Product Warranty Reserve (Tables)

9 Months Ended

Sep. 30, 2018

Guarantees [Abstract]

Roll Forward of Product Warranty Reserve

The following is a rollforward of the product warranty reserve:

	Nine Months Ended September 30
	2018			2017
Beginning of period balance	$	1,076		$	1,058
Additions charged to income		103			373
Warranty usage		(156	)		(433	)
Currency translation		(74	)		82
End of period balance	$	949		$	1,080