COMMITMENTS AND CONTINGENCIES (Tables)

6 Months Ended

Jun. 30, 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 and six months ended June 30, 2013 and 2012.

	Three Months Ended						Six Months Ended
	June 30, 2013			June 30, 2012			June 30, 2013			June 30, 2012
	(In thousands)
Balance at beginning of period	$	4,629		$	5,724		$	4,832		$	5,746
Accrual for warranties during the period, net of change in estimate	301			1,336			788			2,623
Actual costs incurred	(859		)	(1,395		)	(1,549		)	(2,704		)
Balance at end of period	$	4,071		$	5,665		$	4,071		$	5,665