)
100 Brookes	Revenue	$	3,291
	Net income (loss)	$	(4,680	)
Minneapolis Retail Center	Revenue	$	7,536
	Net income (loss)	$	(1,317	)
550 Terry Francois	Revenue	$	6,362
	Net income (loss)	$	1,989
The following unaudited consolidated information is presented to give effect to 2012 acquisitions through December 31, 2012 as if the acquisitions occurred on January 1, 2011. This information excludes activity that is non-recurring and not representative of our future activity, primarily acquisition fees and expenses of $28.7 million and $20.0 million for the years ended December 31, 2012 and 2011, respectively. The information below is not necessarily indicative of what the actual results of operations would have been had we completed these transactions on January 1, 2011, nor does it purport to represent our future operations (amounts in thousands, except per share amounts):
	For the Years Ended
	December 31,
	Pro Forma 2012				Pro Forma 2011
Revenues	$	222,914			$	167,137
Net income (loss)	$	(3,157	)		$	(47,170	)
Basic and diluted income (loss) per common share	$	(0.03	)		$	(0.39	)
See Note 16 — Subsequent Events for details regarding our investments that were acquired subsequent to December 31, 2014.

Real_Estate_Loans_Receivable

Real Estate Loans Receivable	12 Months Ended
	Dec. 31, 2014
Real Estate Loans Receivable [Abstract]
REAL ESTATE LOANS RECEIVABLE	REAL ESTATE LOANS RECEIVABLE
	Real estate loans receivable included the following at December 31, 2014 and 2013 (in thousands):
	Property	Original Funding Date	Maturity Date	Interest Rate	Total Loan		Balance as of			Balance as of
					Commitment		31-Dec-14			31-Dec-13
	Flagship Capital JV
	Norchester Village	3/1/12	5/5/15	N/A	$	4,961	$	—		$	4,289
	Bay Park Apartments	7/30/12	7/30/14	N/A	3,232		—			3,212
	Houston Retail Portfolio	8/2/12	8/2/15	7.60%	11,804		11,457			11,363
	Motor Circle	12/28/12	12/28/15	8.00%	3,175		2,423			2,412
	Deer Creek	2/7/13	2/7/15	N/A	5,450		—			5,287
	Casa Blanca	2/7/13	2/7/15	N/A	5,742		—			5,350
	Falls of Kirkwood	10/18/13	10/12/15	8.00%	6,300		6,222			3,641
	Falls of Town Park Apartments	12/30/13	12/30/15	7.75%	5,327		5,227			4,364
	Precinct Villages	3/18/14	3/17/16	8.50%	2,595		1,811			—
	Manor Palms	6/26/14	12/25/15	7.00%	4,109		3,979			—
	Randall’s	7/28/14	7/28/17	6.25%	10,939		8,110			—
	Finesilver	7/31/14	7/31/16	6.45%	7,233		5,165			—
	Dymaxion Apartments	12/15/14	12/15/16	7.60%	8,500		7,684			—
	Marbach Park Apartments	12/15/14	12/15/16	7.60%	9,500		7,676			—
				7.38%	$	88,867	$	59,754		$	39,918
	Less: Origination fees						(640		)	(354		)
	Total Flagship Capital JV						$	59,114		$	39,564
	Other Loans Receivable
	@1377	6/29/12	7/1/16	10.00%	$	3,962	$	3,962		$	3,673
	The Rim	9/8/14	9/7/15	8.50%	$	29,800	$	11,324		$	—
	Total Real Estate Loans Receivable						$	74,400		$	43,237

Debt_Financing

Debt Financing	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
DEBT FINANCING	DEBT FINANCING
	As of December 31, 2014 and 2013, the Company had $2.1 billion and $2.0 billion of debt outstanding, respectively, with a weighted average years to maturity of 2.8 years and 3.2 years, respectively, and a weighted average interest rate of 2.9% and 3.3%, respectively. The following table describes the Company’s debt outstanding at December 31, 2014 and 2013 (in thousands, except percentages):
	Description		Origination or Assumption Date	Maturity Date		Interest Rate Description	Interest Rate as of			Principal Outstanding at				Principal Outstanding at
							31-Dec-14			31-Dec-14				31-Dec-13
	Secured Mortgage Debt
	Brindleyplace Project		7/1/10	7/7/15		75% fixed via swap / 25% variable	3.46	%	(1)	$	188,034			$	199,608
	Hock Plaza		9/8/10	12/6/15		Fixed	5.58	%		75,657				76,839
	Southpark		10/19/10	12/6/16		Fixed	5.67	%		18,000				18,000
	Fifty South Sixth		11/4/10	11/4/15		Fixed via swap	3.62	%		95,000				95,000
	Stonecutter Court (2)		3/11/11	3/11/16		Fixed via swap	N/A			—				88,296
	Gogolevsky 11		8/25/11	4/7/21		Variable	6.48	%		35,100				36,500
	Campus at Marlborough		10/28/11	12/1/14		Fixed	5.21	%		—				54,596
	Flagship Capital JV  (3)		7/2/14	7/2/19		Variable, subject to floor of 4.25%	4.25	%		25,162				11,047
	144 Montague (4)		4/16/12	4/16/17		Variable, subject to interest rate cap	N/A			—				49,937
	100 Brookes		7/13/12	7/31/17		Variable, subject to interest rate cap	5.49	%		35,254				38,354
	Poland Logistics Portfolio (5)		8/2/12	6/30/17		Variable, subject to interest rate cap	2.88	%		76,797				88,812
	Minneapolis Retail Center		8/2/12	8/10/19		Fixed	3.5	%		65,500				65,500
	825 Ann		11/16/12	4/30/16		Variable	4.79	%		66,091				71,901
	Mercedes Benz Bank		2/7/13	12/31/19		Variable, subject to interest rate cap	1.58	%		41,346				47,304
	465 Victoria		2/28/13	2/28/16		Variable, subject to interest rate cap	4.85	%		43,396				47,211
	New City		3/28/13	3/28/18		Variable, subject to interest rate cap	2.88	%		95,934				111,532
	One Westferry Circus		5/9/13	5/5/20		Fixed	3.3	%		74,554				79,142
	The Campus at Playa Vista		5/14/13	6/1/16		Variable	1.66	%		115,000				115,000
	Perspective Defense		6/21/13	7/25/19		Variable, subject to interest rate cap	2.59	%		85,085				96,362
	Fiege Mega Centre		10/18/13	10/18/18		Variable, subject to interest rate cap	1.78	%		28,373				32,542
	55 M Street		12/9/13	12/9/17		Variable	1.62	%		72,000				72,000
	25 Cabot Square		3/26/14	3/26/20		Fixed	3.5	%		192,209				—
	Simon Hegele Logistics		4/28/14	6/15/19		Fixed	1.9	%		26,106				—
	818 Bourke		10/31/14	10/31/19		Variable, subject to interest rate cap	3.49	%		74,627				—
	Other Notes Payable
	JPMorgan Chase Revolving		4/13/12	5/22/16		Variable	2.14	%	(1)	122,894				204,467
	Credit Facility
	JPMorgan Chase Revolving Credit Facility - Term Loan		5/22/13	5/22/17		Variable	1.95	%		378,000				200,000
	WaterWall Place Construction Loan		6/29/12	6/29/16		Variable, subject to interest rate cap	2.41	%	(1)	44,092				30,107
	Aviva Coral Gables JV Construction Loan (formerly known as the Ponce & Bird JV)		5/10/13	5/10/17		Variable	2.41	%	(1)	38,431				6,557
	Total Principal Outstanding									$	2,112,642			$	1,936,614
	Unamortized Discount									(283		)		(713		)
	Notes Payable									$	2,112,359			$	1,935,901
	Notes Payable to Affiliates
	WaterWall Place Construction Loan		12/15/11	12/14/14		Variable	N/A			—				20,341
	Aviva Coral Gables Construction Loan (formerly known as the Ponce & Bird JV)		7/13/12	7/13/15		Variable	2.15	%		17,601				17,220
	Total Notes Payable to Affiliates									$	17,601			$	37,561
										$	2,129,960			$	1,973,462
	-1	Represents the weighted average interest rate for the year ended December 31, 2014.
	-2	In December 2014, the Company sold Stonecutter Court. In connection with this sale of Stonecutter Court, the Company retired the outstanding principal balance of the secured mortgage loan in December 2014.
	-3	In July 2014, the Flagship JV entered into a new credit agreement with a maximum commitment of $50.0 million and retired the previous credit agreement.
	-4	In November 2014, the Company sold 144 Montague. In connection with this sale of 144 Montague, the Company retired the outstanding principal balance of the secured mortgage loan in November 2014.
	-5	See the discussion below under the heading “Financial Covenants” for additional information regarding the Company’s noncompliance with a debt covenant on its loan secured by the Poland Logistics Portfolio that occurred during the year.
	As of December 31, 2014 and 2013, the fixed rate debt includes $236.0 million and $333.0 million, respectively, of variable rate debt economically fixed through the use of interest rate swaps. The variable rate debt has variable interest rates ranging from LIBOR, EURIBOR or the BBSY screen rate plus 1.00% to 6.25% per annum. Additionally, as of December 31, 2014, $508.6 million of our variable rate debt was capped at strike rates ranging from 1.0% to 4.5%. See Note 7 — Derivative Instruments for more information regarding our interest rate contracts.
	JP Morgan Chase Revolving Credit Agreement and Bridge Loans
	In April 2012, the Operating Partnership entered into a credit agreement (the “Credit Agreement”) with JPMorgan Chase Bank, N.A., as administrative agent for itself and various lenders named in the Credit Agreement. The Company refers to the Revolving Loan Commitment and Term Loan Commitment collectively as the “Revolving Credit Facility.” The borrowings under the Revolving Loan Commitment may be denominated in U.S. dollars, British pound sterling, Euros, Australian dollars or Canadian dollars with aggregate foreign currency commitments constituting up to $212.5 million of the maximum amount available under the Revolving Loan Commitment.
	In April 2014, the Company entered into an amendment to its revolving credit facility with JPMorgan Chase Bank, National Association (the “Revolving Credit Facility”), resulting in the following changes:
	•	an increase of the term loan commitment (the “Term Loan Commitment”) from $200.0 million to $378.0 million.
	•	an increase of the foreign currency commitments under the revolving loan commitment (the “Revolving Loan Commitment”) to $400.0 million; and
	•	the removal of the $750.0 million maximum under the Revolving Loan Commitment and the $250.0 million maximum under the Term Loan Commitment. As a result of this amendment, the Company may request increases in each commitment so long as the aggregate commitments do not exceed $1.0 billion.
	The Revolving Loan Commitment has a maturity date of May 22, 2016, subject to two 1-year extensions at the Company’s option and subject to the satisfaction of certain conditions. The Term Loan Commitment has a maturity date of May 22, 2017, subject to a 1-year extension at the Company’s option and subject to the satisfaction of certain conditions.
	For the period from January 2014 through December 2014, the Company made draws of approximately $673.5 million and payments of $577.3 million under the Revolving Credit Facility, and incurred a loss of $0.3 million through December 31, 2014 related to its borrowings on its loans denominated in a foreign currency. Additionally, from January 1, 2015 through March 30, 2015, the Company made draws of $167.0 million under the Revolving Credit Facility resulting in an outstanding principal balance of $667.7 million, including the effect of changes in exchange rates as of March 30, 2015.
	Notes Payable to Affiliates
	In December 2011, the WaterWall Place JV (as described in Note 1 — Organization) entered into a construction loan agreement with an affiliate of Hines with a maximum principal amount of $22.8 million related to the development of a multi-family project in Houston, Texas. The Company repaid this loan upon its maturity in December 2014.
	In July 2012, the Aviva Coral Gables JV (formerly known as the Ponce & Bird JV) entered into a construction loan agreement with a maximum principal amount of $20.1 million with an affiliate of Hines related to the development of a multi-family project in Miami, Florida. Interest on the loan is charged monthly at a variable rate, based on Hines’ then-current borrowing rate under its revolving credit facility. The loan requires monthly payments of principal and interest to the extent that net cash flow of the Aviva Coral Gables JV (formerly known as the Ponce & Bird JV) exceeds amounts then due and payable. This line of credit has a maturity date that is the earlier of (i) the date on which 95% of the residential units in the project have been leased or (ii) July 13, 2015.
	Financial Covenants
	The Company's mortgage agreements and other loan documents for the debt described in the table above contain customary events of default, with corresponding grace periods, including payment defaults, cross-defaults to other agreements and bankruptcy-related defaults, and customary covenants, including limitations on liens and indebtedness and maintenance of certain financial ratios. In addition, the Company has executed customary recourse carve-out guarantees of certain obligations under its mortgage agreements and the other loan documents. The Company is not aware of any instances of noncompliance with financial covenants on any of its loans as of December 31, 2014.
	The loan agreement for the loan secured by the Poland Logistics Portfolio requires that an occupancy level of at least 80% be maintained across the portfolio. In the fourth quarter of 2013, the Poland Logistics Portfolio did not meet this required occupancy level and was required to set up a reserve consisting of any excess net operating income (defined by the loan agreement as the amount equal to the total income of the portfolio less value-add taxes and payments on account service charges), which may be used towards repayment of the loan if the required occupancy has not been met for about six months. The reserve will be discharged when the covenant has been met for two consecutive quarters. However, in 2014, the Company was able to meet the covenant for two consecutive quarters, and as a result the reserve was discharged. As of December 31, 2014, no such reserves were required to be funded.
	Principal Payments on Debt
The Company is required to make the following principal payments on its outstanding notes payable for each of the years ending December 31, 2015 through December 31, 2019 and for the period thereafter. Amounts are in thousands:
	Payments due by Year
	2015			2016			2017				2018				2019		Thereafter
Principal payments	$	384,770		$	418,256		$	604,868			$	120,664			$	308,222	$	293,463

Derivative_Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedges, Assets [Abstract]
DERIVATIVE INSTRUMENTS	DERIVATIVE INSTRUMENTS
	The Company has entered into several interest rate swap contracts and interest rate cap agreements as economic hedges against the variability of future interest rates on its variable interest rate borrowings.  The Company’s interest rate swaps economically fixed the interest rates on each of the loans to which they relate and the interest rate cap contracts have economically limited the interest rate on the loans to which they relate.   The Company has not designated any of these derivatives as hedges for accounting purposes. See Note 11 — Fair Value Measurements for additional information regarding the fair value of our interest rate contracts.
	The Company also entered into foreign currency forward contracts as economic hedges against the variability of foreign exchange rates on future international investments in 2014. These forward contracts economically fixed the currency exchange rates on each of the investments to which they related. The Company did not designate any of these contracts as fair value or cash flow hedges for accounting purposes. See Note 11 — Fair Value Measurements for additional information regarding the fair value of our foreign currency forwards.
	The table below provides additional information regarding the Company’s interest rate contracts (in thousands, except percentages).
	Interest Rate Contracts
	Type		Effective Date		Expiration Date		Notional Amount (1)			Interest Rate Received		Pay Rate /Strike Rate
	Interest rate swaps		July 7, 2010		July 7, 2015		$	141,026		LIBOR		2.29	%
	Interest rate swap		November 4, 2010		November 4, 2015		$	95,000		LIBOR		1.37	%
	Interest rate cap		August 2, 2012		June 30, 2017		$	57,890		EURIBOR		2	%
	Interest rate cap		August 13, 2012		August 13, 2015		$	17,628		BBSY		4	%
	Interest rate cap		October 9, 2012		June 30, 2017		$	12,048		EURIBOR		2	%
	Interest rate cap		January 7, 2013		June 29, 2016		$	45,500		LIBOR		1.25	%
	Interest rate cap		March 11, 2013		March 31, 2018		$	41,346		EURIBOR		1.5	%
	Interest rate cap		March 20, 2013		February 29, 2016		$	22,511		BBSW		4.33	%
	Interest rate cap		July 30, 2013		April 30, 2016		$	49,570		BBSW		4.5	%
	Interest rate cap		11-Apr-13		March 16, 2018		$	67,413		EURIBOR		2.5	%
			6-May-13
	Interest rate cap		July 25, 2013		July 25, 2019		$	85,084		EURIBOR		1.7	%	(2)
	Interest rate cap		October 18, 2013		October 18, 2018		$	28,372		EURIBOR		2	%
	Interest rate cap		September 5, 2014		December 5, 2016		$	43,964		LIBOR		1	%	(3)
	Interest rate cap		November 27, 2014		October 27, 2017		$	37,315		BBSY		4	%
	-1	For notional amounts denominated in a foreign currency, amounts have been translated at a rate based on the rate in effect on December 31, 2014.
	-2	Beginning in July 2016, the strike rate of this interest rate cap will increase to 2.00% for the remaining term of the interest rate cap.
	-3	Beginning in January 2015, the strike rate of this interest rate cap will increase to 2.00%, and beginning in January 2016, the strike rate of this interest rate cap will increase to 3.25% for the remaining term.
	The table below provides additional information regarding the Company’s foreign currency forward contracts that are outstanding as of December 31, 2014 (in thousands).
	Foreign Currency Forward Contracts
	Effective Date		Expiration Date		Notional Amount				Buy/Sell	Traded Currency Rate
	June 26, 2014		June 26, 2015		£	105,800			USD/GBP	$	1.69
	September 10, 2014		June 26, 2015		£	105,800			GBP/USD	$	1.62
	The Company has not entered into any master netting arrangements with its third-party counterparties and does not offset on its consolidated balance sheets the fair value amounts recorded for derivative instruments. The table below presents the fair value of the Company’s derivative instruments included in “Assets—Derivative Instruments” and “Liabilities—Derivative Instruments” on the Company’s consolidated balance sheets, as of December 31, 2014 and December 31, 2013 (in thousands):
			Derivative Assets							Derivative Liabilities
			December 31,				December 31,			December 31,				December 31,
			2014				2013			2014				2013
	Derivatives not designated as hedging instruments:
	Interest rate swaps		$	—			$	—		$	(2,684	)		$	(9,329	)
	Interest rate caps		345				4,428			—				—
	Foreign currency forward contracts		14,316				866			(7,164		)		(488		)
	Total derivatives		$	14,661			$	5,294		$	(9,848	)		$	(9,817	)
	The table below presents the effects of the changes in fair value of our derivative instruments in the Company’s consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2014, 2013 and 2012 (in thousands):
			Gain (Loss) on Derivative Instruments
			Year Ended
			December 31,				December 31,			December 31,
			2014				2013			2012
	Derivatives not designated as hedging instruments:
	Interest rate swaps		$	4,122			$	5,910		$	(1,479	)
	Interest rate caps		(4,131		)		(828		)	(1,184		)
	Foreign currency forward contracts		7,331				4,827			4,061
	Total gain (loss) on derivatives		$	7,322			$	9,909		$	1,398

Distributions

Distributions	12 Months Ended
	Dec. 31, 2014
Distributions [Abstract]
DISTRIBUTIONS	DISTRIBUTIONS
	The Company has declared distributions for the months of January 2012 through March 2015 at an amount equal to $0.0017808 per share, per day. Additionally, Hines Moorfield UK Venture I S.A.R.L. (the “Brindleyplace JV”) declared distributions in the amount of $4.3 million, $2.8 million and $2.9 million to Moorfield for the years ended December 31, 2014, 2013 and 2012, respectively, related to the operations of several properties acquired by the Brindleyplace JV located in Birmingham, England (the “Brindleyplace Project”).
	The table below outlines the Company’s total distributions declared to stockholders and noncontrolling interests (Hines Global REIT Associates Limited Partnership (“HALP”), Moorfield and Flagship Capital GP) for the years ended December 31, 2014, 2013 and 2012, including the breakout between the distributions declared in cash and those reinvested pursuant to the Company’s distribution reinvestment plan (in thousands). The Company declares distributions to the Company’s stockholders as of daily record dates and aggregates and pays such distributions monthly.
		Stockholders						Noncontrolling Interests
	Distributions for the Years Ended	Cash Distributions		Distributions Reinvested		Total Declared		Total Declared
	December 31, 2014	$	79,555	$	91,530	$	171,085	$	4,668
	December 31, 2013	$	56,702	$	63,062	$	119,764	$	3,331
	December 31, 2012	$	35,581	$	38,394	$	73,975	$	3,159

