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Business Segment Reporting - Core Earnings - Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | $ 43,933 | $ 39,731 | $ 87,162 | $ 76,802 |
Less: reconciling adjustments(1)(2)(3) | 0 | 0 | 0 | 0 |
Net Effective Spread | 0 | 0 | 0 | 0 |
Guaranty Fee Income | 3,481 | 3,472 | 6,980 | 7,316 |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | 2,899 | 272 | (361) | 3,224 |
Non-interest income | 6,380 | 3,744 | 6,619 | 10,540 |
(Provision for)/release of loan losses | (424) | (327) | 7 | (964) |
Provision for Other Credit Losses | (158) | (139) | (179) | 54 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | (12,763) | (11,251) | (24,384) | (21,993) |
Non-interest expense | (12,921) | (11,390) | (24,563) | (21,939) |
Income Tax Expense (Benefit) | (7,332) | (11,124) | (13,770) | (21,910) |
Net income | 29,636 | 20,634 | 55,455 | 42,529 |
Net income | 36,968 | 31,758 | 69,225 | 64,439 |
Preferred Stock Dividends, Income Statement Impact | (3,296) | (3,296) | (6,591) | (6,591) |
Less: Net loss attributable to non-controlling interest | 0 | 150 | 0 | 165 |
Net Income (Loss) Available to Common Stockholders, Basic | 26,340 | 17,488 | 48,864 | 36,103 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 18,626,771 | 17,267,385 | 18,626,771 | 17,267,385 | $ 17,792,274
On and Off Balance Sheet Program Assets, At Principal Balance | 19,524,837 | 18,258,858 | 19,524,837 | 18,258,858 |
Farm & Ranch [Member] |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | 15,889 | 13,338 | 30,830 | 26,092 |
Less: reconciling adjustments(1)(2)(3) | (2,542) | (2,180) | (4,943) | (4,423) |
Net Effective Spread | 13,347 | 11,158 | 25,887 | 21,669 |
Guaranty Fee Income | 4,488 | 4,191 | 8,867 | 8,486 |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | 341 | 994 | 899 | 1,188 |
Non-interest income | 4,829 | 5,185 | 9,766 | 9,674 |
(Provision for)/release of loan losses | (424) | (327) | 7 | (964) |
Provision for Other Credit Losses | (158) | (139) | (179) | 54 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | (4,954) | (4,446) | (9,474) | (8,511) |
Non-interest expense | (5,112) | (4,585) | (9,653) | (8,457) |
Segment core earnings before income taxes | 12,640 | 11,431 | 26,007 | 21,922 |
Income Tax Expense (Benefit) | (2,654) | (4,001) | (5,461) | (7,673) |
Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends | 9,986 | 7,430 | 20,546 | 14,249 |
Preferred Stock Dividends, Income Statement Impact | 0 | 0 | 0 | 0 |
Less: Net loss attributable to non-controlling interest |  | 0 |  | 0 |
Segment core earnings | 9,986 | 7,430 | 20,546 | 14,249 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 4,428,172 | 3,958,344 | 4,428,172 | 3,958,344 |
On and Off Balance Sheet Program Assets, At Principal Balance | 7,045,397 | 6,426,518 | 7,045,397 | 6,426,518 |
USDA Guarantees [Member] |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | 5,072 | 5,176 | 10,142 | 10,459 |
Less: reconciling adjustments(1)(2)(3) | (674) | (625) | (1,344) | (1,347) |
Net Effective Spread | 4,398 | 4,551 | 8,798 | 9,112 |
Guaranty Fee Income | 190 | 99 | 356 | 173 |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | 8 | 11 | 13 | 25 |
Non-interest income | 198 | 110 | 369 | 198 |
(Provision for)/release of loan losses | 0 | 0 | 0 | 0 |
Provision for Other Credit Losses | 0 | 0 | 0 | 0 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | (1,312) | (1,166) | (2,505) | (2,253) |
Non-interest expense | (1,312) | (1,166) | (2,505) | (2,253) |
Segment core earnings before income taxes | 3,284 | 3,495 | 6,662 | 7,057 |
Income Tax Expense (Benefit) | (690) | (1,223) | (1,399) | (2,470) |
Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends | 2,594 | 2,272 | 5,263 | 4,587 |
Preferred Stock Dividends, Income Statement Impact | 0 | 0 | 0 | 0 |
Less: Net loss attributable to non-controlling interest |  | 0 |  | 0 |
Segment core earnings | 2,594 | 2,272 | 5,263 | 4,587 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 2,177,345 | 2,141,569 | 2,177,345 | 2,141,569 |
On and Off Balance Sheet Program Assets, At Principal Balance | 2,418,115 | 2,237,013 | 2,418,115 | 2,237,013 |
Rural Utilities [Member] |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | 3,313 | 3,003 | 5,850 | 5,951 |
Less: reconciling adjustments(1)(2)(3) | (390) | (334) | 23 | (714) |
Net Effective Spread | 2,923 | 2,669 | 5,873 | 5,237 |
Guaranty Fee Income | 402 | 487 | 851 | 979 |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | 5 | 5 | 10 | 10 |
Non-interest income | 407 | 492 | 861 | 989 |
(Provision for)/release of loan losses | 0 | 0 | 0 | 0 |
Provision for Other Credit Losses | 0 | 0 | 0 | 0 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | (739) | (643) | (1,412) | (1,230) |
