CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Current assets:
Cash and cash equivalents	$ 160,421	$ 136,778
Accounts receivable, net	367,478	387,947
Prepaid expenses and other current assets	37,364	31,723
Total current assets	565,263	556,448
Marketable securities	36,955	33,014
Other investments	1,258	1,223
Property and equipment, net	10,406	10,966
Operating lease right-of-use assets	18,916	25,703
Goodwill	777,195	773,327
Intangible assets, net	642	917
Deferred income tax	63,725	59,136
Other assets	119,158	114,547
Total assets	1,593,518	1,575,281
Current liabilities:
Accounts payable	18,584	19,009
Accrued compensation and employee benefits	68,216	102,471
Other accrued liabilities	46,487	59,478
Deferred revenue	146,822	136,730
Current maturities on debt	153,000	50,000
Total current liabilities	433,109	367,688
Long-term debt	1,808,655	1,811,658
Operating lease liabilities	11,899	23,903
Other liabilities	65,620	60,022
Total liabilities	2,319,283	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 24,879 and 24,770 shares outstanding at December 31, 2023 and September 30, 2023, respectively)	249	248
Additional paid-in-capital	$ 1,239,131	$ 1,350,713
Treasury stock, shares	63,978	64,087
Treasury stock, at cost (63,978 and 64,087 shares at December 31, 2023 and September 30, 2023, respectively)	$ (5,380,827)	$ (5,324,865)
Retained earnings	3,509,124	3,388,059
Accumulated other comprehensive loss	(93,442)	(102,145)
Total stockholders’ deficit	(725,765)	(687,990)
Total liabilities and stockholders’ deficit	$ 1,593,518	$ 1,575,281