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS
	The table below outlines fees and expense reimbursements incurred that are payable by the Company to Hines and its affiliates for the years ended December 31, 2014, 2013, and 2012 and amounts unpaid as of December 31, 2014 and 2013 (in thousands):
		Incurred During the Years Ended December 31,						Unpaid as of December 31,
	Type and Recipient	2014		2013		2012		2014		2013
	Selling Commissions- Dealer Manager	$	27,021	$	56,259	$	40,560	$	—	$	658
	Dealer Manager Fee- Dealer Manager	$	9,334	$	19,321	$	13,992	—		(5		)
	Issuer Costs- the Advisor	$	1,975	$	7,137	$	5,710	—		482
	Acquisition Fee- the Advisor and affiliates of Hines	$	18,188	$	40,136	$	16,064	1,492		—
	Asset Management Fee- the Advisor and affiliates of Hines	$	34,881	$	20,354	$	5,942	8,402		7,241
	Disposition Fee- the Advisor	$	2,543	$	—	$	—	—		—
	Other (1)	$	6,713	$	5,216	$	2,894	1,657		1,166
	Property Management Fee- Hines	$	6,680	$	5,599	$	3,000	159		(144		)
	Development/ Construction Management Fee- Hines	$	2,556	$	4,010	$	119	35		83
	Leasing Fee - Hines	$	2,138	$	3,371	$	228	1,363		1,735
	Redevelopment Construction Management- Hines	$	9	$	—	$	107	—		—
	Expense Reimbursement- Hines (with respect to management and operations of the Company’s properties)	$	10,777	$	7,074	$	4,562	998		5,203
	Due to Affiliates							$	14,106	$	16,419
	-1	Includes amounts the Advisor paid on behalf of the Company such as general and administrative expenses and acquisition-related expenses.  These amounts are generally reimbursed to the Advisor during the month following the period in which they are incurred.
	Notes Payable to Affiliates
	The WaterWall Place JV and Aviva Coral Gables JV (formerly known as the Ponce & Bird JV as described in Note 1 — Organization) entered into separate construction loans with an affiliate of Hines related to the development of multi-family projects in Houston, Texas and Miami, Florida, respectively. In December 2014, the WaterWall Place JV repaid the outstanding balance on its construction loan. See Note 6 — Debt Financing for additional information regarding these construction loans.
	@1377 Development
	In June 2012, the Company entered into a $3.2 million mezzanine loan commitment plus accrued interest to provide construction financing to the @1377 development, which is being developed by an affiliate of Hines. As of December 31, 2014 and December 31, 2013, $4.0 million and $3.7 million were outstanding under the mezzanine loan, respectively. See Note 1 — Organization for additional information concerning the @1377 development.
	Dealer Manager Agreement
	The Dealer Manager received a selling commission of up to 7.5% of gross offering proceeds and a dealer manager fee of up to 2.5% of gross offering proceeds, both of which were recorded as an offset to additional paid-in-capital in the Company’s financial statements. Pursuant to separately negotiated agreements, the Dealer Manager reallowed up to 7.0% of gross proceeds as a selling commission and up to 1.5% of gross proceeds from its dealer manager fee as a marketing fee to broker-dealers participating in the Company’s public offerings. The Dealer Manager paid broker-dealers up to an additional 1.0% of the gross offering proceeds as reimbursements for distribution and marketing-related costs and expenses. No selling commissions or dealer manager fees were or will be paid for sales under the Company’s distribution reinvestment plan.
	Advisory Agreement
	Pursuant to the Advisory Agreement, the Company is required to pay the following fees and expense reimbursements:
	Acquisition Fee – Prior to April 2012, the Advisor received an acquisition fee equal to 2.0% of (i) the purchase price of each real estate investment the Company acquired or originated, including any debt attributable to such investments or the principal amounts of any loans originated directly by the Company and (ii) with respect to indirect investments through another entity, such entity’s pro rata share of the gross asset value of all real estate investments held by such entity. In March 2012, the Advisory Agreement was amended to increase the acquisition fee to 2.25% of these amounts.
	Asset Management Fee – The Advisor receives an asset management fee equal to 0.125% per month of the net equity capital invested by the Company in real estate investments as of the end of each month. In April 2012, the Advisor agreed to waive the asset management fee otherwise payable to it pursuant to the Advisory Agreement for each quarter in 2012 and 2013, to the extent that the Company’s modified funds from operations (“MFFO”) for a particular quarter, as disclosed in each of its quarterly reports, amounts to less than 100% of the aggregate distributions declared for such quarter. As a result of these waivers, the Advisor waived $12.2 million of asset management fees payable to it for these periods, in aggregate. These fee waivers are not deferrals and accordingly, these fees will not be paid to the Advisor in cash at any time in the future.
	Additionally, the Advisor agreed to waive asset management fees otherwise payable to it for the years ended December 31, 2014 and 2015, respectively, to the extent that our MFFO for the years ended December 31, 2014 and 2015, as disclosed in our Annual Report on Form 10-K for such year, amounts to less than 100% of the aggregate distributions declared to our stockholders for such year. However, because MFFO exceeded distributions declared to the Company’s stockholders during the year ended December 31, 2014, the Advisor did not waive any asset management fees.
	During the years ended December 31, 2014, 2013 and 2012, the Company incurred asset management fees of $34.9 million, $20.4 million and $5.9 million, respectively.
	Disposition Fee – The Advisor or its affiliates also will be paid a disposition fee of 1.0% of the sales price of any real estate investments sold or 1.0% of the Company’s pro rata share of the sales price with respect to the Company’s indirect investments. As of December 31, 2014, the Company incurred $2.5 million in disposition fees as a result of its dispositions of 144 Montague and Stonecutter Court.
	Special OP Units –Hines Global REIT Associates Limited Partnership, an affiliate of Hines, owns the special units of the Operating Partnership (“Special OP Units”), which entitle them to receive distributions in an amount equal to 15% of distributions, including from sales of real estate investments, refinancings and other sources, but only after the Company’s stockholders have received, or are deemed to have received, in the aggregate, cumulative distributions equal to their invested capital plus an 8.0% cumulative, non-compounded annual pre-tax return on such invested capital.
	At the sole discretion of the Advisor, the acquisition fees, asset management fees, debt financing fees and disposition fees are payable, in whole or in part, in cash or units of the Operating Partnership (“OP Units”). For the purposes of the payment of these fees, each OP Unit will be valued at the per-share offering price of the Company’s common stock in its most recent public offering less selling commissions and dealer manager fees. Upon the Advisor’s request, each OP unit can be repurchased for cash or can be converted into one share of the Company’s common stock. The decision to redeem each OP unit for cash or shares is at the Company’s option except in certain circumstances such as the Company’s decision to list its shares on a national securities exchange, a liquidation event or upon termination or nonrenewal of the Advisory Agreement for any reason other than by the Advisor. The Company will recognize the expense related to these OP Units as the related service is performed, as each OP Unit will be fully vested upon issuance.
	The Company reimburses the Advisor for all expenses paid or incurred by the Advisor in connection with the services provided to the Company, subject to the limitation that the Company will not reimburse the Advisor for any amount by which its operating expenses (including the asset management fee) at the end of the four preceding fiscal quarters exceeds the greater of: (A) 2% of its average invested assets, or (B) 25% of its net income determined without reduction for any additions to reserves for depreciation, bad debts or other similar non-cash reserves and excluding any gain from the sale of the Company’s assets for that period. Notwithstanding the above, the Company may reimburse the Advisor for expenses in excess of this limitation if a majority of the independent directors determines that such excess expenses are justified.
	In addition, as described in Note 2 – Summary of Significant Accounting Policies – Issuer Costs, the Company reimburses the Advisor for any issuer costs paid on its behalf. However, the total compensation related to issuer costs, selling commissions and dealer manager fees may not exceed 15% of gross proceeds from the Offering.
	Property Management and Leasing Agreements
	The Company pays Hines fees for the management and leasing of some of its properties. Property management fees are equal to a market-based percentage of the gross revenues of the properties managed by Hines or the amount of property management fees recoverable from tenants of the properties managed by Hines under their leases. In addition, if Hines provides leasing services with respect to a property, the Company will pay Hines leasing fees which are usual and customary for that type of property in that geographic area. The Company generally will be required to reimburse Hines for certain operating costs incurred in providing property management and leasing services pursuant to the property management and leasing agreements. Included in this reimbursement of operating costs will be the cost of personnel and overhead expenses related to such personnel located at the property as well as off-site personnel located in Hines’ headquarters and regional offices, to the extent the same relate to or support the performance of Hines’ duties under the agreement.
	Hines may perform construction management services for the Company for both re-development activities and tenant construction. These fees are considered incremental to the construction effort and will be capitalized to the associated real estate project as incurred. Costs related to tenant construction will be depreciated over the estimated useful life. Costs related to redevelopment activities will be depreciated over the estimated useful life of the associated project. Leasing activities will generally be performed by Hines on the Company’s behalf. Leasing fees will be capitalized and amortized over the life of the related lease. Generally, as compensation for providing development management services, Hines will be paid a fee equal to 3% of the development project costs and as compensation for providing construction management services, an affiliate of Hines also will be paid a contractor’s fee of 5% of the total construction costs of the project.

Noncontrolling_Interests

Noncontrolling Interests	12 Months Ended
	Dec. 31, 2014
Noncontrolling Interest [Abstract]
NONCONTROLLING INTERESTS	NONCONTROLLING INTERESTS
	In December 2012, the Brindleyplace JV issued 2.5 million Series B3 Convertible Preferred Equity Certificates (“CPEC”)to Moorfield as a result of their £2.5 million contribution ($4.1 million based on the exchange rate in effect on the date of contribution). Each CPEC is convertible into one capital share of the Brindleyplace JV at any time. The CPECs may be redeemed at the option of the Brindleyplace JV any time prior to the earlier of the liquidation of the Brindleyplace Project or their expiration on July 7, 2059. If redeemed, they will be redeemed at a price of £1 per CPEC, plus any accrued and unpaid distributions thereon. However, the Brindleyplace JV may elect to satisfy any redemption request through the issuance of one capital share per CPEC.
	In December 2013, the Brindleyplace JV issued 1.2 million Series B3 CPEC to Moorfield as a result of their £1.2 million contribution ($2.0 million based on the exchange rate in effect on the date of contribution). The series B3 CPEC have the same terms as the Series B CPEC described above. In December 2014, the Brindleyplace JV issued 1.3 million Series B3 CPEC to Moorfield as a result of their £1.3 million contribution ($2.0 million based on the exchange rate in effect on the date of contribution).
	Distributions are declared and paid quarterly to Moorfield based on the distributable income of the Brindleyplace Project and payment of the distributions will be subject to the approval of the board of directors of the Brindleyplace JV. During the years ended December 31, 2014, 2013 and 2012, respectively, the Brindleyplace JV declared $4.3 million, $2.8 million and $2.9 million of preferred dividends to Moorfield related to the CPECs. These amounts were included in the net (income) loss attributable to noncontrolling interests in the accompanying consolidated statements of operations and comprehensive income (loss) and offsets net income of $1.5 million and net losses of $0.3 million and $2.0 million that was attributable to Moorfield during the years ended December 31, 2014 and 2013 and 2012, respectively, related to the results of operations of the Brindleyplace JV.
	During the years ended December 31, 2014, 2013, and 2012 the noncontrolling interest partner in the Flagship JV, contributed $0.4 million, $0.6 million, and $1.0 million respectively to the Flagship Capital JV. In accordance with the partnership agreement that governs the joint venture, distributions are declared and paid when the joint venture has available cash (all cash held by the joint venture less what is reasonably needed to reserve or satisfy cash needs) with respect to an investment made by the joint venture. The Flagship Capital JV declared distributions to the noncontrolling interest partner for the years ended December 31, 2014, 2013, and 2012 of $0.3 million, $0.5 million, and $0.3 million, respectively. See Note 1 — Organization for additional information regarding the Flagship Capital JV.
	During the year ended December 31, 2014, the noncontrolling interest partner, an affiliate of Hines, contributed $1.5 million to the WaterWall Place JV, for the funding of the repayment of the construction loan to Hines. See Note 1 — Organization for additional information regarding the WaterWall Place JV.
	During the year ended December 31, 2012, the noncontrolling interest partners in the Aviva Coral Gables JV (formerly known as the Ponce & Bird JV) contributed, in total, $3.0 million in land as their initial capital contribution to the Aviva Coral Gables JV. See Note 1 — Organization for additional information regarding the Aviva Coral Gables JV.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS
	Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities the Company has the ability to access. Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets and inputs other than quoted prices observable for the asset or liability, such as interest rates and yield curves observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. In instances in which the inputs used to measure fair value may fall into different levels of the fair value hierarchy, the level in the fair value hierarchy within which the fair value measurement in its entirety has been determined is based on the lowest level input significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
	Financial Instruments Measured on a Recurring Basis
	As described in Note 7 – Derivative Instruments, the Company entered into several interest rate contracts as economic hedges against the variability of future interest rates on its variable interest rate borrowings. The valuation of these derivative instruments is determined based on assumptions that management believes market participants would use in pricing, using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate contracts have been determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.
	Although the Company has determined the majority of the inputs used to value its interest rate contracts fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties, Eurohypo, PB Capital Corporation, Landesbank Baden-Württemberg, Commonwealth Bank of Australia, Bank of Western Australia, Deutsche Pfandbriefbank AG, Crédit Agricole, SMBC Capital Markets, Inc, and Australia and New Zealand Banking Group Limited. In adjusting the fair values of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds and guarantees. However, as of December 31, 2014 and 2013, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuations of its derivatives. As a result, the Company has determined its derivative valuations are classified in Level 2 of the fair value hierarchy.
	Additionally, as described in Note 7 – Derivative Instruments, the Company has entered into several foreign currency forward contracts as economic hedges against the variability of foreign exchange rates on future international investments. The valuation of these forward contracts is determined based on assumptions that management believes market participants would use in pricing, using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including currency exchange rate curves and implied volatilities. The Company has determined its foreign currency forward contracts valuations are classified in Level 2 of the fair value hierarchy, as they are based on observable inputs but are not traded in active markets.
	The following table sets forth the Company’s derivatives which are measured at fair value on a recurring basis, by level within the fair value hierarchy as of December 31, 2014 and December 31, 2013 (all amounts are in thousands):
					Basis of Fair Value Measurements
	Period	Fair Value of Assets (Liabilities)			Quoted Prices In Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
	December 31, 2014
	Interest rate swaps	$	(2,684	)	$	—	$	(2,684	)	$	—
	Interest rate caps	$	345		$	—	$	345		$	—
	Foreign currency forwards - Assets	$	14,316		$	—	$	14,316		$	—
	Foreign currency forwards - Liabilities	$	(7,164	)	$	—	$	(7,164	)	$	—
	December 31, 2013
	Interest rate swaps	$	(9,329	)	$	—	$	(9,329	)	$	—
	Interest rate caps	$	4,428		$	—	$	4,428		$	—
	Foreign currency forwards - Assets	$	866		$	—	$	866		$	—
	Foreign currency forwards - Liabilities	$	(488	)	$	—	$	(488	)	$	—
	Financial Instruments Fair Value Disclosures
	As of December 31, 2014, the Company estimated that the fair value of its notes payable, which had a book value (including any unamortized discount or premium) of $2.1 billion, was $2.1 billion. As of December 31, 2013, the Company estimated that the fair value of its notes payable, which had a book value (including any unamortized discount or premium) of $2.0 billion, was $2.0 billion. Management has utilized available market information or present value techniques to estimate the amounts required to be disclosed. Although the Company has determined the majority of the inputs used to value its notes payable fall within Level 2 of the fair value hierarchy, the credit quality adjustments associated with its fair value of notes payable utilize Level 3 inputs. However, as of December 31, 2014 and 2013, the Company has assessed the significance of the impact of the credit quality adjustments on the overall valuations of its fair market value of notes payable and has determined that they are not significant. As a result, the Company has determined these financial instruments utilize Level 2 inputs. Since such amounts are estimates that are based on limited available market information for similar transactions, there can be no assurance that the disclosed values could be realized.
	As of December 31, 2014 and 2013, the Company estimated that the book values of its real estate loans receivable approximated their fair values. Although the Company has determined the majority of the inputs used to value its real estate notes receivable fall within Level 2 of the fair value hierarchy, the credit quality adjustments associated with its fair value of real estate notes receivable utilize Level 3 inputs. However, as of December 31, 2014 and 2013, the Company has assessed the significance of the impact of the credit quality adjustments on the overall valuations of its fair market value of real estate notes receivable and has determined that they are not significant. As a result, the Company has determined these financial instruments utilize Level 2 inputs. Since such amounts are estimates that are based on limited available market information for similar transactions, there can be no assurance that the disclosed values could be realized.
	Other financial instruments not measured at fair value on a recurring basis include cash and cash equivalents, restricted cash, tenant and other receivables, accounts payable and accrued expenses, other liabilities, due to affiliates and distributions payable.  The carrying value of these items reasonably approximates their fair value based on their highly-liquid nature and/or short-term maturities. Due to the short-term nature of these instruments, Level 1 inputs are utilized to estimate the fair value of the cash and cash equivalents and restricted cash and Level 2 inputs are utilized to estimate the fair value of the remaining financial instruments.
	Financial Instruments Measured on a Nonrecurring Basis
	Certain long-lived assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments (i.e., impairments) in certain circumstances.  The fair value methodologies used to measure long-lived assets are described in Note 2 ─ Summary of Significant Accounting Policies ─ Investment Property and Lease Intangibles.  The inputs associated with the valuation of long-lived assets are generally included in Level 3 of the fair value hierarchy.  There were no events during the years ended December 31, 2014, 2013 and 2012 which indicated that fair value adjustments of our long-lived assets were necessary.

Reportable_Segments

Reportable Segments	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
REPORTABLE SEGMENTS	REPORTABLE SEGMENTS
	The Company’s real estate investments are geographically diversified and management evaluates the operating performance of each at an individual investment level and considers each investment to be an operating segment. The Company has aggregated all of its operating segments into four reportable segments based on the location of the segment and the underlying asset class. Management has aggregated the Company’s investments that are not office properties in “other” based on the geographic location of the investment due to the Company’s ownership of interests in various different types of investments that do not stand alone as their own reportable segment.
	•	Domestic office investments (11 investments)
	•	Domestic other investments (10 investments)
	•	International office investments (10 investments)
	•	International other investments (9 investments)
	The tables below provide additional information related to each of the Company’s segments, geographic location and a reconciliation to the Company’s net loss, as applicable. “Corporate-Level Accounts” includes amounts incurred by the corporate-level entities which are not allocated to any of the reportable segments (all amounts are in thousands, except for percentages):
			Years Ended December 31,
			2014				2013				2012
	Total Revenue
		Domestic office investments	$	145,941			$	114,480			$	70,943
		Domestic other investments	104,753				62,407				36,712
		International office investments	108,839				68,274				32,123
		International other investments	96,731				77,701				47,462
	Total Revenue		$	456,264			$	322,862			$	187,240
	For the years ended December 31, 2014, 2013 and 2012, the Company’s total revenue was attributable to the following countries:
		Years Ended December 31,
		2014			2013			2012
	United States	55	%		55	%		57	%
	United Kingdom	19	%		15	%		20	%
	Australia	8	%		10	%		6	%
	Poland	7	%		9	%		6	%
	Russia	5	%		6	%		11	%
	France	3	%		3	%		—	%
	Germany	3	%		2	%		—	%
	For the years ended December 31, 2014, 2013 and 2012, the Company’s property revenues in excess of expenses by segment was as follows:
			Years Ended December 31,
			2014				2013				2012
	Property revenues in excess of expenses (1)
		Domestic office investments	$	91,932			$	72,547			$	44,088
		Domestic other investments	67,297				39,413				22,492
		International office investments	114,586				73,226				27,803
		International other investments	45,348				35,583				31,818
	Total property revenues in excess of expenses		$	319,163			$	220,769			$	126,201
	-1	Revenues less property operating expenses, real property taxes and property management fees.
	For the years ended December 31, 2014 and 2013, the Company’s total assets by segment was as follows:
			Years Ended December 31,
			2014				2013
	Total Assets
		Domestic office investments	$	1,227,066			$	1,273,779
		Domestic other investments	1,041,004				789,204
		International office investments	1,237,989				1,176,394
		International other investments	557,003				515,788
		Corporate-level accounts	63,532				48,054
	Total Assets		$	4,126,594			$	3,803,219
	For the years ended December 31, 2014 and 2013, the Company’s total assets were attributable to the following countries:
		Years Ended December 31,
		2014			2013
	United States	56	%		55	%
	United Kingdom	18	%		15	%
	Australia	9	%		9	%
	Poland	7	%		9	%
	Russia	2	%		4	%
	France	4	%		5	%
	Germany	4	%		3	%
	For the years ended December 31, 2014, 2013 and 2012 the Company’s reconciliation to the Company’s net loss is as follows:
		Years Ended December 31,
		2014				2013				2012
	Reconciliation to net income (loss)
	Total property revenues in excess of expenses	$	319,163			$	220,769			$	126,201
	Depreciation and amortization	(193,870		)		(140,187		)		(84,747		)
	Acquisition related expenses	(29,278		)		(42,747		)		(12,633		)
	Asset management and acquisition fees	(53,069		)		(60,490		)		(22,006		)
	General and administrative expenses	(6,782		)		(5,344		)		(3,590		)
Gain (loss) on derivatives	7,322				9,909				1,398
Gain (loss) on sale of real estate investments	64,003				—				—
Foreign currency gains (losses)	(13,074		)		(6,458		)		672
Interest expense	(78,273		)		(60,968		)		(37,915		)
Interest income	506				454				227
Benefit (provision) for income taxes	(5,806		)		(701		)		(1,147		)
Net income (loss)	$	10,842			$	(85,763	)		$	(33,540	)

Supplemental_Cash_Flow_Disclos

Supplemental Cash Flow Disclosures	12 Months Ended
	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
SUPPLEMENTAL CASH FLOW DISCLOSURES	SUPPLEMENTAL CASH FLOW DISCLOSURES
	Supplemental cash flow disclosures for the years ended December 31, 2014, 2013, and 2012 (in thousands):
		2014		2013		2012
	Supplemental Disclosure of Cash Flow Information
	Cash paid for interest	$	66,592	$	53,942	$	32,784
	Cash paid for income taxes	$	4,161	$	4,742	$	4,461
	Supplemental Schedule of Non-Cash Activities
	Distributions declared and unpaid	$	17,558	$	14,143	$	8,777
	Other receivables	$	—	$	5,441	$	4,889
	Distributions reinvested	$	90,198	$	60,585	$	36,981
	Shares tendered for redemption	$	5,505	$	2,287	$	927
	Non-cash net liabilities acquired	$	2,737	$	12,867	$	4,745
	In-kind contribution from noncontrolling interest	$	—	$	—	$	3,000
	Accrued additions to investment property	$	2,373	$	8,538	$	5,524

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES
	In November 2013, Dorsey & Whitney LLP signed a lease renewal for its space in 50 South Sixth located in Minneapolis, Minnesota. In connection with this renewal, the Company committed to fund $20.8 million of tenant improvements and leasing commissions related to its space, to be paid in future periods. As of December 31, 2014, $13.3 million of the Company’s commitment remained unfunded and is recorded in accounts payable and accrued expenses in the accompanying consolidated balance sheet.
	The Company may be subject to various legal proceedings and claims that arise in the ordinary course of business. These matters are generally covered by insurance. While the resolution of these matters cannot be predicted with certainty, management believes the final outcome of such matters will not have a material adverse effect on the Company’s consolidated financial statements.

Quarterly_Financial_Data_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Data [Abstract]
QUARTERLY FINANCIAL DATA (UNAUDITED)	QUARTERLY FINANCIAL DATA (UNAUDITED)
	The following table presents selected unaudited quarterly financial data for each quarter during the years ended December 31, 2014 and 2013 (in thousands except per share amounts):
		Quarters Ended
		March 31, 2014			June 30, 2014			September 30, 2014			December 31, 2014
	Revenues	$	105,123		$	117,840		$	117,705		$	115,596
	Gain (loss) on sale of real estate investments	$	—		$	—		$	—		$	64,003
	Net (income) loss attributable to noncontrolling interests	$	(947	)	$	(1,097	)	$	(964	)	$	(2,756	)
	Net income (loss) attributable to common stockholders	$	(36,389	)	$	(10,580	)	$	3,214		$	48,833
	Income (loss) per common share, basic and diluted	$	(0.15	)	$	(0.04	)	$	0.01		$	0.18
		Quarters Ended
		March 31, 2013			June 30, 2013			September 30, 2013			December 31, 2013
	Revenues	$	60,032		$	75,824		$	90,081		$	96,925
	Net (income) loss attributable to noncontrolling interests	$	(521	)	$	(437	)	$	(616	)	$	(1,599	)
	Net income (loss) attributable to common stockholders	$	(32,492	)	$	(32,556	)	$	(13,442	)	$	(10,446	)
	Income (loss) per common share, basic and diluted	$	(0.20	)	$	(0.19	)	$	(0.07	)	$	(0.05	)

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS
	Simon Hegele Logistics Portfolio - Phase 2
	In January 2015, the Company acquired the second phase of the Simon Hegele Logistics portfolio. The acquisition consisted of a 240,000 square foot expansion space located in Forchheim, Germany. The Company previously acquired a building in the first phase of the portfolio, and had additional rights to purchase the expansion space. The expansion space is 100% leased to a single tenant. The contract purchase price for the second phase of the Simon Hegele Logistics portfolio was €24.7 million (approximately $29.5 million based on an exchange rate of $1.19 per EUR as of the transaction date), exclusive of transaction costs and working capital reserves.
	The Company has not concluded its accounting for this recent acquisition, but it expects that the purchase price primarily will be allocated to building, land, and intangible lease assets and liabilities.
	The Summit
	In March 2015, the Company acquired the Summit, a portfolio of Class A office towers located in Bellevue, Washington that consists of 524,130 square feet, and is 94.7% leased. The purchase price for the Summit was $320.0 million, exclusive of transaction costs and working capital reserves. The acquisition includes a 43,413 square foot development site with a completed subterranean garage.
	The Company has not concluded its accounting for this recent acquisition, but it expects that the purchase price primarily will be allocated to building, land, and intangible lease assets and liabilities.
	The Harder German Logistics Portfolio Acquisition
	In December 2014 and January 2015, the Company entered into contracts to acquire the Harder German Logistics portfolio, consisting of three logistic assets located in the German cities of: Duisburg, Nuremburg, and Karlsdorf. The Harder German Logistics portfolio consists of 1.3 million square feet of net rentable area, including a 0.7 million square foot development site. The remaining assets of 0.6 million are 100% leased. The contract purchase price for the Harder German Logistics portfolio was €116.7 million (approximately $137.5 million based on an average exchange rate of $1.18 per EUR as of the dates the contracts were signed), exclusive of transaction costs and working capital reserves. The Company anticipates that it will complete the acquisition of the assets located in Karlsdorf and Nuremburg in March 2015. The acquisition of the remaining asset located in Duisburg is not expected to close until the development of the asset is complete. The Duisburg asset consists of the 0.7 million square foot development site. The Company expects to complete the acquisition of the asset in Duisburg no later than December 31, 2015.
	The Company has not concluded its accounting for this pending acquisition, but it expects that the purchase price primarily will be allocated to building, land, and intangible lease assets and liabilities.
	Derivative Instruments
	In March 2015, the Company executed two interest rate cap corridor agreements with an aggregate notional amount of $500.0 million as economic hedges against the variability of future interest rates on its Revolving Loan Commitment and Term Loan Commitment. The Company has not designated any of these derivatives as hedges for accounting purposes.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation and Qualifying Accounts	Schedule II — Valuation and Qualifying Accounts
	Description		Balance at the Beginning of the Period		Charged to Costs and Expenses		Deductions (a)			Balance at the End of the Period
			(amounts in thousands)
	Allowance for Doubtful Accounts as of December 31, 2014		$	2,011	$	841	$	(980	)	$	1,872
	Allowance for Doubtful Accounts as of December 31, 2013		$	330	$	2,105	$	(424	)	$	2,011
	Allowance for Doubtful Accounts as of December 31, 2012		$	—	$	1,110	$	(780	)	$	330
	(a)	Write-offs of accounts receivable previously reserved.

