Business Acquisition, Co-investment Partner

No definition available.

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- Definition

Business Acquisition Location, City and State

+ References

No definition available.

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- Definition

Equity Method Investment, Summarized Financial Information, Gain Loss on Sale of Real Estate

+ References

No definition available.

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- Definition

Number of Real Estate Properties Sold During the period.

+ References

No definition available.

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- Definition

With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

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- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e845-128460

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Acquisition Date
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- Definition

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

+ References

No definition available.

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- Definition

Name of the acquired entity.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

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- Definition

Amount of liabilities assumed at the acquisition date.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 3
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- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
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- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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- Definition

The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

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- Definition

Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period.

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Investments in Real Estate Partnerships - Schedule of Acquisitions by Real Estate Partnerships (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) property	Dec. 31, 2015 USD ($) property	Dec. 31, 2014 USD ($) property
Business Acquisition [Line Items]
Proceeds from sale of real estate investments	$ 137,479,000	$ 108,822,000	$ 118,787,000
Gain on sale of real estate	70,907,000	2,766,000	28,856,000
Equity in income of investments in real estate partnerships (note 4)	56,518,000	22,508,000	31,270,000
Payments to Acquire Businesses, Gross	387,528,000	86,657,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0	42,799,000
Investments in real estate partnerships (note 4)	296,699,000	306,206,000
Columbia Regency Partners II, LLC [Member]
Business Acquisition [Line Items]
Equity in income of investments in real estate partnerships (note 4)	$ 3,240,000	$ 755,000
Equity Method Investment, Ownership Percentage	0.00%	0.00%
Investments in real estate partnerships (note 4)	$ 14,750,000	$ 8,496,000
GRI - Regency, LLC [Member]
Business Acquisition [Line Items]
Equity in income of investments in real estate partnerships (note 4)	$ 29,791,000	$ 18,148,000
Equity Method Investment, Ownership Percentage	0.00%	0.00%
Investments in real estate partnerships (note 4)	$ 201,240,000	$ 220,099,000
Other Investments in Real Estate Partnerships [Member]
Business Acquisition [Line Items]
Equity in income of investments in real estate partnerships (note 4)	$ 16,352,000	$ 1,857,000
Equity Method Investment, Ownership Percentage	0.00%	0.00%
Investments in real estate partnerships (note 4)	$ 24,453,000	$ 32,371,000
RegCal, LLC [Member]
Business Acquisition [Line Items]
Equity in income of investments in real estate partnerships (note 4)	$ 1,080,000	$ 576,000
Equity Method Investment, Ownership Percentage	0.00%	0.00%
Investments in real estate partnerships (note 4)	$ 21,516,000	$ 17,967,000
Unconsolidated Properties [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	92,550,000	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	$ 35,076,000
Unconsolidated Properties [Member] \| Applewood Village [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Mar. 24, 2016
Business Acquisition, Name of Acquired Entity	Applewood Village Shops
Business Acquisition Location, City and State	Denver, CO
Business Acquisition, Description of Acquired Entity	Operating (1)
Business Acquisition, Co-investment Partner	GRIR
Equity Method Investment, Ownership Percentage	40.00%
Payments to Acquire Businesses, Gross	$ 200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	$ 0
Unconsolidated Properties [Member] \| Garden City [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Dec. 20, 2016
Business Acquisition, Name of Acquired Entity	Plaza Venezia
Business Acquisition Location, City and State	Orlando, FL
Business Acquisition, Description of Acquired Entity	Operating
Business Acquisition, Co-investment Partner	Columbia II
Equity Method Investment, Ownership Percentage	20.00%
Payments to Acquire Businesses, Gross	$ 92,350,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	35,076,000
Partnership Interest [Member]
Business Acquisition [Line Items]
Proceeds from sale of real estate investments	135,269,000	108,822,000	118,787,000
Equity in income of investments in real estate partnerships (note 4)	56,518,000	22,508,000	31,270,000
Mortgage loans assumed for the acquisition of real estate	0	42,799,000	$ 103,187,000
Investments in real estate partnerships (note 4)	$ 296,699,000	$ 306,206,000
Operating Segments [Member]
Business Acquisition [Line Items]
Number of Real Estate Properties Sold \| property	11	5	11
Operating Segments [Member] \| Unconsolidated Properties [Member]
Business Acquisition [Line Items]
Number of Real Estate Properties Sold \| property	10	2	6
Land [Member]
Business Acquisition [Line Items]
Number of Real Estate Properties Sold \| property	16	2	6
Land [Member] \| Unconsolidated Properties [Member]
Business Acquisition [Line Items]
Number of Real Estate Properties Sold \| property	1	0	2
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 27,863,000	$ 64,482,000
Off-Market Favorable Lease [Member] \| Unconsolidated Properties [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	6,899,000
Off-Market Favorable Lease [Member] \| Unconsolidated Properties [Member] \| Applewood Village [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	0
Off-Market Favorable Lease [Member] \| Unconsolidated Properties [Member] \| Garden City [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	6,899,000
Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	19,141,000	$ 14,039,000
Off-Market Lease, Unfavorable [Member] \| Unconsolidated Properties [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	11,548,000
Off-Market Lease, Unfavorable [Member] \| Unconsolidated Properties [Member] \| Applewood Village [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	0
Off-Market Lease, Unfavorable [Member] \| Unconsolidated Properties [Member] \| Garden City [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 11,548,000