CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013
Current assets:
Cash and cash equivalents	$ 76,731	$ 68,976
Restricted cash	3,104	3,023
Accounts receivable, net of allowance for doubtful accounts of $78 and $62, respectively	86,967	97,546
Manufacturing inventories	51,290	53,075
Service parts inventories	31,876	35,368
Other current assets	12,760	12,192
Total current assets	262,728	270,180
Long-term assets:
Property and equipment, less accumulated depreciation	20,216	21,456
Intangible assets, less accumulated amortization	10,589	12,813
Goodwill	55,613	55,613
Other long-term assets	9,264	9,531
Total long-term assets	95,682	99,413
Total Assets	358,410	369,593
Current liabilities:
Accounts payable	35,274	47,634
Accrued warranty	7,015	7,520
Deferred revenue, current	88,321	91,108
Accrued restructuring charges, current	4,117	3,021
Accrued compensation	28,599	30,964
Other accrued liabilities	18,842	20,188
Total current liabilities	182,168	200,435
Long-term liabilities:
Deferred revenue, long-term	39,011	38,393
Convertible subordinated debt	205,000	205,000
Other long-term liabilities	9,540	9,547
Total long-term liabilities	253,551	252,940
Stockholders' deficit:
Common stock, $0.01 par value; 1,000,000 shares authorized; 243,493 and 243,080 shares issued and outstanding at June 30, 2013 and March 31, 2013, respectively	2,435	2,431
Capital in excess of par	430,820	427,611
Accumulated deficit	(516,623)	(520,016)
Accumulated other comprehensive income	6,059	6,192
Total stockholders' deficit	(77,309)	(83,782)
Total liabilities and stockholders' deficit	$ 358,410	$ 369,593