Repurchase Agreements (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Repurchase Agreements [Abstract]

Schedule of Repurchase Agreements

($ in thousands)
		OVERNIGHT		BETWEEN 2		BETWEEN 31			GREATER
		(1 DAY OR		AND		AND			THAN
		LESS)		30 DAYS		90 DAYS			90 DAYS		TOTAL
December 31, 2014
Fair market value of securities pledged, including
	accrued interest receivable	$	-	$	984,823	$	534,238	$	3,844	$	1,522,905
Repurchase agreement liabilities associated with
	these securities	$	-	$	929,831	$	502,947	$	3,873	$	1,436,651
Net weighted average borrowing rate			-		0.36%		0.37%		0.38%		0.36%
December 31, 2013
Fair market value of securities pledged, including
	accrued interest receivable	$	-	$	326,348	$	10,650	$	-	$	336,998
Repurchase agreement liabilities associated with
	these securities	$	-	$	308,402	$	10,155	$	-	$	318,557
Net weighted average borrowing rate			-		0.39%		0.37%		-		0.39%

Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets

(in thousands)
			% of	Weighted
			Stockholders'	Average
		Amount	Equity	Maturity
Repurchase Agreement Counterparties		at Risk	at Risk	(in Days)
December 31, 2013
Citigroup Global Markets, Inc.	$	5,487	12.3%	11