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Accumulated Other Comprehensive Income (Tables)
 6 Months Ended
Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule Of Accumulated Other Comprehensive Income
The table below shows the activity and accumulated balances for components of other comprehensive income. The largest component is the unrealized holding gains and losses on available for sale securities. Unrealized gains and losses on debt securities for which an other-than-temporary impairment (OTTI) has been recorded in current earnings are shown separately below. The other component is the amortization from other comprehensive income of losses associated with pension benefits, which occurs as the losses are included in current net periodic pension cost.
 
Unrealized Gains (Losses) on Securities (1)
Pension Loss (2)
Total Accumulated Other Comprehensive Income
(In thousands)
OTTI
Other
Balance January 1, 2017
$
2,975

$
27,328

$
(19,328
)
$
10,975

Other comprehensive income (loss) before reclassifications
(44
)
53,072

—

53,028

Amounts reclassified from accumulated other comprehensive income
320

(4,293
)
1,098

(2,875
)
Current period other comprehensive income, before tax
276

48,779

1,098

50,153

Income tax expense
(105
)
(18,536
)
(417
)
(19,058
)
Current period other comprehensive income, net of tax
171

30,243

681

31,095

Transfer of unrealized gain on securities for which impairment was not previously recognized
24

(24
)
—

—

Balance June 30, 2017
$
3,170

$
57,547

$
(18,647
)
$
42,070

Balance January 1, 2016
$
3,316

$
49,750

$
(20,596
)
$
32,470

Other comprehensive income (loss) before reclassifications
(911
)
163,925

—

163,014

Amounts reclassified from accumulated other comprehensive income
270

—

1,158

1,428

Current period other comprehensive income (loss), before tax
(641
)
163,925

1,158

164,442

Income tax (expense) benefit
243

(62,291
)
(440
)
(62,488
)
Current period other comprehensive income (loss), net of tax
(398
)
101,634

718

101,954

Balance June 30, 2016
$
2,918

$
151,384

$
(19,878
)
$
134,424