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Investments (Tables)
3 Months Ended
Mar. 31, 2014
Investments [Abstract]  
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
The following table presents a summary of investment securities:
 
Amortized
Cost
 
Unrealized
 
Fair
Value
Gains
 
Losses
 
(In thousands)
As of March 31, 2014
 
 
 
 
 
 
 
Available for sale securities at fair value:
 
 
 
 
 
 
 
U.S. government and agencies
$
12,175

 
$
3

 
$
(149
)
 
$
12,029

Government-sponsored entities
234,325

 
308

 
(846
)
 
233,787

Municipal bonds
229,103

 
1,975

 
(1,265
)
 
229,813

Mortgage-backed securities (1)
212,615

 
2,284

 
(3,894
)
 
211,005

Other
13,606

 
297

 
(6
)
 
13,897

Total
$
701,824

 
$
4,867

 
$
(6,160
)
 
$
700,531

 
 
 
 
 
 
 
 
Held to maturity securities at amortized cost:
 
 
 
 
 
 
 
Mortgage-backed securities (1)
$
127,938

 
$
145

 
$
(364
)
 
$
127,719

Total
$
127,938

 
$
145

 
$
(364
)
 
$
127,719

 
 
 
 
 
 
 
 
As of December 31, 2013
 
 
 
 
 
 
 
Available for sale securities at fair value:
 
 
 
 
 
 
 
U.S. government and agencies
$
2,300

 
$
15

 
$
(27
)
 
$
2,288

Government-sponsored entities
228,670

 
301

 
(1,031
)
 
227,940

Municipal bonds
218,900

 
1,431

 
(1,898
)
 
218,433

Mortgage-backed securities (1)
229,609

 
2,513

 
(4,678
)
 
227,444

Other
15,353

 
275

 
(4
)
 
15,624

Total
$
694,832

 
$
4,535

 
$
(7,638
)
 
$
691,729

 
 
 
 
 
 
 
 
Held to maturity securities at amortized cost:
 
 
 
 
 
 
 
Mortgage-backed securities (1)
$
112,014

 
$
15

 
$
(1,112
)
 
$
110,917

Total
$
112,014

 
$
15

 
$
(1,112
)
 
$
110,917

___________________
(1)
 All mortgage-backed securities are guaranteed by U.S. government agencies or Government-sponsored entities.
Investments Classified by Contractual Maturity Date [Table Text Block]
The following table presents the maturities of investment securities available for sale, based on contractual maturity, as of March 31, 2014. Certain securities are callable before their final maturity. Additionally, certain securities (such as mortgage-backed securities) are shown within the table below based on their final (contractual) maturity, but, due to prepayments and amortization, are expected to have shorter lives.
 
Available for Sale Securities
Amortized
cost
 
Fair
value
(In thousands)
Within one year
$
57,847

 
$
58,251

After one, but within five years
299,251

 
299,602

After five, but within ten years
124,607

 
124,508

Greater than ten years
220,119

 
218,170

Total
$
701,824

 
$
700,531



The following table presents the maturities of investment securities held to maturity, based on contractual maturity, as of March 31, 2014.
 
Held to Maturity Securities
Amortized
cost
 
Fair
value
(In thousands)
Within one year
$

 
$

After one, but within five years

 

After five, but within ten years

 

Greater than ten years
127,938

 
127,719

Total
$
127,938

 
$
127,719

Realized Gain (Loss) on Investments [Table Text Block]
The following table presents the proceeds from sales, gross realized gains and gross realized losses for securities available for sale that were sold during the following periods:
 
Three months ended March 31,
2014
 
2013
(In thousands)
Proceeds from sales
$
5,328

 
$
1,451

Realized gains
1

 
10

Realized losses

 

Schedule of Unrealized Loss on Investments [Table Text Block]
The following table presents information regarding securities as of March 31, 2014 having temporary impairment, due to the fair values having declined below the amortized cost of the individual securities, and the time period that the investments have been temporarily impaired.
 
Less than 12 months
 
12 months or longer
 
Total
 
Fair
value
 
Unrealized
losses
 
Fair
value
 
Unrealized
losses
 
Fair
value
 
Unrealized
losses
 
# of
securities
Available for sale securities
(In thousands)
U.S. government and agencies
$
10,375

 
$
(90
)
 
$
634

 
$
(59
)
 
$
11,009

 
$
(149
)
 
2

Government-sponsored entities
145,826

 
(846
)
 

 

 
145,826

 
(846
)
 
15

Municipal bonds
71,930

 
(1,133
)
 
4,372

 
(132
)
 
76,302

 
(1,265
)
 
40

Mortgage-backed securities
75,879

 
(1,102
)
 
57,553

 
(2,792
)
 
133,432

 
(3,894
)
 
33

Other
21

 
(3
)
 
7

 
(3
)
 
28

 
(6
)
 
4

Total
$
304,031

 
$
(3,174
)
 
$
62,566

 
$
(2,986
)
 
$
366,597

 
$
(6,160
)
 
94

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Held to maturity securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Mortgage-backed securities (1)
$
77,631

 
$
(364
)
 
$

 
$

 
$
77,631

 
$
(364
)
 
8

Total
$
77,631

 
$
(364
)
 
$

 
$

 
$
77,631

 
$
(364
)
 
8