Schedule_III_Real_Estate_and_A

Schedule III - Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2014
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
Schedule III - Real Estate Assets and Accumulated Depreciation	Schedule III — Real Estate Assets and Accumulated Depreciation
	December 31, 2014
									Initial Cost (b)											Gross Amount at Which Carried at 12/31/2014
	Description (a)		Location		Encumbrances				Land				Buildings and Improvements		Total		Costs Capitalized Subsequent to Acquisition (c)			Land		Buildings and Improvements		Total (d)		Accumulated Depreciation (e)			Date of Construction	Date Acquired
	17600 Gillette		Irvine, California		$	—			$	2,800			$	7,250	$	10,050	$	51		$	2,800	$	7,301	$	10,101	$	(831	)	1977	10-Jun
	Brindleyplace Project		Birmingham, United Kingdom		188,034				—				207,592		207,592		23,491			—		231,083		231,083		(24,963		)	1997 - 2000	10-Jul
	Hock Plaza		Durham, North Carolina		75,148				1,220				69,704		70,924		—			1,220		69,704		70,924		(7,519		)	2004	10-Sep
	Southpark		Austin, Texas		18,227				3,920				20,507		24,427		—			3,920		20,507		24,427		(2,155		)	2001	10-Oct
	Fifty South Sixth		Minneapolis, Minnesota		95,000				1,390				134,262		135,652		469			1,390		134,731		136,121		(14,025		)	2001	10-Nov
	FM Logistic		Moscow, Russia		—				5,320				51,588		56,908		(28,732		)	2,634		25,542		28,176		(2,351		)	1998 - 2004	11-Apr
	Gogolevsky 11		Moscow, Russia		35,100				—				85,126		85,126		(41,268		)	—		43,858		43,858		(4,165		)	1996	11-Aug
	250 Royall		Canton, Massachusetts		—				8,910				22,860		31,770		—			8,910		22,860		31,770		(1,892		)	2005	11-Sep
	Campus at Marlborough		Marlborough, Massachusetts		—				23,790				54,230		78,020		1,271			23,310		55,981		79,291		(4,387		)	1999	11-Oct
	Komo Plaza		Seattle, Washington		—				19,560				111,182		130,742		4,507			19,560		115,689		135,249		(8,706		)	2000 - 2003	11-Dec
	9320 Excelsior		Hopkins, Minnesota		—				2,730				51,110		53,840		—			2,730		51,110		53,840		(3,851		)	2010	11-Dec
	WaterWall Place		Houston, Texas		44,092				8,229				54,825		63,054		—			8,229		54,825		63,054		(1,267		)	2012	11-Dec
	Aviva Coral Gables		Miami, Florida		56,031				12,112				48,892		61,004		—			12,112		48,892		61,004		(102		)	2012	12-Jul
	Poland Logistics Portfolio		Upper Silesia, Warsaw and Wroclaw, Poland		76,797				25,893				97,627		123,520		(9,100		)	23,048		91,372		114,420		(8,224		)	1995 - 2009	March - 12 & October - 12
	100 Brookes Street		Brisbane, Australia		35,254				8,600				41,404		50,004		(9,826		)	6,900		33,278		40,178		(2,051		)	2008	12-Jul
	Minneapolis Retail Center		Minneapolis, Minnesota		65,500				30,792				78,711		109,503		1,318			30,792		80,029		110,821		(4,766		)	1974	August - 12 & December - 12
	550 Terry Francois		San Francisco, California		—				41,270				109,760		151,030		—			41,270		109,760		151,030		(6,427		)	2002	12-Aug
	Mercedes Benz Bank		Stuttgart, Germany		41,346				11,953				47,643		59,596		(5,994		)	10,733		42,869		53,602		(2,036		)	2003	13-Feb
	One Westferry Circus		London, England		74,554				—				48,874		48,874		1,881			—		50,755		50,755		(2,338		)	1992	13-Feb
	465 Victoria		Sydney, Australia		43,396				26,566				48,788		75,354		(15,316		)	21,155		38,883		60,038		(1,791		)	1995	13-Feb
	Riverside Center		Boston, Massachusetts		—				45,888				125,014		170,902		214			45,888		125,228		171,116		(5,484		)	2000	13-Mar
	New City		Warsaw, Poland		95,934				—				115,208		115,208		(8,532		)	—		106,676		106,676		(2,372		)	2010	13-Mar
	825 Ann		Brisbane, Australia		66,091				20,669				83,802		104,471		(21,847		)	16,328		66,296		82,624		(2,760		)	2013	13-Apr
	The Campus at Playa Vista		Los Angeles, California		115,000				41,160				125,567		166,727		6			41,160		125,573		166,733		(5,214		)	2009-2010	13-May
	Perspective Defense		Paris, France		85,085				29,039				109,704		138,743		(10,107		)	26,923		101,713		128,636		(3,978		)	2007	13-Jun
									Initial Cost (b)											Gross Amount at Which Carried at 12/31/2014
	Description (a)		Location		Encumbrances				Land				Buildings and Improvements		Total		Costs Capitalized Subsequent to Acquisition (c)			Land		Buildings and Improvements		Total (d)		Accumulated Depreciation (e)			Date of Construction	Date Acquired
	The Markets at Town Center		Jacksonville, Florida		—				52,130				76,067		128,197		—			52,130		76,067		128,197		(2,746		)	2009	13-Jul
	The Avenue		Nashville, Tennessee		—				54,940				71,990		126,930		—			54,940		71,990		126,930		(2,500		)	2007	13-Aug
	2300 Main		Irvine, California		—				3,570				27,940		31,510		—			3,570		27,940		31,510		(938		)	2002	13-Aug
	Fiege Mega Centre		Erfurt, Germany		28,373				10,107				36,005		46,112		(5,112		)	8,983		32,017		41,000		(966		)	1995	13-Oct
	55 M Street		Washington, D.C.		72,000				24,810				85,277		110,087		289			24,810		85,566		110,376		(2,271		)	2009	13-Dec
	The Rim		San Antonio, Texas		—				65,890				90,900		156,790		90			65,890		90,990		156,880		(2,013		)	2006-2014	14-Feb
	25 Cabot Square		London, England		192,209				—				165,121		165,121		(9,894		)	—		155,227		155,227		(2,966		)	1991	14-Mar
	Simon Hegele Logistics		Forchheim, Germany		26,106				8,481				34,663		43,144		(4,683		)	7,560		30,901		38,461		(449		)	2012-2014	14-Jun
	818 Bourke		Melbourne, Australia		74,627				36,487				82,867		119,354		(9,942		)	33,449		75,963		109,412		(317		)	2008	14-Oct
					$	1,603,904			$	628,226			$	2,622,060	$	3,250,286	$	(146,766	)	$	602,344	$	2,501,176	$	3,103,520	$	(138,821	)
	(a)	Assets consist of institutional-quality office, mixed-use and retail properties, industrial/distribution facilities and multi-family development.
	(b)	Components of initial cost for properties acquired using a foreign currency were converted using the currency exchange rate as of the date of acquisition.
	(c)	Includes the effect of changes in the exchange rate between the date of acquisition and December 31, 2014 for properties that are denominated in a foreign currency.
	(d)	The aggregate cost for federal income tax purposes is $3.2 billion as of December 31, 2014.
	(e)	Real estate assets are depreciated or amortized using the straight-line method over the useful lives of the assets by class. The estimated useful lives for computing depreciation are generally 10 years for furniture and fixtures, 15-20 years for electrical and mechanical installations and 40 years for buildings.
	The changes in total real estate assets for the years ended December 31, (in thousands):
		2014				2013				2012
	Gross real estate assets
	Balance, beginning of period	$	2,894,264			$	1,529,675			$	969,421
	Additions during the period:
	Acquisitions	484,499				1,322,485				509,335
	Other additions	45,879				61,259				28,149
	Disposals of fully-depreciated assets	(23		)		—				—
	Costs of real estate sold	(139,539		)		—				—
	Effect of changes in foreign currency exchange rates	(181,560		)		(19,155		)		22,770
	Balance, end of period	$	3,103,520			$	2,894,264			$	1,529,675
	Accumulated Depreciation
	Balance, beginning of period	$	(94,414	)		$	(47,197	)		$	(18,991	)
	Depreciation	(64,846		)		(46,973		)		(27,361		)
	Effect of changes in foreign currency exchange rates	9,573				(244		)		(845		)
	Disposals of fully-depreciated assets	23				—				—
	Retirement or sales of assets	10,843				—				—
	Balance, end of period	$	(138,821	)		$	(94,414	)		$	(47,197	)

Schedule_IV_Mortgage_Loans_on_

Schedule IV - Mortgage Loans on Real Estate	12 Months Ended
	Dec. 31, 2014
Mortgage Loans on Real Estate [Abstract]
Schedule IV - Mortgage Loans on Real Estate	Schedule IV — Mortgage Loans on Real Estate
	December 31, 2014
	(amounts in thousands)
	Description		Location		Interest Rate			Final Maturity Date		Periodic Payment Terms		Prior Liens		Face Amount of Mortgages		Carrying Amount of Mortgages (a)
	Construction Loans:
	Multi-family
	@1377		Atlanta, GA		10	%		7/1/16		No payment until completion		—		3,962		3,962
	Falls of Kirkwood		Houston, TX		8	%		10/12/15		Monthly payments of principal and interest based on a 30-year amortization schedule		—		6,300		6,222
	Falls of Town Park Apartments		Houston, TX		7.75	%		12/30/15		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		5,327		5,227
	Manor Palms		Austin, TX		7	%		12/25/15		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		4,109		3,979
	Dymaxion Apartments		San Antonio, TX		7.6	%		12/15/16		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		8,500		7,684
	Marbach Park Apartments		San Antonio, TX		7.6	%		12/15/16		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		9,500		7,676
	Office
	Finesilver		San Antonio, TX		6.45	%		7/31/16		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		7,233		5,165
	Industrial
	Motor Circle		Dallas, TX		8	%		12/28/15		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		3,175		2,423
	Shopping Centers
	Houston Retail Portfolio		Houston, TX		7.6	%		8/2/15		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		11,804		11,457
	Precinct Villages		North Richland Hills, TX		8.5	%		3/17/16		Monthly interest- only payments for first year; then amortizes based on a 25-year amortization schedule.		—		2,595		1,811
	Randalls		Pasadena and Friendswood, TX		6.25	%		7/28/17		Monthly interest- only payments for first 18-months; then amortizes based on a 25-year amortization schedule.		—		10,939		8,110
	The Rim		San Antonio, TX		8.5	%		9/7/15		No payment until completion		—		29,800		11,324
												$	—	$	103,244	$	75,040
	(a)	The aggregate cost for federal income tax purposes is $75.0 million as of December 31, 2014.
	Changes in mortgage loans on real estate are summarized below (in thousands):
			2014				2013				2012
	Balance at beginning of period		$	43,591			$	35,124			$	4,919
	Additions during period:
	New loans		45,680				18,633				30,003
	Additional advances on existing loans		4,736				1,389				2,554
	Interest income added to principal		525				842				755
	Deductions during period:
	Collection of principal		(19,492		)		(12,397		)		(3,107		)
	Balance at close of period		$	75,040			$	43,591			$	35,124

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Use of Estimates	Use of Estimates
	The Company’s consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The preparation of the consolidated financial statements requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities and contingencies as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. The Company evaluates its assumptions and estimates on an ongoing basis. The Company bases its estimates on historical experience and on various other assumptions that the Company believes to be reasonable under the circumstances. Additionally, application of the Company’s accounting policies involves exercising judgments regarding assumptions as to future uncertainties. Actual results may differ from these estimates under different assumptions or conditions.
Basis of Presentation	Basis of Presentation
	The consolidated financial statements of the Company include the accounts of Hines Global REIT, Inc., the Operating Partnership and its wholly-owned subsidiaries and the joint ventures as well as amounts related to noncontrolling interests. All intercompany balances and transactions have been eliminated in consolidation.
	The Company evaluates the need to consolidate joint ventures in accordance with GAAP. In accordance with GAAP, the Company will consolidate joint ventures that are determined to be variable interest entities for which it is the primary beneficiary. Further, partially owned real estate joint ventures over which the Company has a controlling financial interest are consolidated in its financial statements. In determining if the Company has a controlling financial interest, it considers factors such as ownership interest, authority to make decisions, kick-out rights and substantive participating rights. Management continually analyzes and assesses reconsideration events, including changes in these factors, to determine if the consolidation treatment remains appropriate. Partially owned real estate joint ventures where the Company does not have a controlling financial interest, but has the ability to exercise significant influence, are accounted for using the equity method.
	The Company’s investments in partially owned real estate joint ventures are reviewed for impairment periodically if events or circumstances change indicating that the carrying amount of its investments may not be recoverable. In such an instance, the Company will record an impairment charge if it determines that a decline in the value of an investment below its fair value is other than temporary. The Company’s analysis will be dependent on a number of factors, including the performance of each investment, current market conditions, and its intent and ability to hold the investment to full recovery. Based on the Company’s analysis of the facts and circumstances at each reporting period, no impairment was recorded related to its investments in unconsolidated, partially owned real estate joint ventures for the years ended December 31, 2014, 2013, and 2012. However, if market conditions deteriorate in the future and result in lower valuations or reduced cash flows of the Company’s investments, impairment charges may be recorded in future periods.
International Operations	International Operations
	The British pound (“GBP”) is the functional currency for the Company’s subsidiaries operating in the United Kingdom, the Russian rouble (“RUB”) is the functional currency for the Company’s subsidiaries operating in Russia, the Polish zloty (“PLN”) is the functional currency for the Company’s subsidiaries operating in Poland, the Australian dollar (“AUD”) is the functional currency for the Company’s subsidiaries operating in Australia and the Euro (“EUR”) is the functional currency for the Company’s subsidiaries operating in Germany and France.
	These subsidiaries have translated their financial statements into U.S. dollars for reporting purposes. Assets and liabilities are translated at the exchange rate in effect as of the balance sheet date while income statement accounts are translated using the average exchange rate for the period and significant nonrecurring transactions using the rate on the transaction date. Gains or losses resulting from translation are included in accumulated other comprehensive income (loss) within stockholders’ equity. Foreign currency transaction gains and losses are recorded in foreign currency gains (losses) on the consolidated statement of operations and result from the effect of changes in exchange rates on transactions denominated in currencies other than a subsidiary’s functional currency, including transactions between consolidated subsidiaries. An exception is made where an intercompany loan or advance is deemed to be of a long-term investment nature, in which instance foreign currency transaction gains or losses are included as currency translation adjustments and are reported in the consolidated statement of equity as accumulated other comprehensive gains or losses.
Investment Property and Lease Intangibles	Investment Property and Lease Intangibles
	Real estate assets acquired by the Company are stated at fair value at the date of acquisition less accumulated depreciation. Depreciation is computed using the straight-line method. The estimated useful lives for computing depreciation are generally 10 years for furniture and fixtures, 15-20 years for electrical and mechanical installations and 40 years for buildings. Major replacements that extend the useful life of the assets are capitalized and maintenance and repair costs are expensed as incurred.
	Acquisitions of properties are accounted for utilizing the acquisition method and, accordingly, are recorded at the estimated fair values of the assets acquired and liabilities assumed. The results of operations of acquired properties are included in the Company’s results of operations from their respective dates of acquisition. Estimates of fair values are based upon estimates of future cash flows and other valuation techniques that the Company believes are similar to those used by market participants and are used to record the purchase of identifiable assets acquired, such as land, buildings and improvements, equipment and identifiable intangible assets related to in-place leases and liabilities assumed, such as amounts related to acquired out-of-market leases, asset retirement obligations, mortgage notes payable. Values of buildings and improvements are determined on an as if vacant basis. Initial valuations are subject to change until such information is finalized, no later than 12 months from the acquisition date. Acquisition-related costs such as transaction costs and acquisition fees paid to the Advisor are expensed as incurred.
	The estimated fair value of acquired in-place leases are the costs the Company would have incurred to lease the properties to the occupancy level of the properties at the date of acquisition. Such estimates include the fair value of leasing commissions, legal costs and other direct costs that would be incurred to lease the properties to such occupancy levels. Additionally, the Company evaluates the time period over which such occupancy levels would be achieved. Such evaluation will include an estimate of the net market-based rental revenues and net operating costs (primarily consisting of real estate taxes, insurance and utilities) that would be incurred during the lease-up period. Acquired in-place leases as of the date of acquisition are amortized over the remaining lease terms. Should a tenant terminate its lease, the unamortized portion of the in-place lease value is charged to amortization expense.
	Acquired out-of-market lease values (including ground leases) are recorded based on the present value (using a discount rate that reflects the risks associated with the lease acquired) of the difference between the contractual amounts paid pursuant to the in-place leases and management’s estimate of fair market value lease rates for the corresponding in-place leases. The capitalized out-of-market lease values are amortized as adjustments to rental revenue (or ground lease expense, as applicable) over the remaining terms of the respective leases, which include periods covered by bargain renewal options. Should a tenant terminate its lease, the unamortized portion of the out-of-market lease value is charged to rental revenue.
	Management estimates the fair value of assumed mortgage notes payable based upon indications of then-current market pricing for similar types of debt with similar maturities. Assumed mortgage notes payable are initially recorded at their estimated fair value as of the assumption date, and the difference between such estimated fair value and the outstanding principal balance of the note will be amortized over the life of the mortgage note payable.
Impairment of Investment Property	Real estate assets are reviewed for impairment each reporting period if events or changes in circumstances indicate that the carrying amount of the individual property may not be recoverable. In such an event, a comparison will be made of the current and projected operating cash flows and expected proceeds from the eventual disposition of each property on an undiscounted basis to the carrying amount of such property. If the carrying amount exceeds the undiscounted cash flows, it would be written down to the estimated fair value to reflect impairment in the value of the asset. The determination of whether investment property is impaired requires a significant amount of judgment by management and is based on the best information available to management at the time of the evaluation.
Cash and Cash Equivalents	Cash and Cash Equivalents
	The Company considers all short-term, highly liquid investments that are readily convertible to cash with an original maturity of three months or less at the time of purchase to be cash equivalents.
Restricted Cash	Restricted Cash
	The Company has restricted cash primarily related to certain escrow accounts required by several of the Company’s mortgage agreements.
Concentration of Credit Risk	Concentration of Credit Risk
	As of December 31, 2014, the Company had cash and cash equivalents and restricted cash deposited in certain financial institutions in excess of federally insured levels. Management regularly monitors the financial stability of these financial institutions in an effort to manage the Company’s exposure to any significant credit risk in cash and cash equivalents or restricted cash.
	In addition, as of December 31, 2014, the Company had $84.5 million of cash and cash equivalents deposited in certain financial institutions located in the United Kingdom, Russia, Poland, Australia, Germany, and France. Management regularly monitors the financial stability of these financial institutions in an effort to manage its exposure to any significant credit risk in cash and cash equivalents.
Tenant and Other Receivables	Tenant and Other Receivables
	Receivable balances consist primarily of base rents, tenant reimbursements and receivables attributable to straight-line rent.  An allowance for the uncollectible portion of tenant and other receivables is determined based upon an analysis of the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area in which the property is located.
Deferred Leasing and Financing Costs	Deferred Leasing Costs
	Direct leasing costs, primarily consisting of third-party leasing commissions, tenant inducements and legal costs are capitalized and amortized over the life of the related lease. Tenant inducement amortization is recorded as an offset to rental revenue and the amortization of other direct leasing costs is recorded in amortization expense.
	Deferred Financing Costs
	Deferred financing costs consist of direct costs incurred in obtaining debt financing, including the financing fees paid to the Advisor (see Note 9 – Related Party Transactions). These costs are amortized into interest expense on a straight-line basis, which approximates the effective interest method, over the terms of the obligations.
Real Estate Loans Receivable	Real Estate Loans Receivable
	Real estate loans receivable are shown at cost, net of any applicable allowance for uncollectibility and net of deferred loan origination fees. The Company defers certain loan origination fees and amortizes them as an adjustment of yield over the term of the related real estate loan receivable. The related amortization of the deferred loan origination fees are recorded in other revenue in the accompanying consolidated statement of operations and comprehensive income (loss). An allowance for the uncollectible portion of the real estate loans receivable is determined based upon an analysis of the economic conditions in the area in which the property is located and credit quality indicators which include: borrower’s payment history, the financial condition of the borrower, and business conditions in the industry in which the borrower operates.
	Additionally, a real estate loan receivable is considered to be impaired, when based upon current events, it is probable that we will be unable to collect all amounts due according to the existing contractual terms. If a real estate loan receivable is considered to be impaired, the amount of loss is calculated by comparing the recorded investment to the value determined by discounting the expected future cash flows at its effective interest rate or to the value of the underlying collateral if the real estate loan receivable is collateral dependent. Evaluating real estate loans receivable for potential impairment can require management to exercise significant judgment.
Revenue Recognition	Revenue Recognition
	Rental payments are generally paid by the tenants prior to the beginning of each month. As of December 31, 2014 and December 31, 2013, respectively, the Company recorded liabilities of $34.6 million and $27.2 million related to prepaid rental payments which were included in other liabilities in the accompanying consolidated balance sheets. The Company recognizes rental revenue on a straight-line basis over the life of the lease including rent holidays, if any. Straight-line rent receivable was $47.4 million and $26.9 million as of December 31, 2014 and December 31, 2013, respectively. Straight-line rent receivable consists of the difference between the tenants’ rents calculated on a straight-line basis from the date of acquisition or lease commencement over the remaining terms of the related leases and the tenants’ actual rents due under the lease agreements and is included in tenant and other receivables in the accompanying consolidated balance sheets. Revenues associated with operating expense recoveries are recognized in the period in which the expenses are incurred based upon the tenant lease provisions. Revenues relating to lease termination fees are recognized on a straight-line basis amortized from the time that a tenant’s right to occupy the leased space is modified through the end of the revised lease term.
	Other revenues consist primarily of parking revenue, tenant reimbursements and interest on loans receivable. Parking revenue represents amounts generated from contractual and transient parking and is recognized in accordance with contractual terms or as services are rendered. Other revenues relating to tenant reimbursements are recognized in the period that the expense is incurred.
Issuer Costs	Issuer Costs
	The Company reimburses the Advisor for any issuer costs related to the Company’s public offerings that it pays on the Company’s behalf.  Such costs consist of, among other costs, expenses of the Company’s organization, legal, accounting, bona fide out-of-pocket itemized and detailed due diligence costs, printing, filing fees, transfer agent costs, postage, escrow fees, data processing fees, advertising and sales literature and other offering-related costs. Organizational issuer costs, such as expenses associated with the formation of the Company and its board of directors are expensed and other issuer costs related to our public offerings are recorded as an offset to additional paid-in capital.
	Dealer Manager Agreement
	The Dealer Manager received a selling commission of up to 7.5% of gross offering proceeds and a dealer manager fee of up to 2.5% of gross offering proceeds, both of which were recorded as an offset to additional paid-in-capital in the Company’s financial statements. Pursuant to separately negotiated agreements, the Dealer Manager reallowed up to 7.0% of gross proceeds as a selling commission and up to 1.5% of gross proceeds from its dealer manager fee as a marketing fee to broker-dealers participating in the Company’s public offerings. The Dealer Manager paid broker-dealers up to an additional 1.0% of the gross offering proceeds as reimbursements for distribution and marketing-related costs and expenses. No selling commissions or dealer manager fees were or will be paid for sales under the Company’s distribution reinvestment plan.
Income Taxes	Income Taxes
	The Company has elected to be treated as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”).  The Company’s management believes that it operates in such a manner as to qualify for treatment as a REIT and intends to operate in the foreseeable future in such a manner so that it will remain qualified as a REIT for federal income tax purposes. Accordingly, no provision has been made for U.S. federal income taxes for the years ended December 31, 2014, 2013 and 2012 in the accompanying consolidated financial statements. In 2014, 2013 and 2012, income tax expense recorded by the Company was primarily comprised of foreign income taxes related to the operation its international properties. The Company does not believe it has any uncertain tax positions or unrecognized tax benefits requiring disclosure.
Redemption of Common Stock	Redemption of Common Stock
	The Company complies with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification 480 “Distinguishing Liabilities from Equity” which requires, among other things, that financial instruments that represent a mandatory obligation of the Company to repurchase shares be classified as liabilities and reported at settlement value.  When approved, the Company will reclassify such obligations from equity to an accrued liability based upon their respective settlement values.
Per Share Data	Per Share Data
	Net income (loss) per common share is calculated by dividing the net income (loss) attributable to common stockholders for each period by the weighted average number of common shares outstanding during such period. Net income (loss) per common share on a basic and diluted basis is the same because the Company has no potentially dilutive common shares outstanding.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	In February 2013, FASB issued amendments to provide guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of obligation within the scope of this guidance is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The adoption of this guidance did not have a material impact on the Company’s financial statements.
	In March 2013, FASB issued guidance on releasing cumulative translation adjustments when a reporting entity ceases to have a controlling financial interest in a subsidiary or group of assets that is a business within a foreign entity. The guidance was effective on a prospective basis for fiscal years and interim reporting periods within those years beginning after December 15, 2013. The adoption of this guidance did not have a material impact on the Company’s financial statements.
	In July 2013, FASB issued amendments to the Accounting Standards Codification (the “Codification”) to provide guidance on the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2013. The adoption of this guidance did not have a material impact on the Company’s financial statements.
	In March 2014, FASB made technical corrections and improvements related to glossary terms in the Codification.  The amendments were effective upon issuance and did not have a material impact on the Company’s financial statements.
	In April 2014, FASB issued amendments to the Codification to provide guidance on reporting discontinued operations. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 31, 2014 and early adoption is permitted. The Company has elected to adopt these amendments early, effective January 1, 2014. As a result, the Company did not report the dispositions of Stonecutter Court and 144 Montague in discontinued operations for the year ended December 31, 2014. See Note 3 — Investment Property for additional information regarding the sales for 144 Montague and Stonecutter Court. These sales did not qualify as discontinued operations as of December 31, 2014.
	In May 2014, FASB issued amendments to the Codification to provide guidance on recognizing revenue from contracts with customers. The amendments also replace prior guidance regarding the recognition of revenue from sales of real estate, except for revenue from sales that are part of a sale-leaseback transaction. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. The Company is currently assessing the impact, if any, that the adoption of these amendments will have on its financial statements.
	In August 2014, FASB issued amendments to the Codification to provide guidance on management’s responsibility to evaluate whether there are conditions or events that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued or are available to be issued. These amendment are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016 and early adoption is permitted. The Company does not believe the adoption of this guidance will have a material impact on the Company’s financial statements. The Company did not elect to early adopt these amendments.
	In January 2015, FASB issued amendments to the Codification to provide guidance on the disclosure of extraordinary items. The amendments eliminate the concept of extraordinary items from GAAP. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 and early adoption is permitted. The Company does not believe the adoption of this guidance will have a material impact on the Company’s financial statements. The Company did not elect to early adopt these amendments.
	In February 2015, the FASB issued amendments to the Codification to provide guidance on consolidation evaluation for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. These amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2015 and early adoption is permitted. The Company is currently assessing the impact, if any, that the adoption of these amendments will have on its financial statements.
Derivative Instruments	The Company has entered into several interest rate swap contracts and interest rate cap agreements as economic hedges against the variability of future interest rates on its variable interest rate borrowings.  The Company’s interest rate swaps economically fixed the interest rates on each of the loans to which they relate and the interest rate cap contracts have economically limited the interest rate on the loans to which they relate.   The Company has not designated any of these derivatives as hedges for accounting purposes. See Note 11 — Fair Value Measurements for additional information regarding the fair value of our interest rate contracts.
	The Company also entered into foreign currency forward contracts as economic hedges against the variability of foreign exchange rates on future international investments in 2014. These forward contracts economically fixed the currency exchange rates on each of the investments to which they related. The Company did not designate any of these contracts as fair value or cash flow hedges for accounting purposes. See Note 11 — Fair Value Measurements for additional information regarding the fair value of our foreign currency forwards.
Fees and Expense Reimbursements	Acquisition Fee – Prior to April 2012, the Advisor received an acquisition fee equal to 2.0% of (i) the purchase price of each real estate investment the Company acquired or originated, including any debt attributable to such investments or the principal amounts of any loans originated directly by the Company and (ii) with respect to indirect investments through another entity, such entity’s pro rata share of the gross asset value of all real estate investments held by such entity. In March 2012, the Advisory Agreement was amended to increase the acquisition fee to 2.25% of these amounts.
	Asset Management Fee – The Advisor receives an asset management fee equal to 0.125% per month of the net equity capital invested by the Company in real estate investments as of the end of each month. In April 2012, the Advisor agreed to waive the asset management fee otherwise payable to it pursuant to the Advisory Agreement for each quarter in 2012 and 2013, to the extent that the Company’s modified funds from operations (“MFFO”) for a particular quarter, as disclosed in each of its quarterly reports, amounts to less than 100% of the aggregate distributions declared for such quarter. As a result of these waivers, the Advisor waived $12.2 million of asset management fees payable to it for these periods, in aggregate. These fee waivers are not deferrals and accordingly, these fees will not be paid to the Advisor in cash at any time in the future.
	Additionally, the Advisor agreed to waive asset management fees otherwise payable to it for the years ended December 31, 2014 and 2015, respectively, to the extent that our MFFO for the years ended December 31, 2014 and 2015, as disclosed in our Annual Report on Form 10-K for such year, amounts to less than 100% of the aggregate distributions declared to our stockholders for such year. However, because MFFO exceeded distributions declared to the Company’s stockholders during the year ended December 31, 2014, the Advisor did not waive any asset management fees.
	During the years ended December 31, 2014, 2013 and 2012, the Company incurred asset management fees of $34.9 million, $20.4 million and $5.9 million, respectively.
	Disposition Fee – The Advisor or its affiliates also will be paid a disposition fee of 1.0% of the sales price of any real estate investments sold or 1.0% of the Company’s pro rata share of the sales price with respect to the Company’s indirect investments. As of December 31, 2014, the Company incurred $2.5 million in disposition fees as a result of its dispositions of 144 Montague and Stonecutter Court.
	Special OP Units –Hines Global REIT Associates Limited Partnership, an affiliate of Hines, owns the special units of the Operating Partnership (“Special OP Units”), which entitle them to receive distributions in an amount equal to 15% of distributions, including from sales of real estate investments, refinancings and other sources, but only after the Company’s stockholders have received, or are deemed to have received, in the aggregate, cumulative distributions equal to their invested capital plus an 8.0% cumulative, non-compounded annual pre-tax return on such invested capital.
	At the sole discretion of the Advisor, the acquisition fees, asset management fees, debt financing fees and disposition fees are payable, in whole or in part, in cash or units of the Operating Partnership (“OP Units”). For the purposes of the payment of these fees, each OP Unit will be valued at the per-share offering price of the Company’s common stock in its most recent public offering less selling commissions and dealer manager fees. Upon the Advisor’s request, each OP unit can be repurchased for cash or can be converted into one share of the Company’s common stock. The decision to redeem each OP unit for cash or shares is at the Company’s option except in certain circumstances such as the Company’s decision to list its shares on a national securities exchange, a liquidation event or upon termination or nonrenewal of the Advisory Agreement for any reason other than by the Advisor. The Company will recognize the expense related to these OP Units as the related service is performed, as each OP Unit will be fully vested upon issuance.
	The Company reimburses the Advisor for all expenses paid or incurred by the Advisor in connection with the services provided to the Company, subject to the limitation that the Company will not reimburse the Advisor for any amount by which its operating expenses (including the asset management fee) at the end of the four preceding fiscal quarters exceeds the greater of: (A) 2% of its average invested assets, or (B) 25% of its net income determined without reduction for any additions to reserves for depreciation, bad debts or other similar non-cash reserves and excluding any gain from the sale of the Company’s assets for that period. Notwithstanding the above, the Company may reimburse the Advisor for expenses in excess of this limitation if a majority of the independent directors determines that such excess expenses are justified.
	In addition, as described in Note 2 – Summary of Significant Accounting Policies – Issuer Costs, the Company reimburses the Advisor for any issuer costs paid on its behalf. However, the total compensation related to issuer costs, selling commissions and dealer manager fees may not exceed 15% of gross proceeds from the Offering.
Property Management and Leasing Fees	Property Management and Leasing Agreements
	The Company pays Hines fees for the management and leasing of some of its properties. Property management fees are equal to a market-based percentage of the gross revenues of the properties managed by Hines or the amount of property management fees recoverable from tenants of the properties managed by Hines under their leases. In addition, if Hines provides leasing services with respect to a property, the Company will pay Hines leasing fees which are usual and customary for that type of property in that geographic area. The Company generally will be required to reimburse Hines for certain operating costs incurred in providing property management and leasing services pursuant to the property management and leasing agreements. Included in this reimbursement of operating costs will be the cost of personnel and overhead expenses related to such personnel located at the property as well as off-site personnel located in Hines’ headquarters and regional offices, to the extent the same relate to or support the performance of Hines’ duties under the agreement.
	Hines may perform construction management services for the Company for both re-development activities and tenant construction. These fees are considered incremental to the construction effort and will be capitalized to the associated real estate project as incurred. Costs related to tenant construction will be depreciated over the estimated useful life. Costs related to redevelopment activities will be depreciated over the estimated useful life of the associated project. Leasing activities will generally be performed by Hines on the Company’s behalf. Leasing fees will be capitalized and amortized over the life of the related lease.
Fair Value of Financial Instruments	Financial Instruments Measured on a Nonrecurring Basis
	Certain long-lived assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments (i.e., impairments) in certain circumstances.  The fair value methodologies used to measure long-lived assets are described in Note 2 ─ Summary of Significant Accounting Policies ─ Investment Property and Lease Intangibles.  The inputs associated with the valuation of long-lived assets are generally included in Level 3 of the fair value hierarchy.  There were no events during the years ended December 31, 2014, 2013 and 2012 which indicated that fair value adjustments of our long-lived assets were necessary.
	Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities the Company has the ability to access. Fair values determined by Level 2 inputs utilize inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets and inputs other than quoted prices observable for the asset or liability, such as interest rates and yield curves observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. In instances in which the inputs used to measure fair value may fall into different levels of the fair value hierarchy, the level in the fair value hierarchy within which the fair value measurement in its entirety has been determined is based on the lowest level input significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
	Financial Instruments Measured on a Recurring Basis
	As described in Note 7 – Derivative Instruments, the Company entered into several interest rate contracts as economic hedges against the variability of future interest rates on its variable interest rate borrowings. The valuation of these derivative instruments is determined based on assumptions that management believes market participants would use in pricing, using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate contracts have been determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.
	Although the Company has determined the majority of the inputs used to value its interest rate contracts fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties, Eurohypo, PB Capital Corporation, Landesbank Baden-Württemberg, Commonwealth Bank of Australia, Bank of Western Australia, Deutsche Pfandbriefbank AG, Crédit Agricole, SMBC Capital Markets, Inc, and Australia and New Zealand Banking Group Limited. In adjusting the fair values of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds and guarantees. However, as of December 31, 2014 and 2013, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuations of its derivatives. As a result, the Company has determined its derivative valuations are classified in Level 2 of the fair value hierarchy.
	Additionally, as described in Note 7 – Derivative Instruments, the Company has entered into several foreign currency forward contracts as economic hedges against the variability of foreign exchange rates on future international investments. The valuation of these forward contracts is determined based on assumptions that management believes market participants would use in pricing, using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including currency exchange rate curves and implied volatilities. The Company has determined its foreign currency forward contracts valuations are classified in Level 2 of the fair value hierarchy, as they are based on observable inputs but are not traded in active markets.

