CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Current assets:
Cash and cash equivalents	$ 174,219	$ 195,354
Accounts receivable, net	273,356	312,107
Prepaid expenses and other current assets	34,634	43,513
Total current assets	482,209	550,974
Marketable securities	31,303	31,884
Other investments	1,289	1,312
Property and equipment, net	22,897	27,913
Operating lease right-of-use assets	43,256	47,275
Goodwill	783,744	788,185
Intangible assets, net	3,007	4,099
Deferred income tax	17,428	20,549
Other assets	101,352	95,585
Total assets	1,486,485	1,567,776
Current liabilities:
Accounts payable	16,828	20,749
Accrued compensation and employee benefits	61,825	103,506
Other accrued liabilities	71,628	79,535
Deferred revenue	102,481	105,417
Current maturities on debt	130,000	250,000
Total current liabilities	382,762	559,207
Long-term debt	1,664,674	1,009,018
Operating lease liabilities	47,362	53,670
Other liabilities	55,103	56,823
Total liabilities	2,149,901	1,678,718
Commitments and contingencies
Stockholders’ deficit:
Preferred stock ($0.01 par value; 1,000 shares authorized; none issued and outstanding)	0	0
Common stock ($0.01 par value; 200,000 shares authorized, 88,857 shares issued and 25,982 and 27,568 shares outstanding at March 31, 2022 and September 30, 2021, respectively)	260	276
Additional paid-in-capital	$ 1,242,280	$ 1,237,348
Treasury stock, shares	62,875	61,289
Treasury stock, at cost (62,875 and 61,289 shares at March 31, 2022 and September 30, 2021, respectively)	$ (4,599,242)	$ (3,857,855)
Retained earnings	2,774,485	2,585,143
Accumulated other comprehensive loss	(81,199)	(75,854)
Total stockholders’ deficit	(663,416)	(110,942)
Total liabilities and stockholders’ deficit	$ 1,486,485	$ 1,567,776