CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2026	Sep. 30, 2025
Current assets:
Cash and cash equivalents	$ 219,419	$ 134,136
Accounts receivable, net	619,957	529,148
Prepaid expenses and other current assets	61,397	41,881
Total current assets	900,773	705,165
Marketable securities	53,046	54,625
Property and equipment, net	79,623	67,713
Operating lease right-of-use assets	25,025	26,213
Goodwill	781,390	783,340
Deferred income taxes	103,436	118,553
Other assets	104,956	112,524
Total assets	2,048,249	1,868,133
Current liabilities:
Accounts payable	36,335	32,315
Accrued compensation and employee benefits	87,259	115,369
Other accrued liabilities	98,533	114,618
Deferred revenue	183,163	187,372
Current maturities on debt	0	399,541
Total current liabilities	405,290	849,215
Long-term debt	3,639,063	2,656,150
Operating lease liabilities	17,555	19,187
Other liabilities	87,991	89,365
Total liabilities	4,149,899	3,613,917
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 23,295 and 23,764 shares outstanding at March 31, 2026 and September 30, 2025, respectively)	233	238
Additional paid-in-capital	1,316,744	1,331,120
Treasury stock, at cost (65,562 and 65,093 shares at March 31, 2026 and September 30, 2025, respectively)	(8,298,729)	(7,537,908)
Retained earnings	4,975,647	4,552,816
Accumulated other comprehensive loss	(95,545)	(92,050)
Total stockholders’ deficit	(2,101,650)	(1,745,784)
Total liabilities and stockholders’ deficit	$ 2,048,249	$ 1,868,133