Borrowings (Tables)

3 Months Ended

Mar. 31, 2016

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
March 31, 2016
Fair market value of securities pledged, including
	accrued interest receivable	$	243,551	$	1,688,958	$	123,539	$	-	$	2,056,048
Repurchase agreement liabilities associated with
	these securities	$	231,384	$	1,591,558	$	116,547	$	-	$	1,939,489
Net weighted average borrowing rate			0.66%		0.69%		0.72%		-		0.69%
December 31, 2015
Fair market value of securities pledged, including
	accrued interest receivable	$	-	$	1,894,491	$	14,801	$	-	$	1,909,292
Repurchase agreement liabilities associated with
	these securities	$	-	$	1,789,338	$	9,475	$	-	$	1,798,813
Net weighted average borrowing rate			-		0.64%		1.19%		-		0.64%