Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Current assets:
Cash	$ 140,643	$ 121,139
Accounts receivable, net of allowance for doubtful accounts of $1,678 at December 31, 2018 and $1,478 at June 30, 2018	144,909	212,423
Inventories	58,297	63,867
Prepaid expenses and other current assets	39,088	30,484
Total current assets	382,937	427,913
Property and equipment, net	74,499	78,519
Intangible assets, net	63,544	77,092
Goodwill	137,799	139,082
Other assets	53,170	47,642
Total assets	711,949	770,248
Current liabilities:
Current portion of long-term debt	9,009	9,007
Accounts payable	34,977	75,689
Accrued compensation and benefits	46,500	50,351
Accrued warranty	12,808	12,807
Deferred revenue	138,239	130,865
Other accrued liabilities	70,035	81,153
Total current liabilities	311,568	359,872
Deferred revenue, less current portion	47,854	43,660
Long-term debt, less current portion	174,246	188,749
Deferred income taxes	1,699	6,135
Other long-term liabilities	60,711	59,100
Commitments and contingencies (Note 10)
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; 119,089 and 116,124 shares issued, respectively; 116,723 and 116,124 shares outstanding, respectively	119	116
Additional paid-in-capital	962,924	942,397
Accumulated other comprehensive loss	(2,725)	(1,703)
Accumulated deficit	(829,447)	(828,078)
Treasury stock at cost: 2,366 and 0 shares, respectively	(15,000)
Total stockholders’ equity	115,871	112,732
Total liabilities and stockholders’ equity	$ 711,949	$ 770,248