Balance Sheet (Tables)

12 Months Ended

Dec. 31, 2011

Consolidated Balance Sheets [Abstract]

Summary of Balance Sheet

	December 31,
	2011			2010
	(In thousands)
Inventories:
Raw materials	$	14,099		$	10,378
Work-in-process		4,250			2,324
Finished goods		52,300			45,363
	$	70,649		$	58,065
Property and equipment:
Furniture and fixtures		6,706			9,110
Machinery and equipment		97,916			90,649
Leasehold improvements		7,079			5,625
		111,701			105,384
Less: accumulated depreciation and amortization		(71,232	)		(65,559	)
	$	40,469		$	39,825
Accrued liabilities:
Accrued compensation	$	10,915		$	9,848
Accrued warranty		5,558			4,811
Accrued incentive compensation		7,917			11,512
Other		22,506			25,112
	$	46,896		$	51,283