CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets:
Cash and cash equivalents	$ 430,812	$ 302,022
Loans:
Loans held for investment, at amortized cost	3,916,127	3,873,755
Loans held for investment in consolidated trusts, at amortized cost	1,443,246	1,399,827
Allowance for loan losses	(6,789)	(6,796)
Total loans, net of allowance	5,352,584	5,266,786
Real estate owned, at lower of cost or fair value	56	139
Financial derivatives, at fair value	8,011	7,093
Interest receivable (includes $17,019 and $17,373, respectively, related to consolidated trusts)	156,194	155,278
Guarantee and commitment fees receivable	39,915	39,895
Deferred tax asset, net	0	2,048
Prepaid expenses and other assets	67,305	29,023
Total Assets	18,626,771	17,792,274
Notes payable:
Due within one year	7,774,301	8,089,826
Due after one year	8,416,896	7,432,790
Total notes payable	16,191,197	15,522,616
Debt securities of consolidated trusts held by third parties	1,449,888	1,404,945
Financial derivatives, at fair value	20,164	26,599
Accrued interest payable (includes $14,559 and $14,631, respectively, related to consolidated trusts)	88,506	75,402
Guarantee and commitment obligation	38,428	38,400
Accounts payable and accrued expenses	67,295	14,096
Deferred Tax Liabilities, Net	2,832	0
Reserve for losses	2,249	2,070
Total Liabilities	17,860,559	17,084,128
Commitments and Contingencies (Note 6)
Common stock:
Additional paid-in capital	117,684	118,979
Accumulated other comprehensive income, net of tax	73,410	51,085
Retained earnings	359,692	322,704
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	766,212	708,146
Total Liabilities and Equity	18,626,771	17,792,274
Series A Preferred Stock [Member]
Preferred stock:
Preferred stock	58,333	58,333
Series B Preferred Stock [Member]
Preferred stock:
Preferred stock	73,044	73,044
Series C Preferred Stock [Member]
Preferred stock:
Preferred stock	73,382	73,382
Common Class A, Voting [Member]
Common stock:
Common Stock	1,031	1,031
Common Class B, Voting [Member]
Common stock:
Common Stock	500	500
Common Class C, Non-Voting [Member]
Common stock:
Common Stock	9,136	9,088
Investment Securities [Member]
Assets:
Available-for-sale, at fair value	2,324,598	2,215,405
Held-to-maturity, at amortized cost	45,032	45,032
Marketable Securities	2,369,630	2,260,437
Farmer Mac Guaranteed Securities:
Assets:
Available-for-sale, at fair value	5,985,806	5,471,914
Held-to-maturity, at amortized cost	2,093,092	2,126,274
Marketable Securities	8,078,898	7,598,188
USDA Securities [Member]
Assets:
Held-to-maturity, at amortized cost	2,112,618	2,117,850
Trading, at fair value	10,748	13,515
Marketable Securities	$ 2,123,366	$ 2,131,365