
8.	Warranty

We record a liability for warranty claims at the time of sale. The amount of the liability is based on the trend in the historical ratio of claims to sales, the historical length of time between the sale and resulting warranty claim, new product introductions and other factors. Warranty terms on machines generally range from one to four years.

The changes in warranty reserves for the six months ended June 30, 2013 and 2012 were as follows:



	Six Months Ended
	June 30
	2013			2012
Beginning balance	$	9,357		$	8,759
Additions charged to expense	5,578			6,312
Foreign currency fluctuations	(132		)	(17		)
Claims paid	(5,055		)	(5,817		)
Ending balance	$	9,748		$	9,237