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Warranty	9 Months Ended
	Sep. 30, 2017
Product Warranties Disclosures [Abstract]
Warranty	Warranty The current liability warranty reserve balance was $5,274,000 at September 30, 2017 and $5,262,000 at December 31, 2016 and is included in Accrued liabilities on the Balance Sheet.

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- References

No definition available.

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- Definition

The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-URI http://asc.fasb.org/topic&trid=2155896

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