Condensed Consolidated Balance Sheets (USD $) In Thousands	12 Months Ended	9 Months Ended
	Mar. 31, 2010	Dec. 31, 2010 Restated [Member]
ASSETS
Cash and cash equivalents	$ 87,594	$ 169,021
Marketable securities	54,469	73,910
Accounts receivable, net	57,290	26,271
Inventory	35,858	77,644
Prepaid expenses and other current assets	20,294	42,053
Restricted cash	5,713	5,433
Deferred tax assets	1,776	6,294
Total current assets	262,994	400,626
Property, plant and equipment, net	64,315	89,698
Goodwill	36,696	46,436
Intangibles, net	7,770	7,546
Marketable securities	7,342	12,161
Deferred tax assets	3,043	5,587
Other assets	18,024	11,042
Total assets	400,184	573,096
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable and accrued expenses	84,319	93,167
Deferred revenue	19,970	11,449
Deferred tax liabilities	471	2,653
Total current liabilities	104,760	107,269
Deferred revenue	13,302	1,830
Deferred tax liabilities	777	1,446
Other	380	429
Total liabilities	119,219	110,974
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock	448	507
Additional paid-in capital	698,417	881,900
Accumulated other comprehensive loss	(7,011)	(8,246)
Accumulated deficit	(410,889)	(412,039)
Total stockholders' equity	280,965	462,122
Total liabilities and stockholders' equity	$ 400,184	$ 573,096