Organization_Tables

Organization (Tables)	12 Months Ended
	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Variable Interest Entities	The table below presents the activity of the Company's unconsolidated entities as of and for the periods presented (in thousands):
			Years Ended December 31,
	Investment in Unconsolidated Affiliates		2014		2013			2012
	Beginning balance		3,573		3,573			—
	Contributions		—		—			3,573
	Distributions		(700	)	—			—
	Ending balance		2,873		3,573			3,573
	The table below summarizes the Company’s maximum loss exposure related to its unconsolidated VIEs as of December 31, 2014 and December 31, 2013, which is equal to the carrying value of its investment in the unconsolidated VIEs included in the balance sheet line item “Investment in unconsolidated entities” and the Company’s outstanding loan receivable balance held by the VIEs which is included in the balance sheet line item “Real estate loans receivable” in the condensed consolidated balance sheets as of December 31, 2014 and December 31, 2013 (in thousands).
	Period		Investment in Unconsolidated VIEs (1)			Maximum Risk of Loss (2)
	December 31, 2014		$	2,873		$	18,159
	December 31, 2013		$	3,573		$	7,246
	-1	Represents the Company’s contributions, net of distributions, made to its VIEs.
	-2	Maximum Risk of Loss is equal to the amount outstanding under the loan plus the Company’s contributions made to the VIEs as of the date indicated. See Note 5 — Real Estate Loans Receivable for additional information regarding the loan.
	A summary of our consolidated VIEs is as follows (in thousands):
			December 31, 2014			December 31, 2013
	Maximum risk of loss (1)		$	47,986		$	25,278
	Assets held by VIEs		$	188,264		$	126,528
	Assets held as collateral for debt		$	188,264		$	126,528
	Liabilities held by VIEs		$	131,691		$	94,675
	-1	Represents the Company's contributions, net of distributions, made to the consolidated VIEs.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Schedule of Other Assets	Other assets included the following (in thousands):
			December 31, 2014		December 31, 2013
	Deposits on investment property (1)		$	15,000	$	—
	Prepaid expenses		2,021		2,259
	Deferred tax assets		8,127		7,340
	Other		791		680
	Other assets		$	25,939	$	10,279
	-1	As of December 31, 2014, this consisted of a deposit that had been paid related to the acquisition of The Summit. See Note 16 — Subsequent Events for additional information regarding the acquisition of The Summit.

Investment_Property_Tables

Investment Property (Tables)	12 Months Ended
	Dec. 31, 2014
Real Estate [Abstract]
Schedule of Investment Property	Investment property consisted of the following amounts as of December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014				December 31, 2013
	Buildings and improvements (1)	$	2,501,176			$	2,371,242
	Less: accumulated depreciation	(138,821		)		(94,414		)
	Buildings and improvements, net	2,362,355				2,276,828
	Land	602,344				523,022
	Investment property, net	$	2,964,699			$	2,799,850
	-1	Included in buildings and improvements is approximately $24.3 million and $64.0 million of construction-in-progress related to the Company’s multi-family developments as of December 31, 2014 and December 31, 2013, respectively. Construction of the property in Houston, Texas was completed in July 2014, and the property no longer has any assets classified as construction-in-progress as of December 31, 2014. As of December 31, 2014, the remaining amounts included in construction-in-progress are related to the Company’s multi-family development in Miami, Florida.
Schedule of Lease Intangibles	As of December 31, 2014, the cost basis and accumulated amortization related to lease intangibles was as follows (in thousands):
		Lease Intangibles
						Out-of-Market			Out-of-Market
		In-Place Leases				Lease Assets			Lease Liabilities
	Cost	$	890,495			$	110,649		$	(104,528	)
	Less: accumulated amortization	(221,316		)		(36,363		)	20,143
	Net	$	669,179			$	74,286		$	(84,385	)
	As of December 31, 2013, the cost basis and accumulated amortization related to lease intangibles was as follows (in thousands):
		Lease Intangibles
						Out-of-Market			Out-of-Market
		In-Place Leases				Lease Assets			Lease Liabilities
	Cost	$	772,948			$	116,818		$	(80,844	)
	Less: accumulated amortization	(166,109		)		(27,933		)	12,489
	Net	$	606,839			$	88,885		$	(68,355	)
	The weighted average amortization period for the intangible assets and liabilities acquired in connection with the 2014, 2013, and 2012 acquisitions, as of the date of the acquisition, was as follows (in years):
			In-Place Leases		Above-Market Lease Assets		Below-Market Lease Liabilities
	2014 Acquisitions:
	The Rim		16.5		12.9		35.3
	25 Cabot Square (1)		11.7		0.5		3
	Simon Hegele Logistics		13.4		13.4		—
	818 Bourke		4.1		3.3		3.1
	2013 Acquisitions:
	Mercedes Benz Bank		5		5		—
	One Westferry Circus (1)		8.4		9.9		13.1
	465 Victoria		4.7		5.2		7.3
	Riverside Center		6.2		1		6.9
	New City (1)		4.8		4.3		3
	825 Ann		9.5		—		—
	The Campus at Playa Vista		6.7		8.6		7.1
	Perspective Défense		3.8		3.8		3.8
	The Markets at Town Center		9.4		0.5		7
	The Avenue		4.1		6.8		17.2
	2300 Main		5.6		—		—
	Fiege Mega Centre		10.2		—		—
	55 M Street		7.1		7.8		7.3
	2012 Acquisitions:
	Poland Logistics Portfolio		4.1		5.6		3.4
	144 Montague		9.6		—		—
	100 Brookes		5.6		5.6		—
	Minneapolis Retail Center		6.9		8.7		9.2
	550 Terry Francois		5.2		5.2		—
	(1)Excludes the effect of ground leases which significantly increase the weighted average useful life for these intangibles.
Schedule of Future Amortization Expense	Anticipated amortization of in-place leases and out-of-market leases, net, for each of the years ending December 31, 2015 through December 31, 2019 are as follows (in thousands):
		In-Place				Out-of-Market
		Leases				Leases, Net
	2015	$	106,023			$	4,750
	2016	95,411				5,158
	2017	72,530				3,779
	2018	52,479				293
	2019	41,750				(1,516		)
Schedule of Future Minimum Rental Income for Operating Leases	The Company has entered into non-cancelable lease agreements with tenants for space.  As of December 31, 2014, the approximate fixed future minimum rentals for each of the years ending December 31, 2015 through 2019 and thereafter were as follows (in thousands):
		Fixed Future Minimum Rentals
	2015	$	316,334
	2016	296,779
	2017	278,756
	2018	208,424
	2019	181,803
	Thereafter	1,106,912
	Total	$	2,389,008

Recent_Acquisitions_of_Real_Es1

Recent Acquisitions of Real Estate (Tables)	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Schedule of Amounts Recognized for Major Assets Acquired	The amounts recognized for major assets acquired as of the acquisition date were determined by allocating the purchase price of each property acquired in 2014, 2013 and 2012 as follows (in thousands):
	Property Name		Acquisition		Building and				Land (1)				In-place		Out-of-			Total (1)
			Date		Improvements (1)								Lease		Market Lease
													Intangibles (1)		Intangibles, Net (1)
	2014
	The Rim		2/13/14		$	90,990			$	65,890			$	41,360	$	(21,940	)	$	176,300
	25 Cabot Square		3/28/14		$	165,121			$	—			$	206,640	$	(16	)	$	371,745
	Simon Hegele Logistics		6/3/14		$	34,663			$	8,481			$	5,986	$	41		$	49,171
	818 Bourke		10/31/14		$	82,867			$	36,487			$	17,082	$	(792	)	$	135,644
	2013
	Mercedes Benz Bank		2/7/13		$	47,643			$	11,953			$	7,093	$	3,533		$	70,222
	One Westferry Circus		2/28/13		$	48,874			$	—			$	74,693	$	1,049		$	124,616
	465 Victoria		2/28/13		$	48,788			$	26,566			$	17,712	$	(2,233	)	$	90,833
	Riverside Center		3/27/13		$	125,014			$	45,888			$	30,360	$	(4,170	)	$	197,092
	New City		3/28/13		$	115,208			$	—			$	46,117	$	2,137		$	163,462
	825 Ann		4/30/13		$	83,802			$	20,669			$	23,725	$	—		$	128,196
	The Campus at Playa Vista		5/14/13		$	125,567			$	41,160			$	37,320	$	12,580		$	216,627
	Perspective Défense		6/21/13		$	109,704			$	29,039			$	22,038	$	5,060		$	165,841
	The Markets at Town Center		7/23/13		$	76,067			$	52,130			$	19,020	$	(12,210	)	$	135,007
	The Avenue		8/12/13		$	71,990			$	54,940			$	47,350	$	(11,280	)	$	163,000
	2300 Main		8/29/13		$	27,940			$	3,570			$	7,990	$	—		$	39,500
	Fiege Mega Centre		10/18/13		$	36,005			$	10,107			$	7,481	$	—		$	53,593
	55 M Street		12/9/13		$	85,277			$	24,810			$	34,730	$	(3,940	)	$	140,877
	2012
	Poland Logistics Portfolio (2)		03/29/12 and 10/10/12 (3)		$	97,627			$	25,893			$	33,062	$	644		$	157,226
	144 Montague (4)		4/16/12		$	49,424			$	13,803			$	28,083	$	—		$	91,310
	100 Brookes		7/13/12		$	41,404			$	8,600			$	12,859	$	4,737		$	67,600
	Minneapolis Retail Center (5)		8/1/12		$	78,711			$	30,792			$	34,176	$	(13,078	)	$	130,601
	550 Terry Francois		8/31/12		$	109,760			$	41,270			$	20,860	$	8,110		$	180,000
	-1	For acquisitions denominated in a foreign currency, amounts have been translated at a rate based on the rate in effect on the acquisition date.
	-2	The Poland Logistics Portfolio is comprised of five industrial parks located in Warsaw, Wroclaw and Upper Silesia, Poland.
	-3	The first four industrial parks in the Poland Logistics Portfolio were acquired on March 29, 2012 and the remaining fifth industrial park, Distribution Park Sosnowiec, was acquired on October 10, 2012.
	-4	In November 2014, the Company completed the sale of 144 Montague. See Note 3 — Investment Property for more information regarding this transaction.
	-5	The Minneapolis Retail Center includes the acquisition of a parking garage on December 26, 2012.
Schedule of Weighted-Average Amortization Periods for Intangible Assets and Liabilities Acquired	As of December 31, 2014, the cost basis and accumulated amortization related to lease intangibles was as follows (in thousands):
		Lease Intangibles
						Out-of-Market				Out-of-Market
		In-Place Leases				Lease Assets				Lease Liabilities
	Cost	$	890,495			$	110,649			$	(104,528	)
	Less: accumulated amortization	(221,316		)		(36,363		)		20,143
	Net	$	669,179			$	74,286			$	(84,385	)
	As of December 31, 2013, the cost basis and accumulated amortization related to lease intangibles was as follows (in thousands):
		Lease Intangibles
						Out-of-Market				Out-of-Market
		In-Place Leases				Lease Assets				Lease Liabilities
	Cost	$	772,948			$	116,818			$	(80,844	)
	Less: accumulated amortization	(166,109		)		(27,933		)		12,489
	Net	$	606,839			$	88,885			$	(68,355	)
	The weighted average amortization period for the intangible assets and liabilities acquired in connection with the 2014, 2013, and 2012 acquisitions, as of the date of the acquisition, was as follows (in years):
			In-Place Leases		Above-Market Lease Assets		Below-Market Lease Liabilities
	2014 Acquisitions:
	The Rim		16.5		12.9		35.3
	25 Cabot Square (1)		11.7		0.5		3
	Simon Hegele Logistics		13.4		13.4		—
	818 Bourke		4.1		3.3		3.1
	2013 Acquisitions:
	Mercedes Benz Bank		5		5		—
	One Westferry Circus (1)		8.4		9.9		13.1
	465 Victoria		4.7		5.2		7.3
	Riverside Center		6.2		1		6.9
	New City (1)		4.8		4.3		3
	825 Ann		9.5		—		—
	The Campus at Playa Vista		6.7		8.6		7.1
	Perspective Défense		3.8		3.8		3.8
	The Markets at Town Center		9.4		0.5		7
	The Avenue		4.1		6.8		17.2
	2300 Main		5.6		—		—
	Fiege Mega Centre		10.2		—		—
	55 M Street		7.1		7.8		7.3
	2012 Acquisitions:
	Poland Logistics Portfolio		4.1		5.6		3.4
	144 Montague		9.6		—		—
	100 Brookes		5.6		5.6		—
	Minneapolis Retail Center		6.9		8.7		9.2
	550 Terry Francois		5.2		5.2		—
	(1)Excludes the effect of ground leases which significantly increase the weighted average useful life for these intangibles.
Schedule of Revenue and Net Income (Loss), Acquisitions	The table below includes the amounts of revenue and net income (loss) of the acquisitions completed during the year ended December 31, 2014, which are included in the Company’s consolidated results of operations for the year ended December 31, 2014 (in thousands):
			For the Year Ended
	2014 Acquisitions		31-Dec-14
	The Rim	Revenue	$	17,240
		Net income (loss)	$	369
	25 Cabot Square	Revenue	$	26,666
		Net income (loss)	$	(16,639	)
	Simon Hegele Logistics	Revenue	$	2,110
		Net income (loss)	$	(3,974	)
	818 Bourke	Revenue	$	1,980
		Net income (loss)	$	(7,700	)
	The table below includes the amounts of revenue and net income (loss) of the acquisitions completed during the year ended December 31, 2012, which are included in the Company’s consolidated results of operations for the year ended December 31, 2012 (in thousands):
			For the Year Ended
	2012 Acquisitions		31-Dec-12
	Poland Logistics Portfolio	Revenue	$	11,595
		Net income (loss)	$	(6,071	)
	144 Montague	Revenue	$	7,153
		Net income (loss)	$	(4,903	)
	100 Brookes	Revenue	$	3,291
		Net income (loss)	$	(4,680	)
	Minneapolis Retail Center	Revenue	$	7,536
		Net income (loss)	$	(1,317	)
	550 Terry Francois	Revenue	$	6,362
		Net income (loss)	$	1,989
	The table below includes the amounts of revenue and net income (loss) of the acquisitions completed during the year ended December 31, 2013, which are included in the Company’s consolidated results of operations for the year ended December 31, 2013 (in thousands):
			For the Year Ended
	2013 Acquisitions		31-Dec-13
	Mercedes Benz Bank	Revenue	$	5,752
		Net income (loss)	$	(4,781	)
	One Westferry Circus	Revenue	$	11,938
		Net income (loss)	$	(6,717	)
	465 Victoria	Revenue	$	7,403
		Net income (loss)	$	(5,576	)
	Riverside Center	Revenue	$	15,854
		Net income (loss)	$	2,468
	New City	Revenue	$	11,509
		Net income (loss)	$	(4,167	)
	825 Ann	Revenue	$	7,724
		Net income (loss)	$	(7,318	)
	The Campus at Playa Vista	Revenue	$	12,815
		Net income (loss)	$	1,244
	Perspective Défense	Revenue	$	8,325
		Net income (loss)	$	(12,035	)
	The Markets at Town Center	Revenue	$	5,654
		Net income (loss)	$	2,482
	The Avenue at Murfreesboro	Revenue	$	5,423
		Net income (loss)	$	(191	)
	2300 Main	Revenue	$	1,428
		Net income (loss)	$	(146	)
	Fiege Mega Centre	Revenue	$	877
		Net income (loss)	$	(3,353	)
	55 M Street	Revenue	$	799
		Net income (loss)	$	(2,501	)
Business Acquisitions, Pro Forma Information	The following unaudited consolidated information is presented to give effect to current year acquisitions through December 31, 2014 as if the acquisitions occurred on January 1, 2013. This information excludes activity that is non-recurring and not representative of our future activity, primarily acquisition fees and expenses of $47.5 million and $82.1 million for the years ended December 31, 2014 and 2013, respectively. The information below is not necessarily indicative of what the actual results of operations would have been had we completed these transactions on January 1, 2013, nor does it purport to represent our future operations (amounts in thousands, except per share amounts):
		For the Years Ended
		December 31,
		Pro Forma 2014				Pro Forma 2013
	Revenues	$	477,692			$	392,489
	Net income (loss)	$	56,503			$	(20,717	)
	Basic and diluted income (loss) per common share	$	0.21			$	(0.11	)
	The following unaudited consolidated information is presented to give effect to 2012 acquisitions through December 31, 2012 as if the acquisitions occurred on January 1, 2011. This information excludes activity that is non-recurring and not representative of our future activity, primarily acquisition fees and expenses of $28.7 million and $20.0 million for the years ended December 31, 2012 and 2011, respectively. The information below is not necessarily indicative of what the actual results of operations would have been had we completed these transactions on January 1, 2011, nor does it purport to represent our future operations (amounts in thousands, except per share amounts):
		For the Years Ended
		December 31,
		Pro Forma 2012				Pro Forma 2011
	Revenues	$	222,914			$	167,137
	Net income (loss)	$	(3,157	)		$	(47,170	)
	Basic and diluted income (loss) per common share	$	(0.03	)		$	(0.39	)
	The following unaudited consolidated information is presented to give effect to 2013 acquisitions through December 31, 2013 as if the acquisitions occurred on January 1, 2012. This information excludes activity that is non-recurring and not representative of our future activity, primarily acquisition fees and expenses of $82.1 million and $28.7 million for the years ended December 31, 2013 and 2012, respectively. The information below is not necessarily indicative of what the actual results of operations would have been had we completed these transactions on January 1, 2012, nor does it purport to represent our future operations (amounts in thousands, except per share amounts):
		For the Years Ended
		December 31,
		Pro Forma 2013				Pro Forma 2012
	Revenues	$	388,133			$	348,012
	Net income (loss)	$	(21,472	)		$	(31,255	)
	Basic and diluted income (loss) per common share	$	(0.12	)		$	(0.20	)

