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Other Comprehensive Income (Loss) Other Comprehensive Income (Loss) Net of Tax (Tables)
 9 Months Ended
Sep. 30, 2016
Statement of Comprehensive Income [Abstract]  
Comprehensive Income (Loss) [Table Text Block]
Other comprehensive income components, net of tax, are shown in the following table for the three-month and nine-month periods ended September 30, 2016 and 2015:

(in thousands)
 
Changes in pension plan assets and benefit obligations
 
Unrealized gains and losses on available for sale securities
 
Total
Beginning balance at July 1, 2016
 
$
(15,351
)
 
$
15,740

 
$
389

 
Other comprehensive loss before reclassifications
 
—

 
(2,182
)
 
(2,182
)
 
Amounts reclassified from accumulated other comprehensive loss
 
—

 
—

 
—

Net current period other comprehensive loss
 
—

 
(2,182
)
 
(2,182
)
Ending balance at September 30, 2016
 
$
(15,351
)
 
$
13,558

 
$
(1,793
)
 
 
 
 
 
 
 
 
Beginning balance at July 1, 2015
 
$
(14,865
)
 
$
885

 
$
(13,980
)
 
Other comprehensive income before reclassifications
 
—

 
6,551

 
6,551

 
Amounts reclassified from accumulated other comprehensive loss
 
—

 
—

 
—

Net current period other comprehensive income
 
—

 
6,551

 
6,551

Ending balance at September 30, 2015
 
$
(14,865
)
 
$
7,436

 
$
(7,429
)



(in thousands)
 
Changes in pension plan assets and benefit obligations
 
Unrealized gains and losses on available for sale securities
 
Total
Beginning balance at January 1, 2016
 
$
(15,351
)
 
$
(292
)
 
$
(15,643
)
 
Other comprehensive income before reclassifications
 
—

 
13,850

 
13,850

 
Amounts reclassified from accumulated other comprehensive loss
 
—

 
—

 
—

Net current period other comprehensive income
 
—

 
13,850

 
13,850

Ending balance at September 30, 2016
 
$
(15,351
)
 
$
13,558

 
$
(1,793
)
 
 
 
 
 
 
 
 
Beginning balance at January 1, 2015
 
$
(14,865
)
 
$
1,257

 
$
(13,608
)
 
Other comprehensive income before reclassifications
 
—

 
6,179

 
6,179

 
Amounts reclassified from accumulated other comprehensive loss
 
—

 
—

 
—

Net current period other comprehensive income
 
—

 
6,179

 
6,179

Ending balance at September 30, 2015
 
$
(14,865
)
 
$
7,436

 
$
(7,429
)