Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Current assets:
Cash and cash equivalents	$ 140,167	$ 121,139
Accounts receivable, net of allowance for doubtful accounts of $1,661 at September 30, 2018 and $1,478 at June 30, 2018	164,683	212,423
Inventories	55,580	63,867
Prepaid expenses and other current assets	35,371	30,484
Total current assets	395,801	427,913
Property and equipment, net	76,224	78,519
Intangible assets, net	70,023	77,092
Goodwill	139,082	139,082
Other assets	50,754	47,642
Total assets	731,884	770,248
Current liabilities:
Current portion of long-term debt	9,008	9,007
Accounts payable	43,873	75,689
Accrued compensation and benefits	36,387	50,351
Accrued warranty	12,601	12,807
Deferred revenue	137,991	130,865
Other accrued liabilities	82,180	81,153
Total current liabilities	322,040	359,872
Deferred revenue, less current portion	45,874	43,660
Long-term debt, less current portion	176,498	188,749
Deferred income taxes	6,234	6,135
Other long-term liabilities	64,107	59,100
Commitments and contingencies (Note 9)
Stockholders’ equity:
Convertible preferred stock, $.001 par value, issuable in series, 2,000 shares authorized; none issued
Common stock, $.001 par value, 750,000 shares authorized; 118,270 shares issued and outstanding at September 30, 2018 and 116,124 shares issued and outstanding at June 30, 2018	118	116
Additional paid-in-capital	956,356	942,397
Accumulated other comprehensive loss	(2,697)	(1,703)
Accumulated deficit	(836,646)	(828,078)
Total stockholders’ equity	117,131	112,732
Total liabilities and stockholders’ equity	$ 731,884	$ 770,248