CONTINGENCIES (Tables)

3 Months Ended

Mar. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Product warranty accrual activity

The following table sets forth the activity in the warranty accrual account for the three months ended ended March 31, 2012 and 2011 (in thousands):

	Three Months Ended March 31,
	2012			2011 (Revised)
Accrual balance at beginning of year (revised)	$	5,960		$	5,894
Accruals for product warranties	3,108			2,388
Costs of warranty claims	(2,943		)	(2,637		)
Accrual balance at end of period	$	6,125		$	5,645