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Accumulated Other Comprehensive Income (Tables)
 9 Months Ended
Sep. 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 before reclassifications
365

94,794

—

95,159

Amounts reclassified from accumulated other comprehensive income
372

(6,731
)
1,661

(4,698
)
Current period other comprehensive income, before tax
737

88,063

1,661

90,461

Income tax expense
(280
)
(33,464
)
(631
)
(34,375
)
Current period other comprehensive income, net of tax
457

54,599

1,030

56,086

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

(24
)
—

—

Balance September 30, 2017
$
3,456

$
81,903

$
(18,298
)
$
67,061

Balance January 1, 2016
$
3,316

$
49,750

$
(20,596
)
$
32,470

Other comprehensive income (loss) before reclassifications
(837
)
141,752

—

140,915

Amounts reclassified from accumulated other comprehensive income
270

—

1,737

2,007

Current period other comprehensive income (loss), before tax
(567
)
141,752

1,737

142,922

Income tax (expense) benefit
215

(53,865
)
(660
)
(54,310
)
Current period other comprehensive income (loss), net of tax
(352
)
87,887

1,077

88,612

Balance September 30, 2016
$
2,964

$
137,637

$
(19,519
)
$
121,082