Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net Income (Loss)	$ 376,333	$ 245,540	$ 313,081
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	108,119	104,760	87,694
Amortization of right-of-use lease assets	33,288	32,402	34,346
Stock-based compensation	223,461	206,459	174,863
Loss on investment	0	0	31,854
Gain on divestiture of business	0	0	(29,808)
Other non-cash items, net	(1,625)	(4,065)	(4,560)
Provision (benefit) from deferred income taxes	(39,040)	16,676	42,963
Accounts receivable	(34,629)	(98,607)	(165,006)
Accounts payable and accrued expenses	(24,368)	15,918	6,957
Accrued compensation and benefits	8,404	7,845	(6,645)
Deferred revenue	81,399	56,572	57,586
Accrued income taxes	65,006	4,639	(15,329)
Other current assets and prepaid expenses	(16,137)	6,974	(40,643)
Operating lease liabilities	(13,245)	(1,929)	(13,610)
Other noncurrent assets and liabilities	(16,982)	17,677	(38,417)
Net cash provided by operating activities	749,984	610,861	435,326
Cash flows from investing activities:
Additions to property and equipment	(14,378)	(23,814)	(19,496)
Acquisitions of businesses, net of cash acquired	(93,457)	(828,271)	(282,943)
Proceeds from sale of investments	0	349	46,906
Purchases of investments	0	(5,823)	0
Purchase of intangible assets	(3,990)	(800)	(6,451)
Settlement of net investment hedges	(13,078)	(7,602)	24,857
Divestitures of businesses and assets, net	0	(154)	32,518
Other investing activities	89	0	3,408
Net cash used in investing activities	(124,814)	(866,115)	(201,201)
Cash flows from financing activities:
Borrowings under credit facility	1,084,845	1,540,000	264,000
Repayments of borrowings under credit facility and acquired debt	(1,038,921)	(1,197,000)	(355,000)
Repurchases of common stock	0	0	(125,000)
Proceeds from issuance of common stock	25,674	21,652	21,207
Payments of withholding taxes in connection with stock-based awards	(102,001)	(82,448)	(68,991)
Payments of principal for financing leases	(82)	(536)	(297)
Credit facility origination costs	0	(13,355)	0
Payment of deferred acquisition consideration	(620,040)	0	0
Other Financing Activity	(200)	0	0
Net cash provided by (used in) financing activities	(650,725)	268,313	(264,081)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	3,223	2,851	(24,203)
Net change in cash, cash equivalents, and restricted cash	(22,332)	15,910	(54,159)
Cash, cash equivalents, and restricted cash, beginning of period	288,798	272,888	327,047
Cash, cash equivalents, and restricted cash, end of period	$ 266,466	$ 288,798	$ 272,888