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Commitments and Contingent Liabilities (Tables)
 12 Months Ended
Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Product Warranty Liability
 
Warranty Liability
Balance at December 31, 2016
$
10,154

Additions to warranty liability
3,564

Warranty liability utilized
(5,036
)
Balance at December 31, 2017
$
8,682
Environmental Loss Contingencies
The following table sets forth the Company’s undiscounted environmental obligation:
 
Environmental liability
Balance at December 31, 2016
$
6,270

Additions to environmental obligations
143

Environmental obligations utilized
(269
)
Balance at December 31, 2017
$
6,144