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Debt Obligations, Credit Facilities and Repurchase Agreements (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2017 | Aug. 31, 2017 | Jul. 31, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Sep. 30, 2017 | Sep. 30, 2017 | Jan. 31, 2018 | Oct. 31, 2017 | Apr. 30, 2017 | Feb. 28, 2017 | Dec. 31, 2016
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | $ 562,326,537 |  |  |  |  | $ 562,326,537 | $ 562,326,537 |  |  |  |  | $ 906,636,790
Collateral Carrying Value | $ 713,043,810 |  |  |  |  | $ 713,043,810 | $ 713,043,810 |  |  |  |  | $ 1,041,761,233
Weighted Average Note Rate (as a percent) | 2.99% |  |  |  |  | 2.99% | 2.99% |  |  |  |  | 2.25%
Letter of credit |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 50,000,000 |  |  |  |  | $ 50,000,000 | $ 50,000,000 |  |  |  |  |
Structured Business |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 234,339,350 |  |  |  |  | 234,339,350 | 234,339,350 |  |  |  |  | $ 246,492,668
Collateral Carrying Value | $ 384,766,864 |  |  |  |  | $ 384,766,864 | $ 384,766,864 |  |  |  |  | $ 381,446,074
Weighted Average Note Rate (as a percent) | 3.58% |  |  |  |  | 3.58% | 3.58% |  |  |  |  | 3.02%
Weighted average note rate including certain fees and costs (as a percent) | 4.06% |  |  |  |  | 4.06% | 4.06% |  |  |  |  | 3.42%
Unamortized deferred finance costs | $ 1,600,000 |  |  |  |  | $ 1,600,000 | $ 1,600,000 |  |  |  |  | $ 1,900,000
Leverage on loans and investment portfolio, excluding the $3.0 million master security agreement used to finance leasehold improvements to corporate office (as a percent) | 58.00% |  |  |  |  | 58.00% | 58.00% |  |  |  |  | 64.00%
Structured Business | $150 million repurchase facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | $ 149,157,816 |  |  |  |  | $ 149,157,816 | $ 149,157,816 |  |  |  |  | $ 106,051,080
Collateral Carrying Value | $ 253,150,000 |  |  |  |  | $ 253,150,000 | $ 253,150,000 |  |  |  |  | $ 183,827,574
Weighted Average Note Rate (as a percent) | 3.63% |  |  |  |  | 3.63% | 3.63% |  |  |  |  | 3.12%
Maximum borrowing capacity | $ 150,000,000 |  |  |  |  | $ 150,000,000 | $ 150,000,000 |  | $ 225,000,000 |  |  | $ 150,000,000
Additional borrowing capacity |  |  |  |  |  |  |  |  | $ 75,000,000 |  |  |
Structured Business | $150 million repurchase facility | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.25% |  |  |  |  |
Structured Business | $150 million repurchase facility | Maximum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 3.50% |  |  |  |  |
Structured Business | $100 million repurchase facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 2,407,564 |  |  |  |  | 2,407,564 | $ 2,407,564 |  |  |  |  | 21,598,322
Collateral Carrying Value | $ 6,600,000 |  |  |  |  | $ 6,600,000 | $ 6,600,000 |  |  |  |  | $ 34,850,000
Weighted Average Note Rate (as a percent) | 3.28% |  |  |  |  | 3.28% | 3.28% |  |  |  |  | 2.96%
Maximum borrowing capacity | $ 100,000,000 |  |  | $ 100,000,000 |  | $ 100,000,000 | $ 100,000,000 |  |  |  |  | $ 100,000,000
Decrease in interest rate (as a percent) |  |  |  | (0.15%) |  |  |  |  |  |  |  |
Advance rate (as a percent) |  |  |  | 75.00% |  |  |  |  |  |  |  |
Structured Business | $100 million repurchase facility | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  | 2.00% |  |  | 2.00% |  |  |  |  |
Structured Business | $75 million credit facility - One |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 12,096,267 |  |  |  |  | 12,096,267 | $ 12,096,267 |  |  |  |  | 38,703,886
Collateral Carrying Value | $ 28,088,500 |  |  |  |  | $ 28,088,500 | $ 28,088,500 |  |  |  |  | $ 63,158,500
Weighted Average Note Rate (as a percent) | 3.40% |  |  |  |  | 3.40% | 3.40% |  |  |  |  | 2.94%
Maximum borrowing capacity | $ 75,000,000 |  |  |  |  | $ 75,000,000 | $ 75,000,000 |  |  |  |  | $ 75,000,000
Structured Business | $75 million credit facility - One | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.125% |  |  |  |  |
Structured Business | $75 million credit facility - One | Maximum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.50% |  |  |  |  |
Structured Business | $75 million credit facility - two |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 16,206,619 |  |  |  |  | 16,206,619 | $ 16,206,619 |  |  |  |  | 23,276,773
Collateral Carrying Value | $ 42,300,000 |  |  |  |  | $ 42,300,000 | $ 42,300,000 |  |  |  |  | $ 31,725,000
Weighted Average Note Rate (as a percent) | 3.28% |  |  |  |  | 3.28% | 3.28% |  |  |  |  | 2.81%
Maximum borrowing capacity | $ 75,000,000 |  |  |  |  | $ 75,000,000 | $ 75,000,000 |  |  |  |  | $ 75,000,000
