CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 53,428,814	$ 93,048,490	$ 21,298,737
Unrealized gain (loss) on securities available-for-sale, net	70,605	(335,157)	382,130
Net unrealized gain on securities transferred to available-for-sale from held-to-maturity			431,476
Reclassification of unrealized gain on securities available-for-sale realized into earnings		(431,476)	(100,000)
Unrealized loss on derivative financial instruments, net	(1,018,587)	(1,318,318)	(520,195)
Reclassification of net realized loss on derivatives designated as cash flow hedges into loss on termination of swaps	4,626,192
Reclassification of net realized loss on derivatives designated as cash flow hedges into earnings	6,149,090	12,653,954	14,131,036
Comprehensive income	63,256,114	103,617,493	35,623,184
Less:
Preferred stock dividends	7,553,720	7,256,255	4,506,583
Comprehensive income attributable to noncontrolling interest			124,199
Comprehensive income attributable to common stockholders	$ 55,702,394	$ 96,361,238	$ 30,992,402