Schedule IV (Consolidated) - Mortgage Loans on Real Estate (Details) (USD $)	12 Months Ended
Dec. 31, 2014
Mortgage Loans on Real Estate [Line Items]
Carrying Amount of Mortgages	$ 22,123,000
Seller financing \| Seller financing, maturing June 2015
Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.25%
Prior Liens	0
Carrying Amount of Mortgages	19,600,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Notes receivable, annual principal payments	1,000,000.0
Seller financing \| Seller financing, maturing August 2015
Mortgage Loans on Real Estate [Line Items]
Interest Rate	4.00%
Prior Liens	0
Carrying Amount of Mortgages	1,945,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Seller financing \| Seller financing, maturing February 2015
Mortgage Loans on Real Estate [Line Items]
Interest Rate, Minimum	4.00%
Interest Rate, Maximum	6.00%
Prior Liens	0
Carrying Amount of Mortgages	66,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	0
Various other seller financing \| Various other seller financing, maturing October 2016 through December 2016
Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	0
Carrying Amount of Mortgages	512,000
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0

Notes, Loans and Financing Receivable, Annual Principal Payments

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The carrying amount of the outstanding balance due under the mortgage loan.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Topic 948

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The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

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The highest stated interest rate within the mortgage loans included in the loan grouping.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

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The lowest stated interest rate within the mortgage loans included in the loan grouping.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

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Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 10

-Section S99

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of prior lien on the real estate that secures the mortgage loan.

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