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Accumulated Other Comprehensive Income
 9 Months Ended
Sep. 30, 2012
Accumulated Other Comprehensive Income [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income
The following table presents changes in other comprehensive income for the three and nine months ended September 30, 2012 and 2011: 
 
Before-Tax Amount
 
Tax Effect
 
Net of Tax Amount
 
(in thousands)
Three months ended September 30, 2012
 
 
 
 
 
Unrealized gain (loss) on securities
$
16,668

 
$
(5,834
)
 
$
10,834

Reclassification adjustment for securities (gains) losses included in net income
(43
)
 
15

 
(28
)
Non-credit related unrealized gain (loss) on other-than-temporarily impaired debt securities
417

 
(146
)
 
271

Unrealized gain on derivative financial instruments
52

 
(18
)
 
34

Amortization (accretion) of net unrecognized pension and postretirement items
329

 
(115
)
 
214

Total Other Comprehensive Income (Loss)
$
17,423

 
$
(6,098
)
 
$
11,325

Three months ended September 30, 2011
 
 
 
 
 
Unrealized gain (loss) on securities
$
(2,886
)
 
$
1,010

 
$
(1,876
)
Reclassification adjustment for securities (gains) losses included in net income
443

 
(155
)
 
288

Non-credit related unrealized gain (loss) on other-than-temporarily impaired debt securities
(834
)
 
292

 
(542
)
Unrealized gain on derivative financial instruments
52

 
(18
)
 
34

Amortization (accretion) of net unrecognized pension and postretirement items
(20
)
 
7

 
(13
)
Total Other Comprehensive Income (Loss)
$
(3,245
)
 
$
1,136

 
$
(2,109
)
Nine months ended September 30, 2012
 
 
 
 
 
Unrealized gain (loss) on securities
$
7,252

 
$
(2,538
)
 
$
4,714

Reclassification adjustment for securities (gains) losses included in net income
(2,831
)
 
991

 
(1,840
)
Non-credit related unrealized gain (loss) on other-than-temporarily impaired debt securities
360

 
(126
)
 
234

Unrealized gain on derivative financial instruments
157

 
(55
)
 
102

Amortization (accretion) of net unrecognized pension and postretirement items
988

 
(346
)
 
642

Total Other Comprehensive Income (Loss)
$
5,926

 
$
(2,074
)
 
$
3,852

Nine months ended September 30, 2011
 
 
 
 
 
Unrealized gain (loss) on securities
$
23,297

 
$
(8,154
)
 
$
15,143

Reclassification adjustment for securities (gains) losses included in net income
(1,506
)
 
527

 
(979
)
Non-credit related unrealized gain (loss) on other-than-temporarily impaired debt securities
288

 
(101
)
 
187

Unrealized gain on derivative financial instruments
157

 
(55
)
 
102

Amortization (accretion) of net unrecognized pension and postretirement items
(57
)
 
20

 
(37
)
Total Other Comprehensive Income (Loss)
$
22,179

 
$
(7,763
)
 
$
14,416


The following table presents changes in each component of accumulated other comprehensive income, net of tax, for the three and nine months ended September 30, 2012 and 2011: 
 
Unrealized Gains on Investment Securities Not Other-Than-Temporarily Impaired
 
Unrealized Non-Credit Losses on Other-Than-Temporarily Impaired Debt Securities
 
Unrecognized Pension and Postretirement Plan Items
 
Unrealized Effective Portions of Losses on Forward-Starting Interest Rate Swaps
 
Total
 
(in thousands)
Three months ended September 30, 2012
 
 
 
 
 
 
 
 
 
Balance at June 30, 2012
$
19,122

 
$
(1,048
)
 
$
(14,706
)
 
$
(2,886
)
 
$
482

Current-period other comprehensive income
10,793

 
284

 
214

 
34

 
11,325

Balance at September 30, 2012
$
29,915

 
$
(764
)
 
$
(14,492
)
 
$
(2,852
)
 
$
11,807

Three months ended September 30, 2011

 

 

 

 

Balance at June 30, 2011
$
37,227

 
$
(747
)
 
$
(4,438
)
 
$
(3,022
)
 
$
29,020

Current-period other comprehensive income (loss)
(1,813
)
 
(317
)
 
(13
)
 
34

 
(2,109
)
Balance at September 30, 2011
$
35,414

 
$
(1,064
)
 
$
(4,451
)
 
$
(2,988
)
 
$
26,911

 
 
 
 
 
 
 
 
 
 
Nine months ended September 30, 2012
 
 
 
 
 
 
 
 
 
Balance at December 31, 2011
$
27,054

 
$
(1,011
)
 
$
(15,134
)
 
$
(2,954
)
 
$
7,955

Current-period other comprehensive income
2,861

 
247

 
642

 
102

 
3,852

Balance at September 30, 2012
$
29,915

 
$
(764
)
 
$
(14,492
)
 
$
(2,852
)
 
$
11,807

Nine months ended September 30, 2011
 
 
 
 
 
 
 
 
 
Balance at December 31, 2010
$
22,354

 
$
(2,355
)
 
$
(4,414
)
 
$
(3,090
)
 
$
12,495

Current-period other comprehensive income (loss)
13,060

 
1,291

 
(37
)
 
102

 
14,416

Balance at September 30, 2011
$
35,414

 
$
(1,064
)
 
$
(4,451
)
 
$
(2,988
)
 
$
26,911