Real_Estate_Loans_Receivable_T

Real Estate Loans Receivable (Tables)	12 Months Ended
	Dec. 31, 2014
Real Estate Loans Receivable [Abstract]
Schedule of Real Estate Loans Receivable	Real estate loans receivable included the following at December 31, 2014 and 2013 (in thousands):
	Property	Original Funding Date	Maturity Date	Interest Rate	Total Loan		Balance as of			Balance as of
					Commitment		31-Dec-14			31-Dec-13
	Flagship Capital JV
	Norchester Village	3/1/12	5/5/15	N/A	$	4,961	$	—		$	4,289
	Bay Park Apartments	7/30/12	7/30/14	N/A	3,232		—			3,212
	Houston Retail Portfolio	8/2/12	8/2/15	7.60%	11,804		11,457			11,363
	Motor Circle	12/28/12	12/28/15	8.00%	3,175		2,423			2,412
	Deer Creek	2/7/13	2/7/15	N/A	5,450		—			5,287
	Casa Blanca	2/7/13	2/7/15	N/A	5,742		—			5,350
	Falls of Kirkwood	10/18/13	10/12/15	8.00%	6,300		6,222			3,641
	Falls of Town Park Apartments	12/30/13	12/30/15	7.75%	5,327		5,227			4,364
	Precinct Villages	3/18/14	3/17/16	8.50%	2,595		1,811			—
	Manor Palms	6/26/14	12/25/15	7.00%	4,109		3,979			—
	Randall’s	7/28/14	7/28/17	6.25%	10,939		8,110			—
	Finesilver	7/31/14	7/31/16	6.45%	7,233		5,165			—
	Dymaxion Apartments	12/15/14	12/15/16	7.60%	8,500		7,684			—
	Marbach Park Apartments	12/15/14	12/15/16	7.60%	9,500		7,676			—
				7.38%	$	88,867	$	59,754		$	39,918
	Less: Origination fees						(640		)	(354		)
	Total Flagship Capital JV						$	59,114		$	39,564
	Other Loans Receivable
	@1377	6/29/12	7/1/16	10.00%	$	3,962	$	3,962		$	3,673
	The Rim	9/8/14	9/7/15	8.50%	$	29,800	$	11,324		$	—
	Total Real Estate Loans Receivable						$	74,400		$	43,237

Debt_Financing_Tables

Debt Financing (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Debt	The following table describes the Company’s debt outstanding at December 31, 2014 and 2013 (in thousands, except percentages):
	Description		Origination or Assumption Date	Maturity Date		Interest Rate Description	Interest Rate as of			Principal Outstanding at				Principal Outstanding at
							31-Dec-14			31-Dec-14				31-Dec-13
	Secured Mortgage Debt
	Brindleyplace Project		7/1/10	7/7/15		75% fixed via swap / 25% variable	3.46	%	(1)	$	188,034			$	199,608
	Hock Plaza		9/8/10	12/6/15		Fixed	5.58	%		75,657				76,839
	Southpark		10/19/10	12/6/16		Fixed	5.67	%		18,000				18,000
	Fifty South Sixth		11/4/10	11/4/15		Fixed via swap	3.62	%		95,000				95,000
	Stonecutter Court (2)		3/11/11	3/11/16		Fixed via swap	N/A			—				88,296
	Gogolevsky 11		8/25/11	4/7/21		Variable	6.48	%		35,100				36,500
	Campus at Marlborough		10/28/11	12/1/14		Fixed	5.21	%		—				54,596
	Flagship Capital JV  (3)		7/2/14	7/2/19		Variable, subject to floor of 4.25%	4.25	%		25,162				11,047
	144 Montague (4)		4/16/12	4/16/17		Variable, subject to interest rate cap	N/A			—				49,937
	100 Brookes		7/13/12	7/31/17		Variable, subject to interest rate cap	5.49	%		35,254				38,354
	Poland Logistics Portfolio (5)		8/2/12	6/30/17		Variable, subject to interest rate cap	2.88	%		76,797				88,812
	Minneapolis Retail Center		8/2/12	8/10/19		Fixed	3.5	%		65,500				65,500
	825 Ann		11/16/12	4/30/16		Variable	4.79	%		66,091				71,901
	Mercedes Benz Bank		2/7/13	12/31/19		Variable, subject to interest rate cap	1.58	%		41,346				47,304
	465 Victoria		2/28/13	2/28/16		Variable, subject to interest rate cap	4.85	%		43,396				47,211
	New City		3/28/13	3/28/18		Variable, subject to interest rate cap	2.88	%		95,934				111,532
	One Westferry Circus		5/9/13	5/5/20		Fixed	3.3	%		74,554				79,142
	The Campus at Playa Vista		5/14/13	6/1/16		Variable	1.66	%		115,000				115,000
	Perspective Defense		6/21/13	7/25/19		Variable, subject to interest rate cap	2.59	%		85,085				96,362
	Fiege Mega Centre		10/18/13	10/18/18		Variable, subject to interest rate cap	1.78	%		28,373				32,542
	55 M Street		12/9/13	12/9/17		Variable	1.62	%		72,000				72,000
	25 Cabot Square		3/26/14	3/26/20		Fixed	3.5	%		192,209				—
	Simon Hegele Logistics		4/28/14	6/15/19		Fixed	1.9	%		26,106				—
	818 Bourke		10/31/14	10/31/19		Variable, subject to interest rate cap	3.49	%		74,627				—
	Other Notes Payable
	JPMorgan Chase Revolving		4/13/12	5/22/16		Variable	2.14	%	(1)	122,894				204,467
	Credit Facility
	JPMorgan Chase Revolving Credit Facility - Term Loan		5/22/13	5/22/17		Variable	1.95	%		378,000				200,000
	WaterWall Place Construction Loan		6/29/12	6/29/16		Variable, subject to interest rate cap	2.41	%	(1)	44,092				30,107
	Aviva Coral Gables JV Construction Loan (formerly known as the Ponce & Bird JV)		5/10/13	5/10/17		Variable	2.41	%	(1)	38,431				6,557
	Total Principal Outstanding									$	2,112,642			$	1,936,614
	Unamortized Discount									(283		)		(713		)
	Notes Payable									$	2,112,359			$	1,935,901
	Notes Payable to Affiliates
	WaterWall Place Construction Loan		12/15/11	12/14/14		Variable	N/A			—				20,341
	Aviva Coral Gables Construction Loan (formerly known as the Ponce & Bird JV)		7/13/12	7/13/15		Variable	2.15	%		17,601				17,220
	Total Notes Payable to Affiliates									$	17,601			$	37,561
										$	2,129,960			$	1,973,462
	-1	Represents the weighted average interest rate for the year ended December 31, 2014.
	-2	In December 2014, the Company sold Stonecutter Court. In connection with this sale of Stonecutter Court, the Company retired the outstanding principal balance of the secured mortgage loan in December 2014.
	-3	In July 2014, the Flagship JV entered into a new credit agreement with a maximum commitment of $50.0 million and retired the previous credit agreement.
	-4	In November 2014, the Company sold 144 Montague. In connection with this sale of 144 Montague, the Company retired the outstanding principal balance of the secured mortgage loan in November 2014.
	-5	See the discussion below under the heading “Financial Covenants” for additional information regarding the Company’s noncompliance with a debt covenant on its loan secured by the Poland Logistics Portfolio that occurred during the year.
Schedule of Maturities of Long Term Debt	The Company is required to make the following principal payments on its outstanding notes payable for each of the years ending December 31, 2015 through December 31, 2019 and for the period thereafter. Amounts are in thousands:
		Payments due by Year
		2015			2016			2017				2018				2019		Thereafter
	Principal payments	$	384,770		$	418,256		$	604,868			$	120,664			$	308,222	$	293,463

Derivative_Instruments_Tables

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedges, Assets [Abstract]
Schedule of Derivative Instruments	The table below provides additional information regarding the Company’s interest rate contracts (in thousands, except percentages).
	Interest Rate Contracts
	Type		Effective Date		Expiration Date		Notional Amount (1)			Interest Rate Received		Pay Rate /Strike Rate
	Interest rate swaps		July 7, 2010		July 7, 2015		$	141,026		LIBOR		2.29	%
	Interest rate swap		November 4, 2010		November 4, 2015		$	95,000		LIBOR		1.37	%
	Interest rate cap		August 2, 2012		June 30, 2017		$	57,890		EURIBOR		2	%
	Interest rate cap		August 13, 2012		August 13, 2015		$	17,628		BBSY		4	%
	Interest rate cap		October 9, 2012		June 30, 2017		$	12,048		EURIBOR		2	%
	Interest rate cap		January 7, 2013		June 29, 2016		$	45,500		LIBOR		1.25	%
	Interest rate cap		March 11, 2013		March 31, 2018		$	41,346		EURIBOR		1.5	%
	Interest rate cap		March 20, 2013		February 29, 2016		$	22,511		BBSW		4.33	%
	Interest rate cap		July 30, 2013		April 30, 2016		$	49,570		BBSW		4.5	%
	Interest rate cap		11-Apr-13		March 16, 2018		$	67,413		EURIBOR		2.5	%
			6-May-13
	Interest rate cap		July 25, 2013		July 25, 2019		$	85,084		EURIBOR		1.7	%	(2)
	Interest rate cap		October 18, 2013		October 18, 2018		$	28,372		EURIBOR		2	%
	Interest rate cap		September 5, 2014		December 5, 2016		$	43,964		LIBOR		1	%	(3)
	Interest rate cap		November 27, 2014		October 27, 2017		$	37,315		BBSY		4	%
	-1	For notional amounts denominated in a foreign currency, amounts have been translated at a rate based on the rate in effect on December 31, 2014.
	-2	Beginning in July 2016, the strike rate of this interest rate cap will increase to 2.00% for the remaining term of the interest rate cap.
	-3	Beginning in January 2015, the strike rate of this interest rate cap will increase to 2.00%, and beginning in January 2016, the strike rate of this interest rate cap will increase to 3.25% for the remaining term.
	The table below provides additional information regarding the Company’s foreign currency forward contracts that are outstanding as of December 31, 2014 (in thousands).
	Foreign Currency Forward Contracts
	Effective Date		Expiration Date		Notional Amount				Buy/Sell	Traded Currency Rate
	June 26, 2014		June 26, 2015		£	105,800			USD/GBP	$	1.69
	September 10, 2014		June 26, 2015		£	105,800			GBP/USD	$	1.62
Schedule of Derivatives Not Designated As Hedging Instruments	The table below presents the fair value of the Company’s derivative instruments included in “Assets—Derivative Instruments” and “Liabilities—Derivative Instruments” on the Company’s consolidated balance sheets, as of December 31, 2014 and December 31, 2013 (in thousands):
			Derivative Assets							Derivative Liabilities
			December 31,				December 31,			December 31,				December 31,
			2014				2013			2014				2013
	Derivatives not designated as hedging instruments:
	Interest rate swaps		$	—			$	—		$	(2,684	)		$	(9,329	)
	Interest rate caps		345				4,428			—				—
	Foreign currency forward contracts		14,316				866			(7,164		)		(488		)
	Total derivatives		$	14,661			$	5,294		$	(9,848	)		$	(9,817	)
	The table below presents the effects of the changes in fair value of our derivative instruments in the Company’s consolidated statements of operations and comprehensive income (loss) for the year ended December 31, 2014, 2013 and 2012 (in thousands):
			Gain (Loss) on Derivative Instruments
			Year Ended
			December 31,				December 31,			December 31,
			2014				2013			2012
	Derivatives not designated as hedging instruments:
	Interest rate swaps		$	4,122			$	5,910		$	(1,479	)
	Interest rate caps		(4,131		)		(828		)	(1,184		)
	Foreign currency forward contracts		7,331				4,827			4,061
	Total gain (loss) on derivatives		$	7,322			$	9,909		$	1,398

Distributions_Tables

Distributions (Tables)	12 Months Ended
	Dec. 31, 2014
Distributions [Abstract]
Schedule of Distributions Declared	The table below outlines the Company’s total distributions declared to stockholders and noncontrolling interests (Hines Global REIT Associates Limited Partnership (“HALP”), Moorfield and Flagship Capital GP) for the years ended December 31, 2014, 2013 and 2012, including the breakout between the distributions declared in cash and those reinvested pursuant to the Company’s distribution reinvestment plan (in thousands). The Company declares distributions to the Company’s stockholders as of daily record dates and aggregates and pays such distributions monthly.
		Stockholders						Noncontrolling Interests
	Distributions for the Years Ended	Cash Distributions		Distributions Reinvested		Total Declared		Total Declared
	December 31, 2014	$	79,555	$	91,530	$	171,085	$	4,668
	December 31, 2013	$	56,702	$	63,062	$	119,764	$	3,331
	December 31, 2012	$	35,581	$	38,394	$	73,975	$	3,159

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The table below outlines fees and expense reimbursements incurred that are payable by the Company to Hines and its affiliates for the years ended December 31, 2014, 2013, and 2012 and amounts unpaid as of December 31, 2014 and 2013 (in thousands):
		Incurred During the Years Ended December 31,						Unpaid as of December 31,
	Type and Recipient	2014		2013		2012		2014		2013
	Selling Commissions- Dealer Manager	$	27,021	$	56,259	$	40,560	$	—	$	658
	Dealer Manager Fee- Dealer Manager	$	9,334	$	19,321	$	13,992	—		(5		)
	Issuer Costs- the Advisor	$	1,975	$	7,137	$	5,710	—		482
	Acquisition Fee- the Advisor and affiliates of Hines	$	18,188	$	40,136	$	16,064	1,492		—
	Asset Management Fee- the Advisor and affiliates of Hines	$	34,881	$	20,354	$	5,942	8,402		7,241
	Disposition Fee- the Advisor	$	2,543	$	—	$	—	—		—
	Other (1)	$	6,713	$	5,216	$	2,894	1,657		1,166
	Property Management Fee- Hines	$	6,680	$	5,599	$	3,000	159		(144		)
	Development/ Construction Management Fee- Hines	$	2,556	$	4,010	$	119	35		83
	Leasing Fee - Hines	$	2,138	$	3,371	$	228	1,363		1,735
	Redevelopment Construction Management- Hines	$	9	$	—	$	107	—		—
	Expense Reimbursement- Hines (with respect to management and operations of the Company’s properties)	$	10,777	$	7,074	$	4,562	998		5,203
	Due to Affiliates							$	14,106	$	16,419
	-1	Includes amounts the Advisor paid on behalf of the Company such as general and administrative expenses and acquisition-related expenses.  These amounts are generally reimbursed to the Advisor during the month following the period in which they are incurred.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Schedule of Derivatives Measured on Recurring Basis	The following table sets forth the Company’s derivatives which are measured at fair value on a recurring basis, by level within the fair value hierarchy as of December 31, 2014 and December 31, 2013 (all amounts are in thousands):
					Basis of Fair Value Measurements
	Period	Fair Value of Assets (Liabilities)			Quoted Prices In Active Markets for Identical Items (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)
	December 31, 2014
	Interest rate swaps	$	(2,684	)	$	—	$	(2,684	)	$	—
	Interest rate caps	$	345		$	—	$	345		$	—
	Foreign currency forwards - Assets	$	14,316		$	—	$	14,316		$	—
	Foreign currency forwards - Liabilities	$	(7,164	)	$	—	$	(7,164	)	$	—
	December 31, 2013
	Interest rate swaps	$	(9,329	)	$	—	$	(9,329	)	$	—
	Interest rate caps	$	4,428		$	—	$	4,428		$	—
	Foreign currency forwards - Assets	$	866		$	—	$	866		$	—
	Foreign currency forwards - Liabilities	$	(488	)	$	—	$	(488	)	$	—

Reportable_Segments_Tables

Reportable Segments (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Schedule of Segment Reporting Information	For the years ended December 31, 2014, 2013 and 2012, the Company’s property revenues in excess of expenses by segment was as follows:
			Years Ended December 31,
			2014				2013				2012
	Property revenues in excess of expenses (1)
		Domestic office investments	$	91,932			$	72,547			$	44,088
		Domestic other investments	67,297				39,413				22,492
		International office investments	114,586				73,226				27,803
		International other investments	45,348				35,583				31,818
	Total property revenues in excess of expenses		$	319,163			$	220,769			$	126,201
	-1	Revenues less property operating expenses, real property taxes and property management fees.
	For the years ended December 31, 2014 and 2013, the Company’s total assets by segment was as follows:
			Years Ended December 31,
			2014				2013
	Total Assets
		Domestic office investments	$	1,227,066			$	1,273,779
		Domestic other investments	1,041,004				789,204
		International office investments	1,237,989				1,176,394
		International other investments	557,003				515,788
		Corporate-level accounts	63,532				48,054
	Total Assets		$	4,126,594			$	3,803,219
	The tables below provide additional information related to each of the Company’s segments, geographic location and a reconciliation to the Company’s net loss, as applicable. “Corporate-Level Accounts” includes amounts incurred by the corporate-level entities which are not allocated to any of the reportable segments (all amounts are in thousands, except for percentages):
			Years Ended December 31,
			2014				2013				2012
	Total Revenue
		Domestic office investments	$	145,941			$	114,480			$	70,943
		Domestic other investments	104,753				62,407				36,712
		International office investments	108,839				68,274				32,123
		International other investments	96,731				77,701				47,462
	Total Revenue		$	456,264			$	322,862			$	187,240
Schedule of Revenue and Assets, by Geographical Areas	For the years ended December 31, 2014 and 2013, the Company’s total assets were attributable to the following countries:
		Years Ended December 31,
		2014			2013
	United States	56	%		55	%
	United Kingdom	18	%		15	%
	Australia	9	%		9	%
	Poland	7	%		9	%
	Russia	2	%		4	%
	France	4	%		5	%
	Germany	4	%		3	%
	For the years ended December 31, 2014, 2013 and 2012, the Company’s total revenue was attributable to the following countries:
		Years Ended December 31,
		2014			2013			2012
	United States	55	%		55	%		57	%
	United Kingdom	19	%		15	%		20	%
	Australia	8	%		10	%		6	%
	Poland	7	%		9	%		6	%
	Russia	5	%		6	%		11	%
	France	3	%		3	%		—	%
	Germany	3	%		2	%		—	%
Reconciliation of Property Revenues in Excess of Expenses From Segments to Consolidated	For the years ended December 31, 2014, 2013 and 2012 the Company’s reconciliation to the Company’s net loss is as follows:
		Years Ended December 31,
		2014				2013				2012
	Reconciliation to net income (loss)
	Total property revenues in excess of expenses	$	319,163			$	220,769			$	126,201
	Depreciation and amortization	(193,870		)		(140,187		)		(84,747		)
	Acquisition related expenses	(29,278		)		(42,747		)		(12,633		)
	Asset management and acquisition fees	(53,069		)		(60,490		)		(22,006		)
	General and administrative expenses	(6,782		)		(5,344		)		(3,590		)
	Gain (loss) on derivatives	7,322				9,909				1,398
	Gain (loss) on sale of real estate investments	64,003				—				—
	Foreign currency gains (losses)	(13,074		)		(6,458		)		672
	Interest expense	(78,273		)		(60,968		)		(37,915		)
	Interest income	506				454				227
	Benefit (provision) for income taxes	(5,806		)		(701		)		(1,147		)
	Net income (loss)	$	10,842			$	(85,763	)		$	(33,540	)

Supplemental_Cash_Flow_Disclos1

Supplemental Cash Flow Disclosures (Tables)	12 Months Ended
	Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]
Schedule of Supplemental Cash Flow Disclosures	Supplemental cash flow disclosures for the years ended December 31, 2014, 2013, and 2012 (in thousands):
		2014		2013		2012
	Supplemental Disclosure of Cash Flow Information
	Cash paid for interest	$	66,592	$	53,942	$	32,784
	Cash paid for income taxes	$	4,161	$	4,742	$	4,461
	Supplemental Schedule of Non-Cash Activities
	Distributions declared and unpaid	$	17,558	$	14,143	$	8,777
	Other receivables	$	—	$	5,441	$	4,889
	Distributions reinvested	$	90,198	$	60,585	$	36,981
	Shares tendered for redemption	$	5,505	$	2,287	$	927
	Non-cash net liabilities acquired	$	2,737	$	12,867	$	4,745
	In-kind contribution from noncontrolling interest	$	—	$	—	$	3,000
	Accrued additions to investment property	$	2,373	$	8,538	$	5,524

Quarterly_Financial_Data_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Data [Abstract]
Schedule of Unaudited Quarterly Financial Data	The following table presents selected unaudited quarterly financial data for each quarter during the years ended December 31, 2014 and 2013 (in thousands except per share amounts):
		Quarters Ended
		March 31, 2014			June 30, 2014			September 30, 2014			December 31, 2014
	Revenues	$	105,123		$	117,840		$	117,705		$	115,596
	Gain (loss) on sale of real estate investments	$	—		$	—		$	—		$	64,003
	Net (income) loss attributable to noncontrolling interests	$	(947	)	$	(1,097	)	$	(964	)	$	(2,756	)
	Net income (loss) attributable to common stockholders	$	(36,389	)	$	(10,580	)	$	3,214		$	48,833
	Income (loss) per common share, basic and diluted	$	(0.15	)	$	(0.04	)	$	0.01		$	0.18
		Quarters Ended
		March 31, 2013			June 30, 2013			September 30, 2013			December 31, 2013
	Revenues	$	60,032		$	75,824		$	90,081		$	96,925
	Net (income) loss attributable to noncontrolling interests	$	(521	)	$	(437	)	$	(616	)	$	(1,599	)
	Net income (loss) attributable to common stockholders	$	(32,492	)	$	(32,556	)	$	(13,442	)	$	(10,446	)
	Income (loss) per common share, basic and diluted	$	(0.20	)	$	(0.19	)	$	(0.07	)	$	(0.05	)

