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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

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-Subparagraph (SX 210.3-04)

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-Name Accounting Standards Codification

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-Section 45

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4616395-111683

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- Definition

The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

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-Name Regulation S-X (SX)

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-Name Accounting Standards Codification

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-Publisher SEC

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-Number 210

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-Name Accounting Standards Codification

-Topic 235

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-Subparagraph (SX 210.4-08.(d)(1))

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The excess of (1) fair value of the consideration transferred to the holders of the preferred stock over (2) the carrying amount of the preferred stock in the registrant's balance sheet, during the accounting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section S99

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=27010884&loc=d3e42851-122695

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Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

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Equity - Non-controlling interest (Details) (USD $)	3 Months Ended		0 Months Ended	3 Months Ended
Equity - Non-controlling interest (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014	Jan. 25, 2010	Jun. 30, 2014
Class of Stock [Line Items]
Preferred Stock Redemption Premium	$ 8,147,000us-gaap_PreferredStockRedemptionPremium	$ 0us-gaap_PreferredStockRedemptionPremium
Farmer Mac II LLC [Member]
Class of Stock [Line Items]
Sale of Stock, Consideration Received on Transaction			250,000,000
Farmer Mac II LLC [Member] \| Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Liquidation Preference Per Share	$ 1,000
Farmer Mac II LLC [Member] \| Private Placement [Member] \| Preferred Stock [Member]
Class of Stock [Line Items]
Sale of Stock, Number of Shares Issued in Transaction			250,000
Non-controlling Interest - Preferred Stock [Member]
Class of Stock [Line Items]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests	$ 235,853,000	$ 0		$ 6,000,000