Warranty (Tables)

3 Months Ended

Mar. 31, 2012

Warranty [Abstract]

Changes in Warranty Reserve

The changes in warranty reserves for the three months ended March 31, 2012 and 2011 were as follows:

	Three Months Ended
	March 31
	2012			2011
Beginning balance	$	8,759		$	7,043
Additions charged to expense		2,927			2,880
Foreign currency fluctuations		53			50
Claims paid		(2,929	)		(2,590	)
Ending balance	$	8,810		$	7,383