Consolidated Condensed Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Assets
Cash and cash equivalents	$ 84,312	$ 65,997
Marketable securities	82,359	115,877
Accounts receivable, net	49,262	44,153
Inventories	96,790	55,915
Deferred tax assets	53,139	53,137
Other current assets	14,574	16,508
Total current assets	380,436	351,587
Long-term marketable securities	0	2,914
Property and equipment, net	85,337	66,978
Goodwill and intangibles, net	24,484	24,268
Deferred tax assets	85,721	89,071
Other assets	9,300	9,644
Total assets	585,278	544,462
Liabilities and Stockholders' Equity
Accounts payable	75,507	38,108
Accrued salaries and benefits	10,956	13,634
Deferred income	7,158	7,228
Supplier agreement	0	5,000
Other accrued liabilities	9,498	9,015
Total current liabilities	103,119	72,985
Other long-term liabilities	4,159	5,620
Stockholders' equity:
Capital stock	1,013,442	1,008,228
Accumulated deficit	(534,682)	(541,609)
Accumulated other comprehensive loss	(760)	(762)
Total stockholders' equity	478,000	465,857
Total liabilities and stockholders' equity	$ 585,278	$ 544,462