CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Sep. 30, 2021
Current assets:
Cash and cash equivalents	$ 108,454	$ 128,428
Marketable securities	18,890	30,435
Accounts receivable, net of allowances of $167 and $395	62,698	45,560
Deferred costs	7,422	6,095
Prepaid expenses and other current assets	57,689	76,530
Total current assets	255,153	287,048
Long-term marketable securities	8,784	7,339
Property and equipment, net	38,027	31,505
Deferred costs	24,308	31,702
Operating lease right of use assets	16,641	14,901
Goodwill	1,114,556	1,128,511
Intangible assets, net	12,546	25,348
Deferred tax assets	49,780	159,293
Other assets	57,042	20,081
Total assets	1,576,837	1,705,728
Current liabilities:
Accounts payable	15,370	11,636
Deferred revenue	75,166	78,394
Short-term operating lease liabilities	5,486	4,562
Short-term debt	9,375	6,250
Accrued expenses and other current liabilities	48,990	64,467
Total current liabilities	154,387	165,309
Long-term debt	261,202	265,093
Deferred revenue, net of current portion	173,519	198,343
Long-term operating lease liabilities	13,021	12,216
Other liabilities	24,596	32,822
Total liabilities	626,725	673,783
Commitments and contingencies (Note 12)
Stockholders' Equity:
Common stock, $0.01 par value, 560,000 shares authorized; 39,316 and 38,025 shares issued and outstanding, respectively	393	381
Accumulated other comprehensive (loss) income	(21,055)	1,634
Additional paid-in capital	1,023,896	1,002,353
(Accumulated deficit) Retained earnings	(53,122)	27,577
Total stockholders' equity	950,112	1,031,945
Total liabilities and stockholders' equity	$ 1,576,837	$ 1,705,728