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WARRANTY COSTS AND OTHER CONTINGENCIES (Tables)
9 Months Ended
Sep. 30, 2016
WARRANTY COSTS AND OTHER CONTINGENCIES  
Schedule of analysis of warranty accruals
(in thousands)   2016     2015  
Balance at beginning of period   $ 3,405     $ 3,836  
Less: Payments made during the period     (2,184 )     (1,213 )
Add: Warranty provision for the period     2,357       1,993  
Changes to warranty provision for prior periods     299       (858 )
Balance at September 30   $ 3,877     $ 3,758