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Contingencies and Commitments (Tables)
 12 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Undiscounted reserve
The undiscounted reserve balance at the beginning of the year, the amounts expensed and paid, and the balance at the end of the year for 2014 and 2013 are as follows:
(Thousands)
 
2014
 
2013
Reserve balance at beginning of year
 
$
(4,809
)
 
$
(5,301
)
Expensed
 
(275
)
 
(503
)
Paid
 
162

 
995

Reserve balance at end of year
 
$
(4,922
)
 
$
(4,809
)
Ending balance recorded in:
 
 
 
 
Other liabilities and accrued items
 
$
(460
)
 
$
(430
)
Other long-term liabilities
 
(4,462
)
 
(4,379
)