Non-interest expense | (739) | (643) | (1,412) | (1,230) |
Segment core earnings before income taxes | 2,591 | 2,518 | 5,322 | 4,996 |
Income Tax Expense (Benefit) | (544) | (881) | (1,118) | (1,748) |
Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends | 2,047 | 1,637 | 4,204 | 3,248 |
Preferred Stock Dividends, Income Statement Impact | 0 | 0 | 0 | 0 |
Less: Net loss attributable to non-controlling interest |  | 0 |  | 0 |
Segment core earnings | 2,047 | 1,637 | 4,204 | 3,248 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 995,068 | 1,038,383 | 995,068 | 1,038,383 |
On and Off Balance Sheet Program Assets, At Principal Balance | 1,669,440 | 1,883,909 | 1,669,440 | 1,883,909 |
Institutional Credit [Member] |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | 18,805 | 15,431 | 36,637 | 28,933 |
Less: reconciling adjustments(1)(2)(3) | (3,585) | (964) | (6,593) | (1,851) |
Net Effective Spread | 15,220 | 14,467 | 30,044 | 27,082 |
Guaranty Fee Income | 91 | 165 | 180 | 620 |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | 0 | 0 | 0 | 0 |
Non-interest income | 91 | 165 | 180 | 620 |
(Provision for)/release of loan losses | 0 | 0 | 0 | 0 |
Provision for Other Credit Losses | 0 | 0 | 0 | 0 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | (2,030) | (1,622) | (3,876) | (3,143) |
Non-interest expense | (2,030) | (1,622) | (3,876) | (3,143) |
Segment core earnings before income taxes | 13,281 | 13,010 | 26,348 | 24,559 |
Income Tax Expense (Benefit) | (2,789) | (4,554) | (5,533) | (8,596) |
Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends | 10,492 | 8,456 | 20,815 | 15,963 |
Preferred Stock Dividends, Income Statement Impact | 0 | 0 | 0 | 0 |
Less: Net loss attributable to non-controlling interest |  | 0 |  | 0 |
Segment core earnings | 10,492 | 8,456 | 20,815 | 15,963 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 8,144,763 | 7,425,774 | 8,144,763 | 7,425,774 |
On and Off Balance Sheet Program Assets, At Principal Balance | 8,391,885 | 7,711,418 | 8,391,885 | 7,711,418 |
Corporate Segment [Member] |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | 854 | 2,783 | 3,703 | 5,367 |
Less: reconciling adjustments(1)(2)(3) | (580) | (294) | (1,042) | (607) |
Net Effective Spread | 274 | 2,489 | 2,661 | 4,760 |
Guaranty Fee Income | 0 | 0 | 0 | 0 |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | (209) | (146) | (349) | 121 |
Non-interest income | (209) | (146) | (349) | 121 |
(Provision for)/release of loan losses | 0 | 0 | 0 | 0 |
Provision for Other Credit Losses | 0 | 0 | 0 | 0 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | (3,728) | (3,374) | (7,117) | (6,856) |
Non-interest expense | (3,728) | (3,374) | (7,117) | (6,856) |
Segment core earnings before income taxes | (3,663) | (1,031) | (4,805) | (1,975) |
Income Tax Expense (Benefit) | 1,200 | 352 | 1,775 | 1,336 |
Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends | (2,463) | (679) | (3,030) | (639) |
Preferred Stock Dividends, Income Statement Impact | (3,296) | (3,296) | (6,591) | (6,591) |
Less: Net loss attributable to non-controlling interest |  | 150 |  | 165 |
Segment core earnings | (5,759) | (3,825) | (9,621) | (7,065) |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 2,881,423 | 2,703,315 | 2,881,423 | 2,703,315 |
Segment Reconciling Items [Member] |  |  |  |  |
Segment Reporting Information, Profit (Loss) [Abstract] |  |  |  |  |
Net interest income | 0 | 0 | 0 | 0 |
Less: reconciling adjustments(1)(2)(3) | 7,771 | 4,397 | 13,899 | 8,942 |
Net Effective Spread | 7,771 | 4,397 | 13,899 | 8,942 |
Guaranty Fee Income | (1,690) | (1,470) | (3,274) | (2,942) |
Other Non-Interest Income (Expense), Excluding Guarantee and Commitment Fees | 2,754 | (592) | (934) | 1,880 |
Non-interest income | 1,064 | (2,062) | (4,208) | (1,062) |
(Provision for)/release of loan losses | 0 | 0 | 0 | 0 |
Provision for Other Credit Losses | 0 | 0 | 0 | 0 |
Noninterest Expense, Excluding Loan, Lease and Other Losses | 0 | 0 | 0 | 0 |
Non-interest expense | 0 | 0 | 0 | 0 |
Segment core earnings before income taxes | 8,835 | 2,335 | 9,691 | 7,880 |
Income Tax Expense (Benefit) | (1,855) | (817) | (2,034) | (2,759) |
Segment core earnings before preferred stock dividends and attibution of income to non-controlling interest - preferred stock dividends | 6,980 | 1,518 | 7,657 | 5,121 |
Preferred Stock Dividends, Income Statement Impact | 0 | 0 | 0 | 0 |
Less: Net loss attributable to non-controlling interest |  | 0 |  | 0 |
Segment core earnings | 6,980 | 1,518 | 7,657 | 5,121 |
Segment Reporting Information, Additional Information [Abstract] |  |  |  |  |
Total Assets | 0 | 0 | 0 | 0 |
On and Off Balance Sheet Program Assets, At Principal Balance | $ 0 | $ 0 | $ 0 | $ 0 |

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