Schedule IV Movement in Mortgage Loans on Real Estate (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014
Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance - December 31, 2013	$ 26,279us-gaap_MortgageLoansOnRealEstate
Additions during the year:
Acquired in Cole Merger	72,326
Investments in mortgage notes	2,952
Deductions during the year:
Principal payments received on loan investments	(74,109)
Amortization of unearned discounts and premiums	(642)
Balance - December 31, 2014	$ 26,806us-gaap_MortgageLoansOnRealEstate

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- Definition

Total carrying amount of mortgage loans 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

-Paragraph 6

-Subparagraph (SX 210.5-04.(c) Schedule IV)

-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 29

-Article 12

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph c

-Subparagraph Schedule IV

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-29.6)

-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

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- Definition

The amount of premium on mortgage loans on real estate amortized during the reporting period.

+ References

+ Details

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- Definition

The amount of principal collected on mortgage loans on real estate during the reporting period.

+ References

+ Details

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- Definition

Total amount of new mortgage loans on real estate during the reporting period.

+ References

+ Details

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- Definition

Total amount of additions to mortgage loans other than new loans during the reporting period.

+ References

+ Details

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- Details

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