COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2011

COMMITMENTS AND CONTINGENCIES.

Schedule of aggregate non-cancelable future minimum rental payments under operating leases

Aggregate non-cancelable future minimum rental payments under operating leases are as follows:

Years Ending December 31:	Operating Leases
	(In thousands)
2012	$	3,453
2013		6,671
2014		6,394
2015		5,926
2016		5,983
Thereafter		34,514
	$	62,941

Summary of the activity related to the product warranty liability

	Years Ended
	December 31, 2011			December 31, 2010			December 31, 2009
	(In thousands)
Balance at beginning of period	$	4,019		$	4,225		$	5,579
Accrual for warranties during the period		7,383			3,779			3,190
Actual costs incurred		(5,656	)		(3,985	)		(4,544	)
Balance at end of period	$	5,746		$	4,019		$	4,225