Organization_Public_Offering_D

Organization (Public Offering) (Details) (USD $)	12 Months Ended			0 Months Ended		23 Months Ended	9 Months Ended	65 Months Ended
Share data in Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 01, 2013	Aug. 05, 2009	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014
Public Offering [Line Items]
Proceeds from issuance public offering	$378,804,000	$772,693,000	$556,657,000
First Offering [Member]
Public Offering [Line Items]
Commencement Date of Public Offering					5-Aug-09
Termination Date Public Offering				1-Feb-13
Second Offering [Member]
Public Offering [Line Items]
Commencement Date of Public Offering	4-Feb-13
Termination Date Public Offering	11-Apr-14
Maximum proceeds from public offering						3,500,000,000
Dividend Reinvestment Plan [Member]
Public Offering [Line Items]
Commencement Date of Public Offering	24-Apr-14
Maximum proceeds from public offering							500,000,000
Public Offerings [Member]
Public Offering [Line Items]
Proceeds from issuance public offering								$2,800,000,000
Issuance of common shares, shares								278,400

Organization_Real_Estate_Inves

Organization (Real Estate Investments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
	real_estate_loan
Real Estate Properties [Line Items]
Number of real estate investments	40
Real estate loans receivable, net	$74,400,000	$43,237,000
Aviva Coral Gables JV [Member]
Real Estate Properties [Line Items]
Parent ownership percentage	83.00%
Expected total construction cost	66,000,000
Number of units in real estate property	276
Noncontrolling interest, ownership percentage	17.00%
Flagship Capital Joint Venture [Member]
Real Estate Properties [Line Items]
Parent ownership percentage	97.00%
Mortgage loans on real estate, number of loans	10
Real estate loans receivable, net	59,114,000	39,564,000
Total loan commitment	88,867,000
The Rim [Member]
Real Estate Properties [Line Items]
Real estate loans receivable, net	11,324,000	0
Total loan commitment	$29,800,000
Number of retail parcels	4
Area of real estate property (sqft)	656,371
Domestic office investments [Member]
Real Estate Properties [Line Items]
Number of real estate investments	11
Domestic other investments [Member]
Real Estate Properties [Line Items]
Number of real estate investments	10
International office investments [Member]
Real Estate Properties [Line Items]
Number of real estate investments	10
International other investments [Member]
Real Estate Properties [Line Items]
Number of real estate investments	9

Organization_Joint_Ventures_Eq

Organization (Joint Ventures, Equity Method Investments, Noncontrolling Interests) (Details) (USD $)	12 Months Ended			6 Months Ended	0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Jan. 14, 2009	Aug. 31, 2014	Feb. 28, 2014
						Parcel	sqft
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Contribution from noncontrolling interest	$3,894,000	$2,594,000	$5,082,000
Real estate loans receivable, net	74,400,000	43,237,000
Activity of Unconsolidated Entities [Roll Forward]
Beginning balance	3,573,000	3,573,000
Contributions	0	0	3,573,000
Distributions	-700,000	0	0
Ending balance	2,873,000	3,573,000	3,573,000	3,573,000
Variable Interest Entity, Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Maximum risk of loss	47,986,000	25,278,000
Assets held by VIEs	188,264,000	126,528,000
Assets held as collateral for debt	188,264,000	126,528,000
Liabilities held by VIEs	131,691,000	94,675,000
Variable Interest Entity, Not Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Maximum risk of loss	18,159,000	7,246,000
Activity of Unconsolidated Entities [Roll Forward]
Nonconsolidated carrying amount	2,873,000	3,573,000
Flagship Capital Joint Venture [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Parent ownership percentage	97.00%
Mezzanine loan commitment	88,867,000
Real estate loans receivable, net	59,114,000	39,564,000
WaterWall Place JV [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Parent ownership percentage	93.00%
The Rim [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Area of real estate property (sqft)	656,371
Mezzanine loan commitment	29,800,000
Real estate loans receivable, net	11,324,000	0
The Rim [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Area of real estate property (sqft)							656,371
Mezzanine loan commitment						29,800,000
Number of real estate properties						4
Real estate loans receivable, net	11,300,000
@ 1377 Equity Method Investment [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Mezzanine loan commitment	3,200,000
Real estate loans receivable, net	4,000,000
Unconsolidated VIE investment, ownership percentage			51.70%	51.70%
Secured loan held by VIE	23,300,000
Activity of Unconsolidated Entities [Roll Forward]
Contributions				3,600,000
Hines Global REIT, Inc [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Proceeds from issuance, initial public offering					10,000
Hines Global REIT, Inc [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Capital contributions to joint venture (net of distributions)	22,700,000	4,900,000
Proceeds from distributions received	6,500,000	12,800,000
Hines Global REIT, Inc [Member] | Brindleyplace JV [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Parent ownership percentage	60.00%
Hines Global REIT, Inc [Member] | Flagship Capital Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Parent ownership percentage	97.00%
Hines Global REIT Associates Limited Partnership [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Contribution from noncontrolling interest					$190,000
Noncontrolling interest, ownership percentage	0.01%	0.01%			95.00%
Moorfield Real Estate Fund II GP Ltd [Member] | Brindleyplace JV [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Noncontrolling interest, ownership percentage	40.00%
Flagship Capital GP [Member] | Flagship Capital Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Noncontrolling interest, ownership percentage	3.00%
Affiliate of Hines [Member] | WaterWall Place JV [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Noncontrolling interest, ownership percentage	7.00%

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (International Operations) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Intercompany Foreign Currency Balance [Line Items]
Recognition of accumulated other comprehensive income (loss) into earnings	($101,397)	($14,840)	$12,301
Amended loan agreement changed functional currency of the loan [Member]
Intercompany Foreign Currency Balance [Line Items]
Recognition of accumulated other comprehensive income (loss) into earnings		1,300
Repayment of intercompany loan with a foreign subsidiary [Member]
Intercompany Foreign Currency Balance [Line Items]
Recognition of accumulated other comprehensive income (loss) into earnings		6,200
Disposal of a Foreign Subsidiary [Member]
Intercompany Foreign Currency Balance [Line Items]
Foreign currency translation adjustment reclassified into earnings	$5,700

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Useful Lives of Real Estate) (Details)	12 Months Ended
	Dec. 31, 2014
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years
Electrical and Mechanical Installations [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	15 years
Electrical and Mechanical Installations [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	40 years

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Equity Method Investment, Other than Temporary Impairment	$0
Impairment of real estate	0	0	0
Deposits in foreign financial institutions	84,500,000
Allowance for doubtful accounts	1,900,000	2,000,000
Tenant inducement amortization	4,200,000	1,700,000	500,000
Amortization of deferred leasing costs	1,800,000	700,000	200,000
Amortization of deferred financing costs	6,900,000	5,200,000	3,400,000
Impairment of loans receivable	0	0	0
Allowance for uncollectible financing receivables	0	0
Other Assets [Abstract]
Deposits on investment property	15,000,000	0
Prepaid expenses	2,021,000	2,259,000
Deferred tax assets	8,127,000	7,340,000
Other	791,000	680,000
Other assets	25,939,000	10,279,000
Liability related to prepaid rental payments	34,600,000	27,200,000
Straight line rent receivable	47,400,000	26,900,000
Common stock redemption liabilities	$5,500,000	$2,300,000

Investment_Property_Details

Investment Property (Details)

3 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2014

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2014

Nov. 30, 2014

Nov. 30, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2014

Dec. 31, 2013

Apr. 30, 2012

Apr. 30, 2012

Mar. 31, 2011

Mar. 31, 2011

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

144 Montague [Member]

144 Montague [Member]

144 Montague [Member]

Stonecutter Court [Member]

Stonecutter Court [Member]

Building And Building Improvements [Member]

Building And Building Improvements [Member]

Land [Member]

Land [Member]

Construction in Progress [Member]

Construction in Progress [Member]

144 Montague [Member]

144 Montague [Member]

Stonecutter Court [Member]

Stonecutter Court [Member]

USD ($)

USD ($)

AUD

USD ($)

GBP (£)

USD ($)

USD ($)

USD ($)

USD ($)

Multi-Family Development [Member]

Multi-Family Development [Member]

USD ($)

AUD

USD ($)

GBP (£)

USD ($)

USD ($)

Property Subject To Or Available For Operating Lease [Line Items]

Investment property, gross

$2,501,176,000

$2,371,242,000

$602,344,000

$523,022,000

$24,300,000

$64,000,000

Less: accumulated depreciation

-138,821,000

-94,414,000

Investment property, net

2,964,699,000

2,964,699,000

2,799,850,000

2,362,355,000

2,276,828,000

Contract sales price, real estate

79,300,000

93,000,000

175,600,000

112,000,000

Contract purchase price, real estate

91,300,000

88,100,000

145,600,000

90,900,000

Foreign currency exchange rate, translation (usd per AUD; usd per GBP)

0.83

1.57

1.04

1.6

Gain on sale of investment real estate

$64,003,000

$0

$0

$0

$64,003,000

$0

$0

$2,800,000

$61,200,000

Investment_Property_Intangible

Investment Property (Intangible Assets) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Finite Lived Intangible Assets [Line Items]
Out-of-Market Lease Liabilities, Cost	($104,528)	($80,844)
Out-of-Market Lease Liabilities, Less: accumulated amortization	20,143	12,489
Net	743,465	695,724
Out-of-Market Lease Liabilities, Net	-84,385	-68,355
In-Place Leases [Member]
Finite Lived Intangible Assets [Line Items]
Cost	890,495	772,948
Less: accumulated amortization	-221,316	-166,109
Net	669,179	606,839
Out-of-Market Lease Assets [Member]
Finite Lived Intangible Assets [Line Items]
Cost	110,649	116,818
Less: accumulated amortization	-36,363	-27,933
Net	$74,286	$88,885

Investment_Property_Intangible1

Investment Property (Intangible Assets Amortization) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In-Place Leases [Member]
Finite Lived Intangible Assets [Line Items]
Amortization of lease intangibles	$127,200,000	$92,500,000	$57,200,000
Finite Lived Intangible Assets Future Amortization Expense Abstract
2015	106,023,000
2016	95,411,000
2017	72,530,000
2018	52,479,000
2019	41,750,000
Out-of-Market Leases, Net [Member]
Finite Lived Intangible Assets [Line Items]
Amortization of lease intangibles	5,400,000	6,000,000	4,500,000
Finite Lived Intangible Assets Future Amortization Expense Abstract
2015	4,750,000
2016	5,158,000
2017	3,779,000
2018	293,000
2019	($1,516,000)

Investment_Property_Future_Min

Investment Property (Future Minimum Rent) (Details) (USD $)	Dec. 31, 2014
Operating Leases Future Minimum Payments Receivable Abstract
2015	$316,334,000
2016	296,779,000
2017	278,756,000
2018	208,424,000
2019	181,803,000
Thereafter	1,106,912,000
Total	2,389,008,000
Future Minimum Service Rentals Fiscal Year Maturity [Abstract]
2015	3,000,000
2016	2,900,000
2017	2,500,000
2018	2,500,000
2019	1,300,000
Thereafter	$4,300,000

Investment_Property_Tenant_Con

Investment Property (Tenant Concentration) (Details) (Rental Revenue [Member], Tenant Concentration Accounting Risk [Member])	12 Months Ended
	Dec. 31, 2012
Rental Revenue [Member] | Tenant Concentration Accounting Risk [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%

Recent_Acquisitions_of_Real_Es2

Recent Acquisitions of Real Estate (Business Combinations) (Details) (USD $)

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Feb. 13, 2014

Mar. 28, 2014

Jun. 03, 2014

Oct. 31, 2014

Feb. 07, 2013

Feb. 28, 2013

Mar. 27, 2013

Mar. 28, 2013

Apr. 30, 2013

14-May-13

Jun. 21, 2013

Jul. 23, 2013

Aug. 12, 2013

Aug. 29, 2013

Oct. 18, 2013

Dec. 09, 2013

Mar. 29, 2012

Apr. 16, 2012

Jul. 13, 2012

Aug. 01, 2012

Aug. 31, 2012

property

property

property

industrial_park

Business Acquisition [Line Items]

Number of real estate properties acquired

4

13

9

Aggregate net purchase price

$732,900,000

$1,700,000,000

$626,700,000

The Rim [Member]

Business Acquisition [Line Items]

Building and Improvements

90,990,000

Land

65,890,000

In-place Lease Intangibles

41,360,000

Out-of- Market Lease Intangibles, Net

-21,940,000

Total

176,300,000

25 Cabot Square [Member]

Business Acquisition [Line Items]

Building and Improvements

165,121,000

In-place Lease Intangibles

206,640,000

Out-of- Market Lease Intangibles, Net

-16,000

Total

371,745,000

Forchheim [Member]

Business Acquisition [Line Items]

Building and Improvements

34,663,000

Land

8,481,000

In-place Lease Intangibles

5,986,000

Out-of- Market Lease Intangibles, Net

41,000

Total

49,171,000

818 Bourke [Member]

Business Acquisition [Line Items]

Building and Improvements

82,867,000

Land

36,487,000

In-place Lease Intangibles

17,082,000

Out-of- Market Lease Intangibles, Net

-792,000

Total

135,644,000

Mercedes Benz Bank [Member]

Business Acquisition [Line Items]

Building and Improvements

47,643,000

Land

11,953,000

In-place Lease Intangibles

7,093,000

Out-of- Market Lease Intangibles, Net

3,533,000

Total

70,222,000

One Westferry Circus [Member]

Business Acquisition [Line Items]

Building and Improvements

48,874,000

In-place Lease Intangibles

74,693,000

Out-of- Market Lease Intangibles, Net

1,049,000

Total

124,616,000

465 Victoria [Member]

Business Acquisition [Line Items]

Building and Improvements

48,788,000

Land

26,566,000

In-place Lease Intangibles

17,712,000

Out-of- Market Lease Intangibles, Net

-2,233,000

Total

90,833,000

Riverside Center [Member]

Business Acquisition [Line Items]

Building and Improvements

125,014,000

Land

45,888,000

In-place Lease Intangibles

30,360,000

Out-of- Market Lease Intangibles, Net

-4,170,000

Total

197,092,000

New City [Member]

Business Acquisition [Line Items]

Building and Improvements

115,208,000

In-place Lease Intangibles

46,117,000

Out-of- Market Lease Intangibles, Net

2,137,000

Total

163,462,000

825 Ann [Member]

Business Acquisition [Line Items]

Building and Improvements

83,802,000

Land

20,669,000

In-place Lease Intangibles

23,725,000

Total

128,196,000

The Campus at Playa Vista [Member]

Business Acquisition [Line Items]

Building and Improvements

125,567,000

Land

41,160,000

In-place Lease Intangibles

37,320,000

Out-of- Market Lease Intangibles, Net

12,580,000

Total

216,627,000

Perspective Defense [Member]

Business Acquisition [Line Items]

Building and Improvements

109,704,000

Land

29,039,000

In-place Lease Intangibles

22,038,000

Out-of- Market Lease Intangibles, Net

5,060,000

Total

165,841,000

The Markets at Town Center [Member]

Business Acquisition [Line Items]

Building and Improvements

76,067,000

Land

52,130,000

In-place Lease Intangibles

19,020,000

Out-of- Market Lease Intangibles, Net

-12,210,000

Total

135,007,000

The Avenue Murfreesboro [Member]

Business Acquisition [Line Items]

Building and Improvements

71,990,000

Land

54,940,000

In-place Lease Intangibles

47,350,000

Out-of- Market Lease Intangibles, Net

-11,280,000

Total

163,000,000

2300 Main [Member]

Business Acquisition [Line Items]

Building and Improvements

27,940,000

Land

3,570,000

In-place Lease Intangibles

7,990,000

Total

39,500,000

Fiege Mega Centre [Member]

Business Acquisition [Line Items]

Building and Improvements

36,005,000

Land

10,107,000

In-place Lease Intangibles

7,481,000

Total

53,593,000

55 M Street [Member]

Business Acquisition [Line Items]

Building and Improvements

85,277,000

Land

24,810,000

In-place Lease Intangibles

34,730,000

Out-of- Market Lease Intangibles, Net

-3,940,000

Total

140,877,000

Poland Logistics Portfolio [Member]

Business Acquisition [Line Items]

Building and Improvements

97,627,000

Land

25,893,000

In-place Lease Intangibles

33,062,000

Out-of- Market Lease Intangibles, Net

644,000

Total

157,226,000

Number of industrial parks

5

4

144 Montague [Member]

Business Acquisition [Line Items]

Building and Improvements

49,424,000

Land

13,803,000

In-place Lease Intangibles

28,083,000

Total

91,310,000

100 Brookes Street [Member]

Business Acquisition [Line Items]

Building and Improvements

41,404,000

Land

8,600,000

In-place Lease Intangibles

12,859,000

Out-of- Market Lease Intangibles, Net

4,737,000

Total

67,600,000

Minneapolis Retail Center [Member]

Business Acquisition [Line Items]

Building and Improvements

78,711,000

Land

30,792,000

In-place Lease Intangibles

34,176,000

Out-of- Market Lease Intangibles, Net

-13,078,000

Total

130,601,000

550 Terry Francois [Member]

Business Acquisition [Line Items]

Building and Improvements

109,760,000

Land

41,270,000

In-place Lease Intangibles

20,860,000

Out-of- Market Lease Intangibles, Net

8,110,000

Total

$180,000,000

Recent_Acquisitions_of_Real_Es3

Recent Acquisitions of Real Estate (Intangible Assets) (Details)	12 Months Ended
	Dec. 31, 2014
The Rim [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	35 years 3 months 7 days
25 Cabot Square [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	2 years 11 months 27 days
818 Bourke [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	3 years 1 month 10 days
One Westferry Circus [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	13 years 30 days
465 Victoria [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	7 years 3 months 18 days
Riverside Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	6 years 10 months 21 days
New City [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	2 years 11 months 16 days
The Campus at Playa Vista [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	7 years 30 days
Perspective Defense [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	3 years 9 months 11 days
The Markets at Town Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	6 years 11 months 21 days
The Avenue Murfreesboro [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	17 years 2 months 25 days
55 M Street [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	7 years 3 months 22 days
Poland Logistics Portfolio [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	3 years 4 months 13 days
Minneapolis Retail Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Below-Market Lease Liabilities, weighted average amortization period	9 years 2 months 12 days
In-Place Leases [Member] | The Rim [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	16 years 5 months 23 days
In-Place Leases [Member] | 25 Cabot Square [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	11 years 8 months 11 days
In-Place Leases [Member] | Forchheim [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	13 years 5 months 1 day
In-Place Leases [Member] | 818 Bourke [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 1 month 10 days
In-Place Leases [Member] | Mercedes Benz Bank [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 11 months 23 days
In-Place Leases [Member] | One Westferry Circus [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	8 years 4 months 13 days
In-Place Leases [Member] | 465 Victoria [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 8 months 12 days
In-Place Leases [Member] | Riverside Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	6 years 2 months 5 days
In-Place Leases [Member] | New City [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 9 months 15 days
In-Place Leases [Member] | 825 Ann [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	9 years 6 months 15 days
In-Place Leases [Member] | The Campus at Playa Vista [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	6 years 8 months 12 days
In-Place Leases [Member] | Perspective Defense [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	3 years 9 months 11 days
In-Place Leases [Member] | The Markets at Town Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	9 years 4 months 28 days
In-Place Leases [Member] | The Avenue Murfreesboro [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 1 month 1 day
In-Place Leases [Member] | 2300 Main [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 7 months 2 days
In-Place Leases [Member] | Fiege Mega Centre [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	10 years 2 months 1 day
In-Place Leases [Member] | 55 M Street [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	7 years 29 days
In-Place Leases [Member] | Poland Logistics Portfolio [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 1 month 10 days
In-Place Leases [Member] | 144 Montague [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	9 years 7 months 6 days
In-Place Leases [Member] | 100 Brookes Street [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 7 months 6 days
In-Place Leases [Member] | Minneapolis Retail Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	6 years 10 months 24 days
In-Place Leases [Member] | 550 Terry Francois [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 2 months 12 days
Out-of-Market Lease Assets [Member] | The Rim [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	12 years 10 months 13 days
Out-of-Market Lease Assets [Member] | 25 Cabot Square [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	6 months 4 days
Out-of-Market Lease Assets [Member] | Forchheim [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	13 years 5 months 1 day
Out-of-Market Lease Assets [Member] | 818 Bourke [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	3 years 3 months 29 days
Out-of-Market Lease Assets [Member] | Mercedes Benz Bank [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 11 months 23 days
Out-of-Market Lease Assets [Member] | One Westferry Circus [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	9 years 11 months 12 days
Out-of-Market Lease Assets [Member] | 465 Victoria [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 2 months 12 days
Out-of-Market Lease Assets [Member] | Riverside Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	1 year 4 days
Out-of-Market Lease Assets [Member] | New City [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	4 years 3 months 11 days
Out-of-Market Lease Assets [Member] | The Campus at Playa Vista [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	8 years 6 months 30 days
Out-of-Market Lease Assets [Member] | Perspective Defense [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	3 years 9 months 4 days
Out-of-Market Lease Assets [Member] | The Markets at Town Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 months 30 days
Out-of-Market Lease Assets [Member] | The Avenue Murfreesboro [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	6 years 9 months 7 days
Out-of-Market Lease Assets [Member] | 55 M Street [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	7 years 10 months 2 days
Out-of-Market Lease Assets [Member] | Poland Logistics Portfolio [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 6 months 22 days
Out-of-Market Lease Assets [Member] | 100 Brookes Street [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 7 months 6 days
Out-of-Market Lease Assets [Member] | Minneapolis Retail Center [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	8 years 8 months 12 days
Out-of-Market Lease Assets [Member] | 550 Terry Francois [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Lease Assets, weighted average amortization period	5 years 2 months 12 days

Recent_Acquisitions_of_Real_Es4

Recent Acquisitions of Real Estate (Pro Forma Information) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
2014 Acquisitions [Member]
Business Acquisition Pro Forma Information [Abstract]
Acquisition related expenses and fees excluded from pro forma net loss	$47,500,000	$82,100,000
Revenues, pro forma	477,692,000	392,489,000
Net income (loss), pro forma	56,503,000	-20,717,000
Basic and diluted income (loss) per common share (in dollars per share)	$0.21	($0.11)
2013 Acquisitions [Member]
Business Acquisition Pro Forma Information [Abstract]
Acquisition related expenses and fees excluded from pro forma net loss		82,100,000	28,700,000
Revenues, pro forma		388,133,000	348,012,000
Net income (loss), pro forma		-21,472,000	-31,255,000
Basic and diluted income (loss) per common share (in dollars per share)		($0.12)	($0.20)
2012 Acquisitions [Member]
Business Acquisition Pro Forma Information [Abstract]
Acquisition related expenses and fees excluded from pro forma net loss			28,700,000	20,000,000
Revenues, pro forma			222,914,000	167,137,000
Net income (loss), pro forma			-3,157,000	-47,170,000
Basic and diluted income (loss) per common share (in dollars per share)			($0.03)	($0.39)
The Rim [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date	17,240,000
Net income (loss) of acquiree since acquisition date	369,000
25 Cabot Square [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date	26,666,000
Net income (loss) of acquiree since acquisition date	-16,639,000
Forchheim [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date	2,110,000
Net income (loss) of acquiree since acquisition date	-3,974,000
818 Bourke [Member] | 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date	1,980,000
Net income (loss) of acquiree since acquisition date	-7,700,000
Mercedes Benz Bank [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		5,752,000
Net income (loss) of acquiree since acquisition date		-4,781,000
One Westferry Circus [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		11,938,000
Net income (loss) of acquiree since acquisition date		-6,717,000
465 Victoria [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		7,403,000
Net income (loss) of acquiree since acquisition date		-5,576,000
Riverside Center [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		15,854,000
Net income (loss) of acquiree since acquisition date		2,468,000
New City [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		11,509,000
Net income (loss) of acquiree since acquisition date		-4,167,000
825 Ann [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		7,724,000
Net income (loss) of acquiree since acquisition date		-7,318,000
The Campus at Playa Vista [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		12,815,000
Net income (loss) of acquiree since acquisition date		1,244,000
Perspective Defense [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		8,325,000
Net income (loss) of acquiree since acquisition date		-12,035,000
The Markets at Town Center [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		5,654,000
Net income (loss) of acquiree since acquisition date		2,482,000
The Avenue Murfreesboro [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		5,423,000
Net income (loss) of acquiree since acquisition date		-191,000
2300 Main [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		1,428,000
Net income (loss) of acquiree since acquisition date		-146,000
Fiege Mega Centre [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		877,000
Net income (loss) of acquiree since acquisition date		-3,353,000
55 M Street [Member] | 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date		799,000
Net income (loss) of acquiree since acquisition date		-2,501,000
Poland Logistics Portfolio [Member] | 2012 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date			11,595,000
Net income (loss) of acquiree since acquisition date			-6,071,000
144 Montague [Member] | 2012 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date			7,153,000
Net income (loss) of acquiree since acquisition date			-4,903,000
100 Brookes Street [Member] | 2012 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date			3,291,000
Net income (loss) of acquiree since acquisition date			-4,680,000
Minneapolis Retail Center [Member] | 2012 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date			7,536,000
Net income (loss) of acquiree since acquisition date			-1,317,000
550 Terry Francois [Member] | 2012 Acquisitions [Member]
Business Acquisition [Line Items]
Revenue of acquiree since acquisition date			6,362,000
Net income (loss) of acquiree since acquisition date			$1,989,000