Structured Business | $75 million credit facility - two | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.00% |  |  |  |  |
Structured Business | $50 million credit facility - one |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 25,000,000 |  |  |  |  | 25,000,000 | $ 25,000,000 |  |  |  |  | 46,373,641
Collateral Carrying Value | $ 31,250,000 |  |  |  |  | $ 31,250,000 | $ 31,250,000 |  |  |  |  | $ 58,000,000
Weighted Average Note Rate (as a percent) | 3.28% |  |  |  |  | 3.28% | 3.28% |  |  |  |  | 2.81%
Maximum borrowing capacity | $ 50,000,000 |  |  |  |  | $ 50,000,000 | $ 50,000,000 |  |  |  |  | $ 50,000,000
Structured Business | $50 million credit facility - one | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.00% |  |  |  |  |
Structured Business | $50 million credit facility - two |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 3,563,565 |  |  |  |  | 3,563,565 | $ 3,563,565 |  |  |  |  | 7,956,000
Collateral Carrying Value | $ 4,625,000 |  |  |  |  | $ 4,625,000 | $ 4,625,000 |  |  |  |  | $ 9,885,000
Weighted Average Note Rate (as a percent) | 4.54% |  |  |  |  | 4.54% | 4.54% |  |  |  |  | 4.08%
Maximum borrowing capacity | $ 50,000,000 |  |  |  |  | $ 50,000,000 | $ 50,000,000 |  |  |  |  | $ 50,000,000
Structured Business | $50 million credit facility - two | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.50% |  |  |  |  |
Structured Business | $50 million credit facility - two | Maximum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 3.25% |  |  |  |  |
Structured Business | $25.5 million credit facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 13,909,625 |  |  |  |  | 13,909,625 | $ 13,909,625 |  |  |  |  |
Collateral Carrying Value | $ 18,753,364 |  |  |  |  | $ 18,753,364 | $ 18,753,364 |  |  |  |  |
Weighted Average Note Rate (as a percent) | 3.78% |  |  |  |  | 3.78% | 3.78% |  |  |  |  |
Maximum borrowing capacity | $ 25,500,000 |  |  |  |  | $ 25,500,000 | $ 25,500,000 |  |  |  |  |
Structured Business | $25.5 million credit facility | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) | 2.50% |  |  |  |  |  | 2.50% |  |  |  |  |
Structured Business | $10 million credit facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | $ 10,000,000 |  |  |  |  | $ 10,000,000 | $ 10,000,000 |  |  |  |  |
Weighted Average Note Rate (as a percent) | 3.78% |  |  |  |  | 3.78% | 3.78% |  |  |  |  |
Maximum borrowing capacity | $ 10,000,000 |  |  |  | $ 10,000,000 | $ 10,000,000 | $ 10,000,000 |  |  |  |  | 10,000,000
Structured Business | $10 million credit facility | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  | 2.50% |  | 2.50% |  |  |  |  |
Structured Business | $3 million master security agreement |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | $ 1,997,894 |  |  |  |  | $ 1,997,894 | $ 1,997,894 |  |  |  |  | $ 2,532,966
Weighted Average Note Rate (as a percent) | 3.21% |  |  |  |  | 3.21% | 3.21% |  |  |  |  | 3.21%
Maximum borrowing capacity | $ 3,000,000 |  |  |  |  | $ 3,000,000 | $ 3,000,000 |  |  |  |  | $ 3,000,000
Structured Business | $3 million master security agreement | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 2.96% |  |  |  |  |
Structured Business | $3 million master security agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 3.42% |  |  |  |  |
Agency Business |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 327,987,187 |  |  |  |  | 327,987,187 | $ 327,987,187 |  |  |  |  | 660,144,122
Collateral Carrying Value | $ 328,276,946 |  |  |  |  | $ 328,276,946 | $ 328,276,946 |  |  |  |  | $ 660,315,159
Weighted Average Note Rate (as a percent) | 2.56% |  |  |  |  | 2.56% | 2.56% |  |  |  |  | 1.96%
Unamortized deferred finance costs | $ 300,000 |  |  |  |  | $ 300,000 | $ 300,000 |  |  |  |  | $ 300,000
Commitment amount expires in January 2018 |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |
Agency Business | $100 million repurchase facility |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 1,479,155 |  |  |  |  | 1,479,155 | 1,479,155 |  |  |  |  |
Collateral Carrying Value | $ 1,542,000 |  |  |  |  | $ 1,542,000 | $ 1,542,000 |  |  |  |  |
Weighted Average Note Rate (as a percent) | 2.58% |  |  |  |  | 2.58% | 2.58% |  |  |  |  |
Maximum borrowing capacity |  | $ 100,000,000 |  |  |  |  |  |  |  |  |  |
Agency Business | $100 million repurchase facility | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  | 1.35% |  |  |  |  | 1.35% |  |  |  |  |
Agency Business | $100 million credit facility - two |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | $ 64,881,000 |  |  |  |  | $ 64,881,000 | $ 64,881,000 |  |  |  |  | 39,047,500
