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Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 2020
Stockholders' Equity Note [Abstract]  
Changes in Accumulated Other Comprehensive Loss [Table Text Block]
The following table details the changes in accumulated other comprehensive loss for the three and six months ended June 30, 2020 and 2019:
Three Months Ended
June 30
Six Months Ended
June 30
2020201920202019
(thousands)
Beginning balance, net of taxes
$(50,033) $(47,684) $(50,248) $(47,652) 
Amortization of actuarial (gain) loss, before taxes (a)201  (44) 403  (87) 
Effect of settlements, before taxes (a)—  —  86  —  
Income taxes(51) 11  (124) 22  
Ending balance, net of taxes$(49,883) $(47,717) $(49,883) $(47,717) 
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(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 8, Retirement and Benefit Plans.