Borrowings (Tables)

3 Months Ended

Mar. 31, 2016

Schedule Of Repurchase Agreement Counterparty [Table Text Block]

At March 31, 2016 and December 31, 2015, securities sold under agreements to repurchase (classified by counterparty), excluding accrued interest in the amount of $1.7 million and $2.2 million, respectively, were as follows:

	March 31,				December 31,
	2016				2015
			Fair Value of				Fair Value of
	Borrowing		Underlying		Borrowing		Underlying
	Balance		Collateral		Balance		Collateral
	(In thousands)
JP Morgan Chase Bank NA		232,500		252,402		262,500		283,483
Credit Suisse Securities (USA) LLC		402,000		439,538		670,000		737,887
Total	$	634,500	$	691,940	$	932,500	$	1,021,370

Schedule of Repurchase Agreement by Maturity [Table text Block]

The following table shows a summary of the Company’s repurchase agreements and their terms, excluding accrued interest in the amount of $1.7 million, at March 31, 2016:

			Weighted-
	Borrowing		Average		Maturity
Year of Maturity	Balance		Coupon	Settlement Date	Date
	(In thousands)
2016		170,000	1.500%	12/6/2012	12/8/2016

2017		232,000	4.780%	3/2/2007	3/2/2017

2018		232,500	1.420%	12/10/2012	4/29/2018
	$	634,500	2.670%

Schedule of Repurchase Agreements [Table]

	March 31, 2016
					Market Value of Underlying Collateral

			Weighted		FNMA and					US Treasury
	Repurchase		Average		FHLMC		GNMA			Treasury
	Liability		Rate		Certificates		Certificates			Notes	Total
	(Dollars in thousands)
Over 90 days		634,500		2.67%		665,206		1,721		25,013		691,940
Total	$	634,500		2.67%	$	665,206	$	1,721	$	25,013	$	691,940

	December 31, 2015
					Market Value of Underlying Collateral

			Weighted		FNMA and					US Treasury
	Repurchase		Average		FHLMC		GNMA			Treasury
	Liability		Rate		Certificates		Certificates			Notes	Total
	(Dollars in thousands)
Less than 90 days		30,000		0.70%		31,961		-		-		31,961
Over 90 days		902,500		3.18%		974,698		2,131		12,580		989,409
Total	$	932,500		3.10%	$	1,006,659	$	2,131	$	12,580	$	1,021,370

Federal Home Loan Bank Advances Maturities Summary [Table Text Block]

The following table shows a summary of these advances and their terms, excluding accrued interest in the amount of $348 thousand, at March 31, 2016:

			Weighted-
		Borrowing	Average		Maturity
Year of Maturity		Balance	Coupon	Settlement Date	Date
		(In thousands)
2016	$	25,000	0.59%	3/4/2016	4/4/2016
		50,000	0.60%	3/10/2016	4/11/2016
		100,000	0.58%	3/16/2016	4/18/2016
		25,000	0.58%	3/24/2016	4/25/2016
		25,000	0.52%	3/30/2016	4/29/2016
		37,638	0.60%	3/1/2016	4/1/2016
		262,638

2017		4,209	1.24%	4/3/2012	4/3/2017

2018		30,000	2.19%	1/16/2013	1/16/2018
		25,000	2.18%	1/16/2013	1/16/2018
		55,000

2020		9,785	2.59%	7/19/2013	7/20/2020
	$	331,632	0.92%

Redemtion Funds [Table Text Block]

	Redemption fund
	(In thousands)
Redemption fund at March 31, 2016	$	64,488
2016		2,512
	$	67,000