Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net Income (Loss)	$ 199,937	$ 206,244
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	76,943	65,456
Amortization of right-of-use lease assets	24,705	26,149
Stock-based compensation	147,568	133,283
Loss on investment	0	31,854
Gain on divestiture of business	0	(29,808)
Other non-cash items, net	(3,114)	(645)
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	99,521	25,228
Accounts payable and accrued expenses	5,407	(7,434)
Accrued compensation and benefits	5,961	(9,334)
Deferred revenue	18,696	18,038
Accrued income taxes	(9,910)	6,124
Other current assets and prepaid expenses	8,670	(26,933)
Operating lease liabilities	(1,360)	(10,544)
Other noncurrent assets and liabilities	(11,932)	(30,851)
Net cash provided by operating activities	561,092	396,827
Cash flows from investing activities:
Additions to property and equipment	(18,035)	(9,979)
Acquisitions of businesses, net of cash acquired	(828,271)	(274,974)
Proceeds from sale of investments	349	46,906
Purchases of investments	(5,823)	0
Purchase of intangible assets	0	(5,453)
Settlement of net investment hedges	(14,204)	18,043
Divestitures of businesses and assets, net	(154)	32,518
Net cash provided by (used in) investing activities	(866,138)	(192,939)
Cash flows from financing activities:
Borrowings under credit facility	1,130,000	264,000
Repayments of borrowings under credit facility	(744,000)	(280,000)
Repurchases of common stock	0	(125,000)
Proceeds from issuance of common stock	10,592	10,857
Payments of withholding taxes in connection with stock-based awards	(75,489)	(62,856)
Payments of principal for financing leases	(217)	(239)
Credit facility origination costs	(13,355)	0
Net cash provided by (used in) financing activities	307,531	(193,238)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	6,835	(14,654)
Net change in cash, cash equivalents, and restricted cash	9,320	(4,004)
Cash, cash equivalents, and restricted cash, beginning of period	272,888	327,046
Cash, cash equivalents, and restricted cash, end of period	282,208	323,042
Supplemental disclosure of non-cash financing and investing activities:
Withholding taxes in connection with stock-based awards, accrued	5,705	5,803
Operating right-of-use assets obtained in exchange for operating lease liabilities	$ 23,142	$ 11,825