Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income	$ 206,244	$ 183,980
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	65,456	62,670
Amortization of right-of-use lease assets	26,149	28,031
Stock-based compensation	133,283	133,896
Loss on investment	31,854	0
Gain on divestiture of business	(29,808)	0
Other non-cash items, net	(645)	(1,108)
Changes in operating assets and liabilities, excluding the effects of acquisitions:
Accounts receivable	25,228	(4,110)
Accounts payable and accrued expenses	(7,434)	15,834
Accrued compensation and benefits	(9,334)	121
Deferred revenue	18,038	30,733
Accrued income taxes	6,124	(13,524)
Other current assets and prepaid expenses	(26,933)	426
Operating lease liabilities	(10,544)	(13,106)
Other noncurrent assets and liabilities	(30,851)	(100,355)
Net cash provided by operating activities	396,827	323,488
Cash flows from investing activities:
Additions to property and equipment	(9,979)	(11,662)
Purchases of short- and long-term marketable securities	0	(7,562)
Proceeds from sales of short- and long-term marketable securities	0	56,170
Proceeds from maturities of short- and long-term marketable securities	0	9,861
Acquisitions of businesses, net of cash acquired	(274,974)	(717,779)
Proceeds from sale of investments	46,906	0
Purchases of investments	0	(2,000)
Purchase of intangible assets	(5,453)	(550)
Settlement of net investment hedges	18,043	(1,291)
Divestitures of businesses and assets, net	32,518	0
Net cash used in investing activities	(192,939)	(674,813)
Cash flows from financing activities:
Borrowings under credit facility	264,000	600,000
Repayments of borrowings under credit facility	(280,000)	(128,000)
Repurchases of common stock	(125,000)	0
Proceeds from Issuance of Common Stock	10,857	10,484
Payments of withholding taxes in connection with stock-based awards	(62,856)	(42,215)
Payments of principal for financing leases	(239)	(279)
Net cash (used in) provided by financing activities	(193,238)	439,990
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(14,654)	1,646
Net change in cash, cash equivalents, and restricted cash	(4,004)	90,311
Cash, cash equivalents, and restricted cash, beginning of period	327,046	275,960
Cash, cash equivalents, and restricted cash, end of period	323,042	366,271
Supplemental disclosure of non-cash financing activities:
Withholding taxes in connection with stock-based awards, accrued	$ 5,803	$ 9,979