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Investments (Tables)
 12 Months Ended
Dec. 31, 2016
Investments [Abstract]  
Schedule Of Long Term Investments [Table Text Block]
In thousands
 
2016
 
2015
Investments in life insurance policies
 
$
52,719

 
$
52,308

Investments in gas pipeline
 
13,767

 
13,866

Other
 
1,890

 
1,892

   Total other investments
 
$
68,376

 
$
68,066