Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 30, 2017	Sep. 30, 2017
ASSETS
Cash and cash equivalents	$ 291,679	$ 280,003
Short term marketable securities	20,146	18,408
Accounts receivable, net of allowance for doubtful accounts of $838 and $1,062 at December 30, 2017 and September 30, 2017, respectively	131,059	152,299
Prepaid expenses	60,137	49,913
Other current assets	116,438	165,933
Total current assets	619,459	666,556
Property and equipment, net	61,219	63,600
Goodwill	1,184,521	1,182,772
Acquired intangible assets, net	243,467	257,908
Long term marketable securities	30,421	31,907
Deferred tax assets	129,886	123,166
Other assets	36,969	34,475
Total assets	2,305,942	2,360,384
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	32,651	35,160
Accrued expenses and other current liabilities	64,902	80,761
Accrued compensation and benefits	71,366	110,957
Accrued income taxes	15,695	5,735
Deferred revenue	419,722	446,296
Total current liabilities	604,336	678,909
Long term debt	742,622	712,406
Deferred tax liabilities	5,601	17,880
Deferred revenue	11,772	12,611
Other liabilities	52,512	53,142
Total liabilities	1,416,843	1,474,948
Commitments and contingencies (Note 13)
Stockholders’ equity:
Preferred stock, $0.01 par value; 5,000 shares authorized; none issued	0	0
Common stock, $0.01 par value; 500,000 shares authorized; 116,126 and 115,333 shares issued and outstanding at December 30, 2017 and September 30, 2017, respectively	1,161	1,153
Additional paid-in capital	1,594,546	1,609,030
Accumulated deficit	(637,519)	(650,840)
Accumulated other comprehensive loss	(69,089)	(73,907)
Total stockholders’ equity	889,099	885,436
Total liabilities and stockholders’ equity	$ 2,305,942	$ 2,360,384