Real_Estate_Loans_Receivable_D

Real Estate Loans Receivable (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Real Estate Loans Receivable	$74,400	$43,237
Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	7.38%
Total Loan Commitment	88,867
Loans receivable, gross	59,754	39,918
Less: Origination fees	-640	-354
Total Real Estate Loans Receivable	59,114	39,564
@1377 Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	10.00%
Total Loan Commitment	3,962		3,200
Total Real Estate Loans Receivable	3,962	3,673
The Rim [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	8.50%
Total Loan Commitment	29,800
Total Real Estate Loans Receivable	11,324	0
Norchester Village [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loan Commitment	4,961
Loans receivable, gross	0	4,289
Bay Park Apartments [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loan Commitment	3,232
Loans receivable, gross	0	3,212
Houston Retail Portfolio [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	7.60%
Total Loan Commitment	11,804
Loans receivable, gross	11,457	11,363
Motor Circle [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	8.00%
Total Loan Commitment	3,175
Loans receivable, gross	2,423	2,412
Deer Creek [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loan Commitment	5,450
Loans receivable, gross	0	5,287
Casa Blanca [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loan Commitment	5,742
Loans receivable, gross	0	5,350
Falls of Kirkwood [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	8.00%
Total Loan Commitment	6,300
Loans receivable, gross	6,222	3,641
Falls of Town Park Apartment [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	7.75%
Total Loan Commitment	5,327
Loans receivable, gross	5,227	4,364
Precinct Villages [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	8.50%
Total Loan Commitment	2,595
Loans receivable, gross	1,811	0
Manor Palms [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	7.00%
Total Loan Commitment	4,109
Loans receivable, gross	3,979	0
Randalls [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	6.25%
Total Loan Commitment	10,939
Loans receivable, gross	8,110	0
Finesilver [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	6.45%
Total Loan Commitment	7,233
Loans receivable, gross	5,165	0
Dymaxion Apartments [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	7.60%
Total Loan Commitment	8,500
Loans receivable, gross	7,684	0
Marbach Park Apartments [Member] | Flagship Capital Joint Venture [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Rate (percent)	7.60%
Total Loan Commitment	9,500
Loans receivable, gross	$7,676	$0

Debt_Financing_Details

Debt Financing (Details) (USD $)	12 Months Ended		3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 30, 2015	Apr. 30, 2014	Apr. 30, 2012	Jul. 31, 2014	Dec. 31, 2011	Jul. 31, 2012
Debt Instrument [Line Items]
Debt, weighted average years to maturity	2 years 9 months	3 years 2 months 9 days
Debt, weighted average interest rate (percent)	2.90%	3.30%
Principal Outstanding	$2,112,642,000	$1,936,614,000
Unamortized Discount	-283,000	-713,000
Notes Payable	2,112,359,000	1,935,901,000
Notes payable to affiliates	17,601,000	37,561,000
Total debt including affiliates	2,129,960,000	1,973,462,000
Notes payable, subject to interest rate swap	236,000,000	333,000,000
Variable rate debt, capped	508,600,000
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	1.00%
Derivative, cap interest rate (percent)	1.00%
Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	6.25%
Derivative, cap interest rate (percent)	4.50%
Revolving Credit Facility- Revolving Loan [Member]
Debt Instrument [Line Items]
Interest Rate, LOC (percent)	2.14%
Principal Outstanding, LOC	122,894,000	204,467,000
Foreign currency commitments, maximum borrowing capacity				400,000,000	212,500,000
Credit facility, maximum borrowing capacity (removal of)				750,000,000
Credit facility, number of extension options	2
Credit facility, period of extension options	1 year
Revolving Credit Facility- Term Loan [Member]
Debt Instrument [Line Items]
Interest Rate, LOC (percent)	1.95%
Principal Outstanding, LOC	378,000,000	200,000,000
Credit agreement, current borrowing capacity				378,000,000	200,000,000
Credit facility, maximum borrowing capacity (removal of)				250,000,000
Credit facility, period of extension options	1 year
Revolving Credit Facility (Including Revolving and Term Loans) [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity (removal of)				1,000,000,000
Credit facility, additional borrowings	673,500,000
Credit facility, repayments	577,300,000
Gain (loss) on foreign currency borrowings	-300,000
Revolving Credit Facility (Including Revolving and Term Loans) [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Principal Outstanding, LOC			667,700,000
Credit facility, repayments			167,000,000
Flagship Capital Joint Venture [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate, LOC (percent)	4.25%
Principal Outstanding, LOC	25,162,000	11,047,000
Credit agreement, current borrowing capacity						50,000,000
WaterWall Place JV [Member] | Construction Loan Payable [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	2.41%
Principal Outstanding	44,092,000	30,107,000
WaterWall Place JV [Member] | Construction Loan Payable [Member] | Affiliated Entity [Member]
Debt Instrument [Line Items]
Notes payable to affiliates	0	20,341,000
Construction loan, maximum commitment							22,800,000
Aviva Coral Gables, JV (formerly Ponce And Bird JV) [Member] | Construction Loan Payable [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	2.41%
Principal Outstanding	38,431,000	6,557,000
Aviva Coral Gables, JV (formerly Ponce And Bird JV) [Member] | Construction Loan Payable [Member] | Affiliated Entity [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	2.15%
Notes payable to affiliates	17,601,000	17,220,000
Construction loan, maximum commitment								20,100,000
Line of credit, percentage of leased units to trigger maturity date	95.00%
Brindleyplace JV [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Portion of principal fixed per interest rate swap	75.00%
Portion of principal not subject to interest rate swap	25.00%
Interest Rate (percent)	3.46%
Principal Outstanding	188,034,000	199,608,000
Hock Plaza [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	5.58%
Principal Outstanding	75,657,000	76,839,000
Southpark [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	5.67%
Principal Outstanding	18,000,000	18,000,000
50 South Sixth [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	3.62%
Principal Outstanding	95,000,000	95,000,000
Stonecutter Court [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Principal Outstanding	0	88,296,000
Gogolevsky 11 [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	6.48%
Principal Outstanding	35,100,000	36,500,000
Campus At Marlborough [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	5.21%
Principal Outstanding	0	54,596,000
144 Montague [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Principal Outstanding	0	49,937,000
100 Brookes Street [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	5.49%
Principal Outstanding	35,254,000	38,354,000
Poland Logistics Portfolio [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	2.88%
Principal Outstanding	76,797,000	88,812,000
Minneapolis Retail Center [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	3.50%
Principal Outstanding	65,500,000	65,500,000
825 Ann [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	4.79%
Principal Outstanding	66,091,000	71,901,000
Mercedes Benz Bank [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	1.58%
Principal Outstanding	41,346,000	47,304,000
465 Victoria [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	4.85%
Principal Outstanding	43,396,000	47,211,000
New City [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	2.88%
Principal Outstanding	95,934,000	111,532,000
One Westferry Circus [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	3.30%
Principal Outstanding	74,554,000	79,142,000
The Campus at Playa Vista [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	1.66%
Principal Outstanding	115,000,000	115,000,000
Perspective Defense [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	2.59%
Principal Outstanding	85,085,000	96,362,000
Fiege Mega Centre [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	1.78%
Principal Outstanding	28,373,000	32,542,000
55 M Street [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	1.62%
Principal Outstanding	72,000,000	72,000,000
25 Cabot Square [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	3.50%
Principal Outstanding	192,209,000	0
Forchheim [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	1.90%
Principal Outstanding	26,106,000	0
818 Bourke [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Interest Rate (percent)	3.49%
Principal Outstanding	$74,627,000	$0
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt instrument, description of variable rate basis	LIBOR, EURIBOR or the BBSY screen rate

Debt_Financing_Maturity_Schedu

Debt Financing (Maturity Schedule) (Details) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Maturities Of Long Term Debt Abstract
2015	$384,770
2016	418,256
2017	604,868
2018	120,664
2019	308,222
Thereafter	$293,463

Derivative_Instruments_Details

Derivative Instruments (Details) (Not Designated as Hedging Instrument [Member])

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Jul. 31, 2016

Dec. 31, 2014

Dec. 31, 2014

Jan. 31, 2015

Jan. 31, 2016

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2014

In Thousands, unless otherwise specified

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Forward Contracts [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Euro Interbank Offered Rate (Euribor) [Member]

Euro Interbank Offered Rate (Euribor) [Member]

Euro Interbank Offered Rate (Euribor) [Member]

Euro Interbank Offered Rate (Euribor) [Member]

Euro Interbank Offered Rate (Euribor) [Member]

Euro Interbank Offered Rate (Euribor) [Member]

Bank Bill Swap Rate (BBSW) [Member]

Bank Bill Swap Rate (BBSW) [Member]

Bank bill swap bid rate (bbsy) [Member]

Bank bill swap bid rate (bbsy) [Member]

Interest Rate Swap Effective July 2010 [Member]

Interest Rate Swap Effective November 4, 2010 [Member]

Interest Rate Cap Effective August 2, 2012 [Member]

Interest Rate Cap Effective August 13, 2012 [Member]

Interest Rate Cap Effective October 9, 2012 [Member]

Interest Rate Cap Effective January 7, 2013 [Member]

Interest Rate Cap Effective March 11, 2013 [Member]

Interest Rate Cap Effective March 20, 2013 [Member]

Interest Rate Cap Effective July 30, 2013 [Member]

Interest Rate Caps Effective April 11, 2013 and May 6, 2013 [Member]

Interest Rate Cap Effective July 25, 2013 [Member]

Interest Rate Cap Effective July 25, 2013 [Member]

Interest Rate Cap Effective October 18, 2013 [Member]

Interest Rate Cap Effective September 5, 2014 [Member]

Interest Rate Cap Effective September 5, 2014 [Member]

Interest Rate Cap Effective September 5, 2014 [Member]

Interest Rate Cap Effective November 27, 2014 [Member]

Foreign Currency Forward Contract Effective June 26, 2014 [Member]

Foreign Currency Forward Contract Effective June 26, 2014 [Member]

Foreign Currency Forward Contract Effective June 26, 2014 [Member]

Foreign Currency Forward Contract Effective September 10, 2014 [Member]

Foreign Currency Forward Contract Effective September 10, 2014 [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

Interest Rate Cap [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Scenario, Forecast [Member]

USD ($)

USD ($)

Scenario, Forecast [Member]

Scenario, Forecast [Member]

USD ($)

USD ($)

GBP (£)

USD ($)

GBP (£)

Interest Rate Swap Effective July 2010 [Member]

Interest Rate Swap Effective November 4, 2010 [Member]

Interest Rate Cap Effective January 7, 2013 [Member]

Interest Rate Cap Effective September 5, 2014 [Member]

Interest Rate Cap Effective August 2, 2012 [Member]

Interest Rate Cap Effective October 9, 2012 [Member]

Interest Rate Cap Effective March 11, 2013 [Member]

Interest Rate Caps Effective April 11, 2013 and May 6, 2013 [Member]

Interest Rate Cap Effective July 25, 2013 [Member]

Interest Rate Cap Effective October 18, 2013 [Member]

Interest Rate Cap Effective March 20, 2013 [Member]

Interest Rate Cap Effective July 30, 2013 [Member]

Interest Rate Cap Effective August 13, 2012 [Member]

Interest Rate Cap Effective November 27, 2014 [Member]

Term Number One [Member]

Term Number Two [Member]

Derivative [Line Items]

Notional Amount

$141,026

$95,000

$57,890

$17,628

$12,048

$45,500

$41,346

$22,511

$49,570

$67,413

$85,084

$28,372

$43,964

$37,315

£ 105,800

£ 105,800

Interest Rate Received

LIBOR

LIBOR

LIBOR

LIBOR

EURIBOR

EURIBOR

EURIBOR

EURIBOR

EURIBOR

EURIBOR

BBSW

BBSW

BBSY

BBSY

Pay Rate /Strike Rate (percent)

2.29%

1.37%

Derivative, cap interest rate (percent)

2.00%

4.00%

2.00%

1.25%

1.50%

4.33%

4.50%

2.50%

1.70%

2.00%

2.00%

1.00%

2.00%

3.25%

4.00%

Derivative currency, bought

USD

USD

GBP

GBP

Derivative currency, sold

GBP

USD

USD

Traded Currency Rate

1.69

1.62

Derivative_Instruments_Fair_Va

Derivative Instruments (Fair Value on Balance Sheet) (Details) (Not Designated as Hedging Instrument [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]
Derivative Assets	$14,661	$5,294
Derivative Liabilities	-9,848	-9,817
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	0	0
Derivative Liabilities	-2,684	-9,329
Interest Rate Cap [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	345	4,428
Derivative Liabilities	0	0
Forward Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	14,316	866
Derivative Liabilities	($7,164)	($488)

Derivative_Instruments_Stateme

Derivative Instruments (Statement of Operations Gain Loss) (Details) (Not Designated as Hedging Instrument [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative Instruments	$7,322	$9,909	$1,398
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative Instruments	4,122	5,910	-1,479
Interest Rate Cap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative Instruments	-4,131	-828	-1,184
Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Derivative Instruments	$7,331	$4,827	$4,061

Distributions_Details

Distributions (Details) (USD $)	12 Months Ended			39 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 27, 2015
Distributions [Line Items]
Cash Distributions, Stockholders	$79,555	$56,702	$35,581
Distributions Reinvested, Stockholders	91,530	63,062	38,394
Total Declared, Stockholders	171,085	119,764	73,975
Total Declared, Noncontrolling Interests	4,668	3,331	3,159
Moorfield [Member]
Distributions [Line Items]
Total Declared, Noncontrolling Interests	$4,300	$2,800	$2,900
Subsequent Event [Member]
Distributions [Line Items]
Distributions declared, per share, per day (in dollars per share)				$0.00

Related_Party_Transactions_by_

Related Party Transactions (by Category) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Due to affiliates	$14,106	$16,419
Dealer Manager [Member] | Selling Commissions [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	27,021	56,259	40,560
Due to affiliates	0	658
Dealer Manager [Member] | Dealer Manager Fee [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	9,334	19,321	13,992
Due to affiliates	0	-5
The Advisor [Member] | Issuer Costs [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	1,975	7,137	5,710
Due to affiliates	0	482
The Advisor [Member] | Disposition Fee [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	2,543	0	0
Due to affiliates	0	0
The Advisor [Member] | Other [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	6,713	5,216	2,894
Due to affiliates	1,657	1,166
The Advisor and Affiliate of Hines [Member] | Acquisition Fee [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	18,188	40,136	16,064
Due to affiliates	1,492	0
The Advisor and Affiliate of Hines [Member] | Asset Management Fee [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	34,881	20,354	5,942
Due to affiliates	8,402	7,241
Hines [Member] | Property Management Fees [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	6,680	5,599	3,000
Due to affiliates	159	-144
Hines [Member] | Construction Management Fees [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	2,556	4,010	119
Due to affiliates	35	83
Hines [Member] | Leasing Fees [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	2,138	3,371	228
Due to affiliates	1,363	1,735
Hines [Member] | Redevelopment Construction Management Fees [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	9	0	107
Due to affiliates	0	0
Hines [Member] | Expense Reimbursements [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	10,777	7,074	4,562
Due to affiliates	$998	$5,203

Related_Party_Transactions_Nar

Related Party Transactions (Narrative) (Details) (USD $)	12 Months Ended			3 Months Ended	34 Months Ended	24 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2012
Related Party Transaction [Line Items]
Real estate loans receivable	74,400,000	$43,237,000			74,400,000	43,237,000
@ 1377 Development [Member]
Related Party Transaction [Line Items]
Mezzanine loan commitment	3,962,000				3,962,000		3,200,000
Real estate loans receivable	3,962,000	3,673,000			3,962,000	3,673,000
Hines [Member] | Development Management Fees [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	3.00%
Hines [Member] | Construction Management Fees [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	5.00%
Related party transaction, expenses	2,556,000	4,010,000	119,000
Dealer Manager [Member] | Selling Commission [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	7.50%
Maximum percentage on gross offering proceeds, re-allowed (percent)	7.00%
Dealer Manager [Member] | Dealer Manager Fee [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	2.50%
Maximum percentage on gross offering proceeds, re-allowed (percent)	1.50%
Dealer Manager [Member] | Reimbursements For Distribution And Marketing Related Costs [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	1.00%
The Advisor [Member]
Related Party Transaction [Line Items]
Related party asset management fee	34,900,000	20,400,000	5,900,000
Number of consecutive quarters for reimbursement of excess operating expenses	4
Maximum percentage of advisor fees and expenses against gross proceeds (percent)	15.00%
The Advisor [Member] | Average Invested Assets [Member]
Related Party Transaction [Line Items]
Threshold for reimbursement of excess operating expenses (percent)	2.00%
The Advisor [Member] | Modified Net Income [Member]
Related Party Transaction [Line Items]
Threshold for reimbursement of excess operating expenses (percent)	25.00%
The Advisor [Member] | Disposition Fee [Member]
Related Party Transaction [Line Items]
Related party transaction, expenses	2,543,000	0	0
The Advisor [Member] | Acquisition Fee [Member]
Related Party Transaction [Line Items]
Related party fee, percentage				2.00%	2.25%
The Advisor [Member] | Asset Management Fee [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	0.13%
Asset management fee, waiver percentage (less than)	100.00%					100.00%
The Advisor [Member] | Waived Asset Management Fee [Member]
Related Party Transaction [Line Items]
Related party asset management fee		$12,200,000
The Advisor [Member] | Disposition Fee [Member]
Related Party Transaction [Line Items]
Related party fee, percentage	1.00%
The Advisor [Member] | Special OP Units [Member]
Related Party Transaction [Line Items]
Related party distributions, result of special OP units (percent)	15.00%
Cumulative non-compounded annual pre-tax return (percent)	8.00%

Noncontrolling_Interests_Detai

Noncontrolling Interests (Details)

12 Months Ended

1 Months Ended

12 Months Ended

Share data in Thousands, except Per Share data, unless otherwise specified

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

USD ($)

USD ($)

USD ($)

Moorfield [Member]

Moorfield [Member]

Moorfield [Member]

WaterWall Place JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Flagship Capital JV [Member]

Flagship Capital JV [Member]

Flagship Capital JV [Member]

Aviva Coral Gables, JV (formerly Ponce And Bird JV) [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

Series B3 Convertible Preferred Equity Certficates [Member]

USD ($)

USD ($)

USD ($)

Affiliate of Hines [Member]

Moorfield [Member]

Moorfield [Member]

Moorfield [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

Brindleyplace JV [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

GBP (£)

USD ($)

GBP (£)

USD ($)

GBP (£)

Moorfield [Member]

Moorfield [Member]

Moorfield [Member]

USD ($)

USD ($)

USD ($)

Noncontrolling Interest [Line Items]

Issuance of preferred stock, shares

1,300

1,300

1,200

1,200

2,500

2,500

Contribution from noncontrolling interest

$3,894,000

$2,594,000

$5,082,000

$1,500,000

$400,000

$600,000

$1,000,000

$2,000,000

£ 1,300,000

$2,000,000

£ 1,200,000

$4,100,000

£ 2,500,000

Preferred stock, redemption price (in GBP per share)

£ 1

Distributions declared to noncontrolling interests

4,668,000

3,331,000

3,159,000

4,300,000

2,800,000

2,900,000

300,000

500,000

300,000

Distributions On Convertible Preferred Equity Certificates

4,300,000

2,800,000

2,900,000

Net income (loss), attributable to noncontrolling interest

1,500,000

-300,000

-2,000,000

In-kind contribution from noncontrolling interest

$0

$0

$3,000,000

$3,000,000

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate swaps	($9,848,000)	($9,817,000)
Interest rate caps	14,661,000	5,294,000
Notes payable, book value	2,129,960,000	1,973,462,000
Fair Value Measurements Recurring [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign currency forwards - Assets	14,316,000	866,000
Foreign currency forwards - Liabilities	-7,164,000	-488,000
Fair Value Measurements Recurring [Member] | Interest Rate Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate swaps	-2,684,000	-9,329,000
Fair Value Measurements Recurring [Member] | Interest Rate Cap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate caps	345,000	4,428,000
Fair Value Measurements Recurring [Member] | Quoted Prices In Active Markets for Identical Items (Level 1) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign currency forwards - Assets	0	0
Foreign currency forwards - Liabilities	0	0
Fair Value Measurements Recurring [Member] | Quoted Prices In Active Markets for Identical Items (Level 1) [Member] | Interest Rate Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate swaps	0	0
Fair Value Measurements Recurring [Member] | Quoted Prices In Active Markets for Identical Items (Level 1) [Member] | Interest Rate Cap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate caps	0	0
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign currency forwards - Assets	14,316,000	866,000
Foreign currency forwards - Liabilities	-7,164,000	-488,000
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate swaps	-2,684,000	-9,329,000
Fair Value Measurements Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Cap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate caps	345,000	4,428,000
Fair Value Measurements Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Foreign currency forwards - Assets	0	0
Foreign currency forwards - Liabilities	0	0
Fair Value Measurements Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Swap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate swaps	0	0
Fair Value Measurements Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Cap [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest rate caps	0	0
Fair Value Measurements Nonrecurring [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notes payable, book value	2,100,000,000	2,000,000,000
Notes payable, fair value	$2,100,000,000	$2,000,000,000

Reportable_Segments_Details

Reportable Segments (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	real_estate_investment								segment
									real_estate_investment
Segment Reporting Information [Line Items]
Number of reportable segments									4
Number of real estate investments	40								40
Total Revenue	$115,596	$117,705	$117,840	$105,123	$96,925	$90,081	$75,824	$60,032	$456,264	$322,862	$187,240
Total property revenues in excess of expenses									319,163	220,769	126,201
Total Assets	4,126,594				3,803,219				4,126,594	3,803,219
Domestic office investments [Member]
Segment Reporting Information [Line Items]
Number of real estate investments	11								11
Total Revenue									145,941	114,480	70,943
Total property revenues in excess of expenses									91,932	72,547	44,088
Total Assets	1,227,066				1,273,779				1,227,066	1,273,779
Domestic other investments [Member]
Segment Reporting Information [Line Items]
Number of real estate investments	10								10
Total Revenue									104,753	62,407	36,712
Total property revenues in excess of expenses									67,297	39,413	22,492
Total Assets	1,041,004				789,204				1,041,004	789,204
International office investments [Member]
Segment Reporting Information [Line Items]
Number of real estate investments	10								10
Total Revenue									108,839	68,274	32,123
Total property revenues in excess of expenses									114,586	73,226	27,803
Total Assets	1,237,989				1,176,394				1,237,989	1,176,394
International other investments [Member]
Segment Reporting Information [Line Items]
Number of real estate investments	9								9
Total Revenue									96,731	77,701	47,462
Total property revenues in excess of expenses									45,348	35,583	31,818
Total Assets	557,003				515,788				557,003	515,788
Corporate-level accounts [Member]
Segment Reporting Information [Line Items]
Total Assets	$63,532				$48,054				$63,532	$48,054

Reportable_Segments_Total_Reve

Reportable Segments (Total Revenues and Assets by Geographic Location) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	55.00%	55.00%	57.00%
Revenue [Member] | United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	19.00%	15.00%	20.00%
Revenue [Member] | Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	8.00%	10.00%	6.00%
Revenue [Member] | Poland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	7.00%	9.00%	6.00%
Revenue [Member] | Russia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	5.00%	6.00%	11.00%
Revenue [Member] | France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	3.00%	3.00%	0.00%
Revenue [Member] | Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	3.00%	2.00%	0.00%
Assets [Member] | United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	56.00%	55.00%
Assets [Member] | United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	18.00%	15.00%
Assets [Member] | Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	9.00%	9.00%
Assets [Member] | Poland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	7.00%	9.00%
Assets [Member] | Russia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	2.00%	4.00%
Assets [Member] | France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	4.00%	5.00%
Assets [Member] | Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	4.00%	3.00%

