CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 135,667	$ 136,778
Accounts receivable, net	469,025	387,947
Prepaid expenses and other current assets	36,780	31,723
Total current assets	641,472	556,448
Marketable securities	41,407	33,014
Other investments	1,252	1,223
Property and equipment, net	27,224	10,966
Operating lease right-of-use assets	28,283	25,703
Goodwill	776,376	773,327
Intangible assets, net	367	917
Deferred income tax	72,249	59,136
Other assets	114,487	114,547
Total assets	1,703,117	1,575,281
Current liabilities:
Accounts payable	18,835	19,009
Accrued compensation and employee benefits	68,805	102,471
Other accrued liabilities	68,936	59,478
Deferred revenue	143,544	136,730
Current maturities on debt	15,000	50,000
Total current liabilities	315,120	367,688
Long-term debt	2,028,652	1,811,658
Operating lease liabilities	20,558	23,903
Other liabilities	74,447	60,022
Total liabilities	2,438,777	2,263,271
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 24,753 and 24,770 shares outstanding at March 31, 2024 and September 30, 2023, respectively)	248	248
Additional paid-in-capital	$ 1,281,577	$ 1,350,713
Treasury stock, shares	64,104	64,087
Treasury stock, at cost (64,104 and 64,087 shares at March 31, 2024 and September 30, 2023, respectively)	$ (5,558,809)	$ (5,324,865)
Retained earnings	3,638,923	3,388,059
Accumulated other comprehensive loss	(97,599)	(102,145)
Total stockholders’ deficit	(735,660)	(687,990)
Total liabilities and stockholders’ deficit	$ 1,703,117	$ 1,575,281