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Contingencies (Tables)
9 Months Ended
Sep. 30, 2017
Loss Contingency [Abstract]  
Schedule Of Product Warranties Accrual
Claims accrued but not yet paid and the related activity within the accrual for the nine months ended September 30, 2017, are presented below: 
 
(Dollars in thousands)
Balance as of December 31, 2016
$
969

Product warranty adjustments
(210
)
Accruals and Payments
(290
)
Balance as of September 30, 2017
$
469