COMMITMENTS AND CONTINGENCIES (Tables)

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Summary of the activity related to the product warranty liability

The following table summarizes the activity related to the product warranty liability for the three months ended March 31, 2013 and 2012.

	Three Months Ended
	March 31, 2013			March 31, 2012
	(In thousands)
Balance at beginning of period	$	4,832		$	5,746
Accrual for warranties during the period, net of change in estimate	487			1,287
Actual costs incurred	(690		)	(1,309		)
Balance at end of period	$	4,629		$	5,724