CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Net income	$ 34,173,000		$ 1,976,000		$ 56,761,000		$ 30,446,000
Unrealized holding gains on securities (1)	(48,190,000)	[1]	10,827,000	[1]	(26,378,000)	[1]	10,863,000	[1]
Gains on sale of available-for-sale investment securities (3)	(1,996,000)	[2]	0	[2]	(1,997,000)	[2]	(18,000)	[2]
Comprehensive income	(19,465,000)		12,566,000		21,513,000		40,789,000
Less: Comprehensive income attributable to noncontrolling interest - preferred stock dividends	(5,547,000)		(5,547,000)		(11,094,000)		(11,094,000)
Comprehensive income attributable to Farmer Mac	(25,012,000)		7,019,000		10,419,000		29,695,000
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	25,900,000		5,800,000		14,200,000		5,800,000
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	1,100,000				1,100,000		10,000
Accumulated Other Comprehensive Income (Loss) [Member]
Other comprehensive income/(loss)	(53,638,000)		10,590,000		(35,248,000)		10,343,000
financial derivatives and hedging activities [Member]
Gains on financial derivatives and hedging activities (2)	(3,211,000)	[3]	0	[3]	(6,418,000)	[3]	0	[3]
Tax effects of reclassification adjustment for gains included in net income, tax	1,700,000				3,500,000
Other Income [Member]
Other income (4)	(241,000)	[4]	(237,000)	[4]	(455,000)	[4]	(502,000)	[4]
Tax effects of reclassification adjustment for gains included in net income, tax	$ 100,000		$ 100,000		$ 200,000		$ 300,000

[1] Presented net of income tax benefit of $25.9 million and expense of $5.8 million for the three months ended June 30, 2013 and 2012, respectively

[2] Represents realized gains on sales of available-for-sale investment securities. Presented net of income tax benefit of $1.1 million for the three months ended June 30, 2013

[3] Presented net of income tax benefit of $1.7 million and $3.5 million for the three months and six months ended June 30, 2013, respectively.

[4] Represents amortization of deferred gains related to certain available-for-sale USDA Guaranteed Securities and Farmer Mac Guaranteed Securities. Presented net of income tax benefit of $0.1 million for the three months ended June 30, 2013 and 2012, and income tax benefit of $0.2 million and $0.3 million for the six months ended June 30, 2013 and 2012, respectively.