CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 197,836	$ 157,394
Accounts receivable, net	264,804	334,180
Prepaid expenses and other current assets	40,335	42,504
Assets held for sale	48,843	0
Total current assets	551,818	534,078
Marketable securities	30,437	25,513
Other investments	1,340	1,060
Property and equipment, net	34,897	46,419
Operating lease right-of-use assets	50,986	57,656
Goodwill	789,123	812,364
Intangible assets, net	7,437	9,236
Deferred income tax	15,003	14,629
Other assets	98,567	105,285
Total assets	1,579,608	1,606,240
Current liabilities:
Accounts payable	19,767	23,033
Accrued compensation and employee benefits	71,347	117,952
Other accrued liabilities	60,062	63,367
Deferred revenue	100,396	115,159
Current maturities on debt	225,000	95,000
Liabilities related to assets held for sale	23,989	0
Total current liabilities	500,561	414,511
Long-term debt	740,226	739,435
Operating lease liabilities	59,100	73,207
Other liabilities	56,418	48,005
Total liabilities	1,356,305	1,275,158
Commitments and contingencies
Stockholders’ equity:
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 28,829 and 29,096 shares outstanding at March 31, 2021 and September 30, 2020, respectively)	288	291
Additional paid-in-capital	1,181,692	1,218,583
Treasury stock, at cost (60,028 and 59,761 shares at March 31, 2021 and September 30, 2020, respectively)	(3,239,109)	(2,997,856)
Retained earnings	2,348,225	2,193,059
Accumulated other comprehensive loss	(67,793)	(82,995)
Total stockholders’ equity	223,303	331,082
Total liabilities and stockholders’ equity	$ 1,579,608	$ 1,606,240