CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Current assets:
Cash and cash equivalents	$ 33,870	$ 67,948
Restricted cash	2,788	2,621
Accounts receivable, net of allowance for doubtful accounts of $22 and $27, respectively	105,959	124,159
Manufacturing inventories	40,614	50,274
Service parts inventories	21,407	24,640
Other current assets	6,953	11,942
Total current assets	211,591	281,584
Long-term assets:
Property and equipment, less accumulated depreciation	12,939	14,653
Intangible assets, less accumulated amortization	451	731
Goodwill	0	55,613
Other long-term assets	4,565	4,577
Total long-term assets	17,955	75,574
Total assets	229,546	357,158
Current liabilities:
Accounts payable	46,136	54,367
Accrued warranty	3,430	4,219
Deferred revenue, current	88,919	95,899
Accrued restructuring charges, current	1,621	3,855
Long-term debt, current	3,000	0
Convertible subordinated debt, current, net of unamortized debt issuance costs of $390 at March 31, 2015	0	83,345
Accrued compensation	22,744	35,414
Other accrued liabilities	13,806	20,740
Total current liabilities	179,656	297,839
Long-term liabilities:
Deferred revenue, long-term	35,427	39,532
Accrued restructuring charges, long-term	1,116	991
Long-term debt	62,709	0
Convertible subordinated debt, long-term net of unamortized debt issuance costs of $747 and $1,207, respectively	69,253	68,793
Other long-term liabilities	8,324	10,441
Total long-term liabilities	$ 176,829	$ 119,757
Commitments and contingencies (Note 13)
Preferred stock:
Preferred stock, 20,000 shares authorized; no shares issued as of March 31, 2016 and 2015	$ 0	$ 0
Common stock:
Common stock, $0.01 par value; 1,000,000 shares authorized; 266,209 and 258,208 shares issued and outstanding as of March 31, 2016 and 2015, respectively	2,662	2,582
Capital in excess of par	464,549	456,411
Accumulated deficit	(597,994)	(523,311)
Accumulated other comprehensive income	3,844	3,880
Stockholders’ deficit	(126,939)	(60,438)
Total liabilities and stockholders' deficit	$ 229,546	$ 357,158