Fair Value (Narrative) (Details) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Fair Value [Line Items]
Real estate-related notes receivables, carrying value	$ 10,014,000	$ 23,535,000
Preferred equity investment, carrying value	127,147,000	0
Notes payable, carrying value	549,825,000	490,909,000
Credit facility, carrying value	208,000,000	75,000,000
Contingent consideration obligations, fair value and carrying value	6,870,000	6,570,000
Contingent consideration obligations, maximum payout	6,870,000
Contingent consideration obligations, minimum payout	0
Fixed Rate [Member]
Fair Value [Line Items]
Notes payable, carrying value	132,762,000	134,271,000
Variable Rate, Subject To Interest Rate Swap [Member]
Fair Value [Line Items]
Notes payable, carrying value	240,046,000	206,162,000
Credit facility, carrying value	55,000,000	55,000,000
Variable Rate [Member]
Fair Value [Line Items]
Notes payable, carrying value	177,017,000	150,476,000
Credit facility, carrying value	153,000,000	20,000,000
Significant Other Observable Inputs (Level 2) [Member] \| Estimated Fair Value [Member] \| Fixed Rate [Member]
Fair Value [Line Items]
Notes payable, fair value disclosure	133,468,000	134,837,000
Significant Other Observable Inputs (Level 2) [Member] \| Estimated Fair Value [Member] \| Variable Rate, Subject To Interest Rate Swap [Member]
Fair Value [Line Items]
Notes payable, fair value disclosure	242,051,000	208,889,000
Credit facility, fair value disclosure	51,114,000	50,505,000
Significant Unobservable Inputs (Level 3) [Member] \| Estimated Fair Value [Member]
Fair Value [Line Items]
Real estate-related notes receivables, fair value disclosure	$ 10,014,000	$ 23,421,000

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)(3)

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For contingent consideration arrangements and indemnification assets recognized in connection with a business combination, this element represents an estimate of the low-end of the potential range (undiscounted) of the consideration which may be paid.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ References

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-Publisher FASB

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-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.12)

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No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

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-Number 210

-Section 02

-Paragraph 19, 20, 22

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Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Glossary Loan

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 210

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Fair value portion of notes payable.

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