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Stockholders' Equity Level 3 Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2013
Stockholders' Equity Note [Abstract]  
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
The following table details the changes in accumulated other comprehensive loss for the three and six months ended June 30, 2013 and 2012:

 
 
Changes in Accumulated Other Comprehensive Loss
 
 
Three Months Ended
June 30
 
Six Months Ended
June 30
 
 
2013
 
2012
 
2013
 
2012
 
 
(thousands)
Beginning Balance
 
$
(119,820
)
 
$
(118,778
)
 
$
(121,229
)
 
$
(120,845
)
Defined benefit pension plans, amounts reclassified from accumulated other comprehensive loss, net of tax of $878, $0, $1,748, and $0, respectively (a)
 
1,425

 
2,000

 
2,834

 
4,067

Ending Balance
 
$
(118,395
)
 
$
(116,778
)
 
$
(118,395
)
 
$
(116,778
)
___________________________________ 
 
(a)
Represents amounts reclassified from accumulated other comprehensive loss. These amounts are included in the computation of net periodic pension cost. For additional information, see Note 6, Retirement and Benefit Plans.