Collateral Carrying Value | $ 64,881,000 |  |  |  |  | $ 64,881,000 | $ 64,881,000 |  |  |  |  | $ 39,047,500
Weighted Average Note Rate (as a percent) | 2.53% |  |  |  |  | 2.53% | 2.53% |  |  |  |  | 1.95%
Maximum borrowing capacity | $ 100,000,000 |  |  | $ 100,000,000 |  | $ 100,000,000 | $ 100,000,000 | $ 250,000,000 |  |  |  | $ 100,000,000
Commitment amount expires in January 2018 |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |
Decrease in interest rate (as a percent) |  |  |  | 0.05% |  |  |  |  |  |  |  |
Agency Business | $100 million credit facility - two | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  | 1.30% |  |  | 1.30% |  |  |  |  |
Agency Business | $150 million credit facility - one |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 80,709,289 |  |  |  |  | 80,709,289 | $ 80,709,289 |  |  |  |  | 268,530,211
Collateral Carrying Value | $ 80,786,203 |  |  |  |  | $ 80,786,203 | $ 80,786,203 |  |  |  |  | $ 268,571,797
Weighted Average Note Rate (as a percent) | 2.63% |  |  |  |  | 2.63% | 2.63% |  |  |  |  | 2.05%
Maximum borrowing capacity | $ 150,000,000 | $ 225,000,000 | $ 150,000,000 |  |  | $ 150,000,000 | $ 150,000,000 |  |  | $ 200,000,000 |  | $ 150,000,000
Agency Business | $150 million credit facility - one | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 1.40% |  |  |  |  |
Agency Business | $150 million credit facility - two |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 131,409,000 |  |  |  |  | 131,409,000 | $ 131,409,000 |  |  |  |  | 210,009,449
Collateral Carrying Value | $ 131,559,000 |  |  |  |  | $ 131,559,000 | $ 131,559,000 |  |  |  |  | $ 210,138,900
Weighted Average Note Rate (as a percent) | 2.64% |  |  |  |  | 2.64% | 2.64% |  |  |  |  | 2.05%
Maximum borrowing capacity | $ 150,000,000 |  |  |  |  | $ 150,000,000 | $ 150,000,000 |  |  |  | $ 350,000,000 | $ 150,000,000
Decrease in interest rate (as a percent) |  |  | 0.05% |  |  |  |  |  |  |  |  |
Agency Business | $150 million credit facility - two | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  | 1.35% |  |  |  | 1.35% |  |  |  |  |
Agency Business | $500 million multifamily ASAP agreement |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Debt Carrying Value | 49,508,743 |  |  |  |  | 49,508,743 | $ 49,508,743 |  |  |  |  | 142,556,962
Collateral Carrying Value | $ 49,508,743 |  |  |  |  | $ 49,508,743 | $ 49,508,743 |  |  |  |  | $ 142,556,962
Weighted Average Note Rate (as a percent) | 2.28% |  |  |  |  | 2.28% | 2.28% |  |  |  |  | 1.65%
Maximum borrowing capacity | $ 500,000,000 |  |  |  |  | $ 500,000,000 | $ 500,000,000 |  |  |  |  | $ 400,000,000
Agency Business | $500 million multifamily ASAP agreement | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 1.05% |  |  |  |  |
Agency Business | $500 million multifamily ASAP agreement | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  | 0.35% |  |  |  |  |
Agency Business | $50 million credit facility - September 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | 50,000,000 |  |  |  |  | $ 50,000,000 | $ 50,000,000 |  |  |  |  |
Decrease in interest rate (as a percent) |  |  |  |  |  | 0.125% |  |  |  |  |  |
Credit facility, sublimit to finance healthcare related loans | $ 5,000,000 |  |  |  |  | $ 5,000,000 | $ 5,000,000 |  |  |  |  |
Fixed interest rate (as a percent) | 2.875% |  |  |  |  | 2.875% | 2.875% |  |  |  |  |
Fannie Mae | Agency Business | $50 million credit facility - September 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Outstanding letters of credit | $ 42,000,000 |  |  |  |  | $ 42,000,000 | $ 42,000,000 |  |  |  |  |
Freddie Mac | Agency Business | $50 million credit facility - September 2020 |  |  |  |  |  |  |  |  |  |  |  |
Debt Obligations |  |  |  |  |  |  |  |  |  |  |  |
Outstanding letters of credit | $ 5,000,000 |  |  |  |  | $ 5,000,000 | $ 5,000,000 |  |  |  |  |

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- Definition The balance represents the carrying value of loans and securities held as collateral. + References No definition available. + Details
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- Definition Represents debt instrument commitment amount, under the option of temporarily increasing the amount that could be borrowed. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date, of securities sold under agreements to repurchase and the carrying value, as of the balance sheet date, of the outstanding borrowings under warehouse and revolving lines of credit. + References No definition available. + Details
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