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Accumulated Other Comprehensive Income (Loss)
 12 Months Ended
Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Note 12.  Accumulated Other Comprehensive Income (Loss)
 
Changes in accumulated other comprehensive income (loss) by component, including amounts reclassified out of accumulated other comprehensive income (loss) and the related line item in the Statements of Operations where net income is presented, are as follows for the year ended December 31:
(in thousands)
 
 
 
 
2015
2014
2013
Investment securities:
 
 
 
 
Accumulated other comprehensive income, beginning of the year
 
$
6,807

$
5,984

$
13,325

Other comprehensive (loss) income before reclassifications, net of tax benefit (expense) of $2,678, $(633), and $3,852, respectively
 
(4,973
)
1,175

(7,153
)
Realized investment gains, net of tax benefit of $172, $226 and $236, respectively
 
(320
)
(420
)
(440
)
Impairment losses, net of tax expense of $(545), $(37), and $(136), respectively
 
1,013

68

252

Other comprehensive (loss) income, net of tax
 
(4,280
)
823

(7,341
)
Accumulated other comprehensive income, end of the year
 
$
2,527

$
6,807

$
5,984

 
 
 
 
 
Pension and other postretirement plans:
 
 
 
 
Accumulated other comprehensive loss, beginning of the year
 
$
(124,508
)
$
(65,083
)
$
(146,516
)
Other comprehensive income (loss) before reclassifications, net of tax (expense) benefit of $(8,433), $34,378, and $(38,352), respectively
 
15,661

(63,845
)
71,226

Amortization of prior service costs, net of tax expense of $234, $248, and $278, respectively (1)
 
434

461

517

Amortization of net actuarial loss, net of tax expense of $4,858, $2,131, and $5,218, respectively (1)
 
9,022

3,959

9,690

Other comprehensive income (loss), net of tax
 
25,117

(59,425
)
81,433

Accumulated other comprehensive loss, end of the year
 
$
(99,391
)
$
(124,508
)
$
(65,083
)
 
 
 
 
 
Total
 
 
 
 
Accumulated other comprehensive loss, beginning of the year
 
$
(117,701
)
$
(59,099
)
$
(133,191
)
Investment securities
 
(4,280
)
823

(7,341
)
Pension and other postretirement plans
 
25,117

(59,425
)
81,433

Other comprehensive income, net of tax
 
20,837

(58,602
)
74,092

Accumulated other comprehensive loss, end of the year
 
$
(96,864
)
$
(117,701
)
$
(59,099
)


(1)
These components of accumulated other comprehensive income (loss) are included in the computation of net periodic pension cost. See Note 8, "Postretirement Benefits", for additional information.