Assets sold under agreements to repurchase (Tables)

12 Months Ended

Dec. 31, 2013

Schedule Of Fed Funds Purchased And Assets Sold Under Agreements To Repurchase Table [Text Block]

(Dollars in thousands)		2013			2012
Assets sold under agreements to repurchase		$	1,659,292		$	2,016,752
Maximum aggregate balance outstanding at any month-end		$	2,269,565		$	2,113,557
Average monthly aggregate balance outstanding		$	1,844,061		$	1,885,207
Weighted average interest rate:
	For the year		1.92	%		2.33	%
	At December 31		2.07	%		1.91	%

Schedule of Repurchase Agreements [Table Text Block]

		2013								2012
					Carrying		Market	Weighted					Carrying		Market	Weighted
		Repurchase			value of		value of	average		Repurchase			value of		value of	average
(Dollars in thousands)			liability		collateral		collateral	interest rate			liability		collateral		collateral	interest rate
Obligations of U.S. government
	sponsored entities
	Within 30 days	$	64,109	$	67,721	$	67,721	0.23	%	$	160,288	$	163,934	$	163,934	0.40	%
	After 30 to 90 days		-		-		-	-			7,312		7,102		7,102	0.60
	After 90 days		156,092		177,031		177,031	4.89			119,120		143,502		143,502	4.88
Total obligations of U.S. government
	sponsored entities		220,201		244,752		244,752	3.53			286,720		314,538		314,538	2.27
Mortgage-backed securities
	Within 30 days		23,998		26,591		26,591	0.46			43,107		47,307		47,307	0.54
	After 30 to 90 days		-		-		-	-			98,887		105,903		105,903	0.60
	After 90 days		240,313		286,166		286,166	3.61			320,780		380,900		380,900	3.75
Total mortgage-backed securities			264,311		312,757		312,757	3.32			462,774		534,110		534,110	2.78
Collateralized mortgage obligations
	Within 30 days		235,306		267,120		267,120	0.39			330,000		365,404		365,404	0.53
	After 30 to 90 days		103,754		114,643		114,643	0.44			69,856		76,516		76,516	0.60
	After 90 days		322,881		370,197		370,197	4.24			287,038		341,687		341,687	4.24
Total collateralized mortgage
	obligations		661,941		751,960		751,960	2.28			686,894		783,607		783,607	2.09
Total		$	1,146,453	$	1,309,469	$	1,309,469	2.76	%	$	1,436,388	$	1,632,255	$	1,632,255	2.35	%