Fair Value (Details 4) (Level 3, USD $)	9 Months Ended
Sep. 30, 2014
Multifamily Portfolio \| Direct capitalization analysis and discounted cash flows
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Impaired loans	$ 2,734,447
Discount rate (as a percent)	8.00%
Revenue growth rate (as a percent)	2.00%
Multifamily Portfolio \| Direct capitalization analysis and discounted cash flows \| Minimum
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Capitalization rate (as a percent)	6.50%
Multifamily Portfolio \| Direct capitalization analysis and discounted cash flows \| Maximum
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Capitalization rate (as a percent)	8.00%
Multifamily Portfolio \| Direct capitalization analysis and discounted cash flows \| Weighted average
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Capitalization rate (as a percent)	7.07%
Office \| Discounted cash flows
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Impaired loans	13,747,931
Office \| Discounted cash flows \| Minimum
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Discount rate (as a percent)	8.50%
Capitalization rate (as a percent)	7.00%
Revenue growth rate (as a percent)	2.50%
Office \| Discounted cash flows \| Maximum
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Discount rate (as a percent)	12.00%
Capitalization rate (as a percent)	10.00%
Revenue growth rate (as a percent)	3.00%
Office \| Discounted cash flows \| Weighted average
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Discount rate (as a percent)	9.71%
Capitalization rate (as a percent)	8.21%
Revenue growth rate (as a percent)	2.97%
Land \| Discounted cash flows
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Impaired loans	65,157,368
Discount rate (as a percent)	15.00%
Capitalization rate (as a percent)	7.25%
Revenue growth rate (as a percent)	3.00%
Hotel Portfolio \| Discounted cash flows
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
Impaired loans	30,549,959
Discount rate (as a percent)	9.25%
Capitalization rate (as a percent)	7.25%
Revenue growth rate (as a percent)	3.00%
Commercial mortgage-backed security (CMBS) \| Discounted cash flows
Quantitative information about Level 3 Fair Value Measurements on a recurring and non-recurring basis
CMBS	$ 2,000,000
Discount rate (as a percent)	14.16%

Represents the fair value of securities collateralized by commercial real estate mortgage loans.

No definition available.

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- Details

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- Definition

Ratio of the net operating income produced by an asset and its capital cost (original prices paid to buy the asset), used as an input to measure fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

+ Details

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- Definition

Percentage of assumed long-term growth in revenues, used as an input to measure fair value.

+ References

+ Details

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- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953550-111524

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