Condensed Consolidated Statement of Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income	$ 11,005,829	$ 8,221,582	$ 13,537,517	$ 10,745,170
Reversal of net unrealized gain on sale of securities			(236,439)
Unrealized gain (loss) on bond purchase commitments			11,584,459	(4,896,414)
Comprehensive income (loss)	80,836,804	(13,305,479)	97,057,293	(12,415,351)
Comprehensive income (loss) allocated to noncontrolling interest	(101)	311	(113)	(580)
Partnership comprehensive income (loss)	80,836,905	(13,305,790)	97,057,406	(12,414,771)
Accumulated Other Comprehensive Income (Loss) [Member]
Net income	11,005,829	8,221,582	13,537,517	10,745,170
Reversal of net unrealized gain on sale of securities			(236,439)
Unrealized gain (loss) on securities	59,834,329	(17,206,872)	72,171,756	(18,264,107)
Commitments [Member] \| Accumulated Other Comprehensive Income (Loss) [Member]
Unrealized gain (loss) on bond purchase commitments	$ 9,996,646	$ (4,320,189)	$ 11,584,459	$ (4,896,414)

Reversal of net unrealized gain on sale of securities.

No definition available.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Amount of unrealized gain (loss) recognized in the income statement on unsold other securities.

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