Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 01, 2017	Sep. 30, 2016
ASSETS
Cash and cash equivalents	$ 243,316	$ 277,935
Short term marketable securities	23,555	18,695
Accounts receivable, net of allowance for doubtful accounts of $1,230 and $1,012 at April 1, 2017 and September 30, 2016, respectively	142,620	161,357
Prepaid expenses	71,068	52,819
Other current assets	191,164	131,783
Total current assets	671,723	642,589
Property and equipment, net	63,429	67,113
Goodwill	1,161,731	1,169,813
Acquired intangible assets, net	279,846	310,305
Long term marketable securities	24,636	30,921
Deferred tax assets	99,087	89,692
Other assets	33,296	35,296
Total assets	2,333,748	2,345,729
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	18,381	18,022
Accrued expenses and other current liabilities	83,534	84,141
Accrued compensation and benefits	91,651	145,633
Accrued income taxes	8,494	6,303
Deferred revenue	481,885	400,420
Total current liabilities	683,945	654,519
Long term debt	711,976	751,601
Deferred tax liabilities	15,630	13,754
Deferred revenue	10,587	13,237
Other liabilities	64,266	69,952
Total liabilities	1,486,404	1,503,063
Commitments and contingencies (Note 14)
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; 115,808 and 114,968 shares issued and outstanding at April 1, 2017 and September 30, 2016, respectively	1,158	1,150
Additional paid-in capital	1,623,056	1,598,548
Accumulated deficit	(667,324)	(657,079)
Accumulated other comprehensive loss	(109,546)	(99,953)
Total stockholders’ equity	847,344	842,666
Total liabilities and stockholders’ equity	$ 2,333,748	$ 2,345,729