Reportable_Segments_Reconcilia

Reportable Segments (Reconciliation to Consolidated) (Details) (USD $)	3 Months Ended				12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting [Abstract]
Total property revenues in excess of expenses					$319,163	$220,769	$126,201
Depreciation and amortization					-193,870	-140,187	-84,747
Acquisition related expenses					-29,278	-42,747	-12,633
Asset management and acquisition fees					-53,069	-60,490	-22,006
General and administrative expenses					-6,782	-5,344	-3,590
Gain (loss) on derivatives					7,322	9,909	1,398
Gain (loss) on sale of real estate investments	64,003	0	0	0	64,003	0	0
Foreign currency gains (losses)					-13,074	-6,458	672
Interest expense					-78,273	-60,968	-37,915
Interest income					506	454	227
Benefit (provision) for income taxes					-5,806	-701	-1,147
Net income (loss)					$10,842	($85,763)	($33,540)

Supplemental_Cash_Flow_Disclos2

Supplemental Cash Flow Disclosures (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Supplemental Cash Flow Information [Abstract]
Cash paid for interest	$66,592	$53,942	$32,784
Cash paid for income taxes	4,161	4,742	4,461
Other Significant Noncash Transactions [Line Items]
Distributions declared and unpaid	17,558	14,143	8,777
Other receivables	0	5,441	4,889
Non-cash net liabilities acquired	2,737	12,867	4,745
In-kind contribution from noncontrolling interest	0	0	3,000
Accrued additions to investment property	2,373	8,538	5,524
Distributions reinvested [Member]
Other Significant Noncash Transactions [Line Items]
Noncash transaction, consideration received	90,198	60,585	36,981
Shares tendered for redemption [Member]
Other Significant Noncash Transactions [Line Items]
Noncash transaction, consideration received	$5,505	$2,287	$927

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (50 South Sixth [Member], Dorsey and Whitney LLP [Member], USD $)	Dec. 31, 2014	Nov. 30, 2013
In Millions, unless otherwise specified
50 South Sixth [Member] | Dorsey and Whitney LLP [Member]
Other Commitments [Line Items]
Tenant improvement, maximum exposure		$20.80
Tenant improvement, unfunded amount	$13.30

Quarterly_Financial_Data_Unaud2

Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Data [Abstract]
Revenues	$115,596	$117,705	$117,840	$105,123	$96,925	$90,081	$75,824	$60,032	$456,264	$322,862	$187,240
Gain (loss) on sale of real estate investments	64,003	0	0	0					64,003	0	0
Net (income) loss attributable to noncontrolling interests	-2,756	-964	-1,097	-947	-1,599	-616	-437	-521	-5,764	-3,173	-939
Net income (loss) attributable to common stockholders	$48,833	$3,214	($10,580)	($36,389)	($10,446)	($13,442)	($32,556)	($32,492)	$5,078	($88,936)	($34,479)
Income (loss) per common share, basic and diluted (in dollars per share)	$0.18	$0.01	($0.04)	($0.15)	($0.05)	($0.07)	($0.19)	($0.20)	$0.02	($0.48)	($0.30)

Subsequent_Events_Details

Subsequent Events (Details) (Subsequent Event [Member])	Jan. 31, 2015	Jan. 31, 2015	Mar. 30, 2015	Mar. 30, 2015	Jan. 31, 2015	Jan. 31, 2015	Jan. 31, 2015	Jan. 31, 2015	Mar. 30, 2015
	Forchheim Phase II [Member]	Forchheim Phase II [Member]	The Summit [Member]	The Summit III [Member]	The Harder German Logistics Portfolio [Member]	The Harder German Logistics Portfolio [Member]	The Harder German Logistics Portfolio (Karlsdorf and Nuremberg) [Member]	The Harder German Logistics Portfolio Completion Date 12/31/15 [Member]	Not Designated as Hedging Instrument [Member]
	USD ($)	EUR (€)	USD ($)	sqft	USD ($)	EUR (€)	sqft	sqft	Interest Rate Caps Effective March 27, 2015 [Member]
	sqft		sqft		sqft				USD ($)
Subsequent Event [Line Items]
Area of real estate property (sqft)	240,000	240,000	524,130	43,413	1,300,000	1,300,000	600,000	683,002
Business acquisition percentage leased (percent)	100.00%	100.00%	94.70%		100.00%	100.00%
Contract purchase price, real estate	$29,500,000	€ 24,700,000	$320,000,000		$137,500,000	€ 116,700,000
Foreign currency exchange rate, translation (usd per euro)	1.19				1.18
Notional Amount									$500,000,000

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts (Details) (Allowance for Doubtful Accounts [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation allowances and reserves, beginning balance	$2,011	$330	$0
Valuation allowances and reserves, Charged to Costs and Expenses	841	2,105	1,110
Valuation allowances and reserves, Deductions	-980	-424	-780
Valuation allowances and reserves, ending balance	$1,872	$2,011	$330

Schedule_III_Real_Estate_and_A1

Schedule III - Real Estate and Accumulated Depreciation (Property Table) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,603,904,000
Initial Cost, Land	628,226,000
Initial Cost, Buildings and Improvements	2,622,060,000
Initial Cost, Total	3,250,286,000
Costs Capitalized Subsequent to Acquisition	-146,766,000
Gross Amount at Which Carried at 12/31/2014, Land	602,344,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	2,501,176,000
Gross Amount at Which Carried at 12/31/2014, Total	3,103,520,000	2,894,264,000	1,529,675,000	969,421,000
Accumulated Depreciation	-138,821,000	-94,414,000	-47,197,000	-18,991,000
Aggregate cost, federal income tax basis	3,200,000,000
Furniture and Fixtures [Member]
Real Estate and Accumulated Depreciation [Line Items]
Estimated useful life	10 years
Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Estimated useful life	40 years
Minimum [Member] | Electrical and Mechanical Installations [Member]
Real Estate and Accumulated Depreciation [Line Items]
Estimated useful life	15 years
Maximum [Member] | Electrical and Mechanical Installations [Member]
Real Estate and Accumulated Depreciation [Line Items]
Estimated useful life	20 years
17600 Gillette [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	2,800,000
Initial Cost, Buildings and Improvements	7,250,000
Initial Cost, Total	10,050,000
Costs Capitalized Subsequent to Acquisition	51,000
Gross Amount at Which Carried at 12/31/2014, Land	2,800,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	7,301,000
Gross Amount at Which Carried at 12/31/2014, Total	10,101,000
Accumulated Depreciation	-831,000
Brindleyplace Project [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	188,034,000
Initial Cost, Buildings and Improvements	207,592,000
Initial Cost, Total	207,592,000
Costs Capitalized Subsequent to Acquisition	23,491,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	231,083,000
Gross Amount at Which Carried at 12/31/2014, Total	231,083,000
Accumulated Depreciation	-24,963,000
Hock Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	75,148,000
Initial Cost, Land	1,220,000
Initial Cost, Buildings and Improvements	69,704,000
Initial Cost, Total	70,924,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	1,220,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	69,704,000
Gross Amount at Which Carried at 12/31/2014, Total	70,924,000
Accumulated Depreciation	-7,519,000
Southpark [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	18,227,000
Initial Cost, Land	3,920,000
Initial Cost, Buildings and Improvements	20,507,000
Initial Cost, Total	24,427,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	3,920,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	20,507,000
Gross Amount at Which Carried at 12/31/2014, Total	24,427,000
Accumulated Depreciation	-2,155,000
50 South Sixth [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	95,000,000
Initial Cost, Land	1,390,000
Initial Cost, Buildings and Improvements	134,262,000
Initial Cost, Total	135,652,000
Costs Capitalized Subsequent to Acquisition	469,000
Gross Amount at Which Carried at 12/31/2014, Land	1,390,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	134,731,000
Gross Amount at Which Carried at 12/31/2014, Total	136,121,000
Accumulated Depreciation	-14,025,000
F M Logistic [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	5,320,000
Initial Cost, Buildings and Improvements	51,588,000
Initial Cost, Total	56,908,000
Costs Capitalized Subsequent to Acquisition	-28,732,000
Gross Amount at Which Carried at 12/31/2014, Land	2,634,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	25,542,000
Gross Amount at Which Carried at 12/31/2014, Total	28,176,000
Accumulated Depreciation	-2,351,000
Gogolevsky 11 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35,100,000
Initial Cost, Buildings and Improvements	85,126,000
Initial Cost, Total	85,126,000
Costs Capitalized Subsequent to Acquisition	-41,268,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	43,858,000
Gross Amount at Which Carried at 12/31/2014, Total	43,858,000
Accumulated Depreciation	-4,165,000
250 Royall [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	8,910,000
Initial Cost, Buildings and Improvements	22,860,000
Initial Cost, Total	31,770,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	8,910,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	22,860,000
Gross Amount at Which Carried at 12/31/2014, Total	31,770,000
Accumulated Depreciation	-1,892,000
Campus At Marlborough [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost, Land	23,790,000
Initial Cost, Buildings and Improvements	54,230,000
Initial Cost, Total	78,020,000
Costs Capitalized Subsequent to Acquisition	1,271,000
Gross Amount at Which Carried at 12/31/2014, Land	23,310,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	55,981,000
Gross Amount at Which Carried at 12/31/2014, Total	79,291,000
Accumulated Depreciation	-4,387,000
Komo Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	19,560,000
Initial Cost, Buildings and Improvements	111,182,000
Initial Cost, Total	130,742,000
Costs Capitalized Subsequent to Acquisition	4,507,000
Gross Amount at Which Carried at 12/31/2014, Land	19,560,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	115,689,000
Gross Amount at Which Carried at 12/31/2014, Total	135,249,000
Accumulated Depreciation	-8,706,000
9320 Excelsior [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	2,730,000
Initial Cost, Buildings and Improvements	51,110,000
Initial Cost, Total	53,840,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	2,730,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	51,110,000
Gross Amount at Which Carried at 12/31/2014, Total	53,840,000
Accumulated Depreciation	-3,851,000
WaterWall Place JV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	44,092,000
Initial Cost, Land	8,229,000
Initial Cost, Buildings and Improvements	54,825,000
Initial Cost, Total	63,054,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	8,229,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	54,825,000
Gross Amount at Which Carried at 12/31/2014, Total	63,054,000
Accumulated Depreciation	-1,267,000
Aviva Coral Gables, JV (formerly Ponce And Bird JV) [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	56,031,000
Initial Cost, Land	12,112,000
Initial Cost, Buildings and Improvements	48,892,000
Initial Cost, Total	61,004,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	12,112,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	48,892,000
Gross Amount at Which Carried at 12/31/2014, Total	61,004,000
Accumulated Depreciation	-102,000
Poland Logistics Portfolio [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	76,797,000
Initial Cost, Land	25,893,000
Initial Cost, Buildings and Improvements	97,627,000
Initial Cost, Total	123,520,000
Costs Capitalized Subsequent to Acquisition	-9,100,000
Gross Amount at Which Carried at 12/31/2014, Land	23,048,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	91,372,000
Gross Amount at Which Carried at 12/31/2014, Total	114,420,000
Accumulated Depreciation	-8,224,000
100 Brookes Street [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	35,254,000
Initial Cost, Land	8,600,000
Initial Cost, Buildings and Improvements	41,404,000
Initial Cost, Total	50,004,000
Costs Capitalized Subsequent to Acquisition	-9,826,000
Gross Amount at Which Carried at 12/31/2014, Land	6,900,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	33,278,000
Gross Amount at Which Carried at 12/31/2014, Total	40,178,000
Accumulated Depreciation	-2,051,000
Minneapolis Retail Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	65,500,000
Initial Cost, Land	30,792,000
Initial Cost, Buildings and Improvements	78,711,000
Initial Cost, Total	109,503,000
Costs Capitalized Subsequent to Acquisition	1,318,000
Gross Amount at Which Carried at 12/31/2014, Land	30,792,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	80,029,000
Gross Amount at Which Carried at 12/31/2014, Total	110,821,000
Accumulated Depreciation	-4,766,000
550 Terry Francois [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	41,270,000
Initial Cost, Buildings and Improvements	109,760,000
Initial Cost, Total	151,030,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	41,270,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	109,760,000
Gross Amount at Which Carried at 12/31/2014, Total	151,030,000
Accumulated Depreciation	-6,427,000
Mercedes Benz Bank [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	41,346,000
Initial Cost, Land	11,953,000
Initial Cost, Buildings and Improvements	47,643,000
Initial Cost, Total	59,596,000
Costs Capitalized Subsequent to Acquisition	-5,994,000
Gross Amount at Which Carried at 12/31/2014, Land	10,733,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	42,869,000
Gross Amount at Which Carried at 12/31/2014, Total	53,602,000
Accumulated Depreciation	-2,036,000
One Westferry Circus [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	74,554,000
Initial Cost, Buildings and Improvements	48,874,000
Initial Cost, Total	48,874,000
Costs Capitalized Subsequent to Acquisition	1,881,000
Gross Amount at Which Carried at 12/31/2014, Land	0
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	50,755,000
Gross Amount at Which Carried at 12/31/2014, Total	50,755,000
Accumulated Depreciation	-2,338,000
465 Victoria [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	43,396,000
Initial Cost, Land	26,566,000
Initial Cost, Buildings and Improvements	48,788,000
Initial Cost, Total	75,354,000
Costs Capitalized Subsequent to Acquisition	-15,316,000
Gross Amount at Which Carried at 12/31/2014, Land	21,155,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	38,883,000
Gross Amount at Which Carried at 12/31/2014, Total	60,038,000
Accumulated Depreciation	-1,791,000
Riverside Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	45,888,000
Initial Cost, Buildings and Improvements	125,014,000
Initial Cost, Total	170,902,000
Costs Capitalized Subsequent to Acquisition	214,000
Gross Amount at Which Carried at 12/31/2014, Land	45,888,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	125,228,000
Gross Amount at Which Carried at 12/31/2014, Total	171,116,000
Accumulated Depreciation	-5,484,000
New City [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	95,934,000
Initial Cost, Buildings and Improvements	115,208,000
Initial Cost, Total	115,208,000
Costs Capitalized Subsequent to Acquisition	-8,532,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	106,676,000
Gross Amount at Which Carried at 12/31/2014, Total	106,676,000
Accumulated Depreciation	-2,372,000
825 Ann [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	66,091,000
Initial Cost, Land	20,669,000
Initial Cost, Buildings and Improvements	83,802,000
Initial Cost, Total	104,471,000
Costs Capitalized Subsequent to Acquisition	-21,847,000
Gross Amount at Which Carried at 12/31/2014, Land	16,328,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	66,296,000
Gross Amount at Which Carried at 12/31/2014, Total	82,624,000
Accumulated Depreciation	-2,760,000
The Campus at Playa Vista [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	115,000,000
Initial Cost, Land	41,160,000
Initial Cost, Buildings and Improvements	125,567,000
Initial Cost, Total	166,727,000
Costs Capitalized Subsequent to Acquisition	6,000
Gross Amount at Which Carried at 12/31/2014, Land	41,160,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	125,573,000
Gross Amount at Which Carried at 12/31/2014, Total	166,733,000
Accumulated Depreciation	-5,214,000
Perspective Defense [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	85,085,000
Initial Cost, Land	29,039,000
Initial Cost, Buildings and Improvements	109,704,000
Initial Cost, Total	138,743,000
Costs Capitalized Subsequent to Acquisition	-10,107,000
Gross Amount at Which Carried at 12/31/2014, Land	26,923,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	101,713,000
Gross Amount at Which Carried at 12/31/2014, Total	128,636,000
Accumulated Depreciation	-3,978,000
The Markets at Town Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	52,130,000
Initial Cost, Buildings and Improvements	76,067,000
Initial Cost, Total	128,197,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	52,130,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	76,067,000
Gross Amount at Which Carried at 12/31/2014, Total	128,197,000
Accumulated Depreciation	-2,746,000
The Avenue Murfreesboro [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	54,940,000
Initial Cost, Buildings and Improvements	71,990,000
Initial Cost, Total	126,930,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	54,940,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	71,990,000
Gross Amount at Which Carried at 12/31/2014, Total	126,930,000
Accumulated Depreciation	-2,500,000
2300 Main [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	3,570,000
Initial Cost, Buildings and Improvements	27,940,000
Initial Cost, Total	31,510,000
Costs Capitalized Subsequent to Acquisition	0
Gross Amount at Which Carried at 12/31/2014, Land	3,570,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	27,940,000
Gross Amount at Which Carried at 12/31/2014, Total	31,510,000
Accumulated Depreciation	-938,000
Fiege Mega Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	28,373,000
Initial Cost, Land	10,107,000
Initial Cost, Buildings and Improvements	36,005,000
Initial Cost, Total	46,112,000
Costs Capitalized Subsequent to Acquisition	-5,112,000
Gross Amount at Which Carried at 12/31/2014, Land	8,983,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	32,017,000
Gross Amount at Which Carried at 12/31/2014, Total	41,000,000
Accumulated Depreciation	-966,000
55 M Street [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	72,000,000
Initial Cost, Land	24,810,000
Initial Cost, Buildings and Improvements	85,277,000
Initial Cost, Total	110,087,000
Costs Capitalized Subsequent to Acquisition	289,000
Gross Amount at Which Carried at 12/31/2014, Land	24,810,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	85,566,000
Gross Amount at Which Carried at 12/31/2014, Total	110,376,000
Accumulated Depreciation	-2,271,000
The Rim [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	65,890,000
Initial Cost, Buildings and Improvements	90,900,000
Initial Cost, Total	156,790,000
Costs Capitalized Subsequent to Acquisition	90,000
Gross Amount at Which Carried at 12/31/2014, Land	65,890,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	90,990,000
Gross Amount at Which Carried at 12/31/2014, Total	156,880,000
Accumulated Depreciation	-2,013,000
25 Cabot Square [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	192,209,000
Initial Cost, Buildings and Improvements	165,121,000
Initial Cost, Total	165,121,000
Costs Capitalized Subsequent to Acquisition	-9,894,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	155,227,000
Gross Amount at Which Carried at 12/31/2014, Total	155,227,000
Accumulated Depreciation	-2,966,000
Simon Hegele Logistics [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	26,106,000
Initial Cost, Land	8,481,000
Initial Cost, Buildings and Improvements	34,663,000
Initial Cost, Total	43,144,000
Costs Capitalized Subsequent to Acquisition	-4,683,000
Gross Amount at Which Carried at 12/31/2014, Land	7,560,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	30,901,000
Gross Amount at Which Carried at 12/31/2014, Total	38,461,000
Accumulated Depreciation	-449,000
818 Bourke [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	74,627,000
Initial Cost, Land	36,487,000
Initial Cost, Buildings and Improvements	82,867,000
Initial Cost, Total	119,354,000
Costs Capitalized Subsequent to Acquisition	-9,942,000
Gross Amount at Which Carried at 12/31/2014, Land	33,449,000
Gross Amount at Which Carried at 12/31/2014, Buildings and Improvements	75,963,000
Gross Amount at Which Carried at 12/31/2014, Total	109,412,000
Accumulated Depreciation	-317,000

Schedule_III_Real_Estate_and_A2

Schedule III - Real Estate and Accumulated Depreciation (Rollforward) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance, beginning of period	$2,894,264	$1,529,675	$969,421
Acquisitions	484,499	1,322,485	509,335
Other additions	45,879	61,259	28,149
Disposals of fully-depreciated assets	-23
Costs of real estate sold	-139,539
Effect of changes in foreign currency exchange rates	-181,560	-19,155	22,770
Balance, end of period	3,103,520	2,894,264	1,529,675
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance, beginning of period	-94,414	-47,197	-18,991
Depreciation	-64,846	-46,973	-27,361
Effect of changes in foreign currency exchange rates	9,573	-244	-845
Disposals of fully-depreciated assets	23
Retirement or sales of assets	10,843
Balance, end of period	($138,821)	($94,414)	($47,197)

Schedule_IV_Mortgage_Loans_on_1

Schedule IV - Mortgage Loans on Real Estate (By Loan) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Mortgage Loans on Real Estate [Line Items]
Aggregate cost, federal income tax basis	$75,000,000
Construction Loans [Member]
Mortgage Loans on Real Estate [Line Items]
Prior Liens	0
Face Amount of Mortgages	103,244,000
Carrying Amount of Mortgages	75,040,000
Construction Loans [Member] | Multi-family [Member] | @ 1377 Development [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Atlanta, GA
Interest Rate (percent)	10.00%
Prior Liens	0
Face Amount of Mortgages	3,962,000
Carrying Amount of Mortgages	3,962,000
Construction Loans [Member] | Multi-family [Member] | Falls of Kirkwood [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Houston, TX
Interest Rate (percent)	8.00%
Prior Liens	0
Face Amount of Mortgages	6,300,000
Carrying Amount of Mortgages	6,222,000
Amortization period	30 years
Construction Loans [Member] | Multi-family [Member] | Falls of Town Park Apartment [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Houston, TX
Interest Rate (percent)	7.75%
Prior Liens	0
Face Amount of Mortgages	5,327,000
Carrying Amount of Mortgages	5,227,000
Amortization period	25 years
Construction Loans [Member] | Multi-family [Member] | Manor Palms [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Austin, TX
Interest Rate (percent)	7.00%
Prior Liens	0
Face Amount of Mortgages	4,109,000
Carrying Amount of Mortgages	3,979,000
Amortization period	25 years
Construction Loans [Member] | Multi-family [Member] | Dymaxion Apartments [Member]
Mortgage Loans on Real Estate [Line Items]
Location	San Antonio, TX
Interest Rate (percent)	7.60%
Prior Liens	0
Face Amount of Mortgages	8,500,000
Carrying Amount of Mortgages	7,684,000
Amortization period	25 years
Construction Loans [Member] | Multi-family [Member] | Marbach Park Apartments [Member]
Mortgage Loans on Real Estate [Line Items]
Location	San Antonio, TX
Interest Rate (percent)	7.60%
Prior Liens	0
Face Amount of Mortgages	9,500,000
Carrying Amount of Mortgages	7,676,000
Amortization period	25 years
Construction Loans [Member] | Office [Member] | Finesilver [Member]
Mortgage Loans on Real Estate [Line Items]
Location	San Antonio, TX
Interest Rate (percent)	6.45%
Prior Liens	0
Face Amount of Mortgages	7,233,000
Carrying Amount of Mortgages	5,165,000
Amortization period	25 years
Construction Loans [Member] | Industrial [Member] | Motor Circle [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Dallas, TX
Interest Rate (percent)	8.00%
Prior Liens	0
Face Amount of Mortgages	3,175,000
Carrying Amount of Mortgages	2,423,000
Amortization period	25 years
Construction Loans [Member] | Shopping Centers [Member] | Houston Retail Portfolio [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Houston, TX
Interest Rate (percent)	7.60%
Prior Liens	0
Face Amount of Mortgages	11,804,000
Carrying Amount of Mortgages	11,457,000
Amortization period	25 years
Construction Loans [Member] | Shopping Centers [Member] | Precinct Villages [Member]
Mortgage Loans on Real Estate [Line Items]
Location	North Richland Hills, TX
Interest Rate (percent)	8.50%
Prior Liens	0
Face Amount of Mortgages	2,595,000
Carrying Amount of Mortgages	1,811,000
Amortization period	25 years
Construction Loans [Member] | Shopping Centers [Member] | Randalls [Member]
Mortgage Loans on Real Estate [Line Items]
Location	Pasadena and Friendswood, TX
Interest Rate (percent)	6.25%
Prior Liens	0
Face Amount of Mortgages	10,939,000
Carrying Amount of Mortgages	8,110,000
Amortization period	25 years
Amortization period, interest-only payments	18 months
Construction Loans [Member] | Shopping Centers [Member] | The Rim [Member]
Mortgage Loans on Real Estate [Line Items]
Location	San Antonio, TX
Interest Rate (percent)	8.50%
Prior Liens	0
Face Amount of Mortgages	29,800,000
Carrying Amount of Mortgages	$11,324,000

Schedule_IV_Mortgage_Loans_on_2

Schedule IV - Mortgage Loans on Real Estate (Rollforward) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance at beginning of period	$43,591	$35,124	$4,919
New loans	45,680	18,633	30,003
Additional advances on existing loans	4,736	1,389	2,554
Interest income added to principal	525	842	755
Collection of principal	-19,492	-12,397	-3,107
Balance at close of period	$75,040	$43,591	$35,124