Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 44,413	$ 45,743
Accounts receivable, net	39,881	57,888
Inventories, net	121,916	109,653
Prepaid expenses and other current assets	9,392	15,346
Total current assets	215,602	228,630
Property, plant and equipment, net	37,896	38,594
Long-term restricted cash	107	107
Other assets	19,064	13,541
TOTAL ASSETS	272,669	280,872
Current liabilities
Accounts payable	17,703	36,709
Accrued compensation	13,191	10,597
Warranty	3,639	2,556
Income taxes	777
Deferred revenue	9,857	13,859
Other current liabilities	4,456	4,408
Total current liabilities	49,623	68,129
Long-term deferred revenue	2,087	2,417
Other long-term liabilities	5,190	4,759
Commitments and contingencies (Note 10)
Stockholders' equity
Preferred stock
Common stock	107	106
Additional paid-in capital	498,012	493,967
Treasury stock	(1,218)	(1,218)
Accumulated deficit	(286,330)	(293,520)
Accumulated other comprehensive income	5,198	6,232
Total Stockholders' equity	215,769	205,567
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 272,669	$ 280,872