CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ 51,533	$ (15,203)
Depreciation	27,990	37,117
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Amortization of Intangible Assets	55,893	61,636
Stock-based compensation	98,030	84,476
Amortization of Debt Issuance Costs	37,269	37,011
Deferred tax benefit	(55,626)	(5,126)
Loss on extinguishment of debt	18,656	910
Other	2,905	(651)
Changes in operating assets and liabilities, excluding effects of acquisitions:
Accounts receivable	26,264	12,318
Prepaid expenses and other assets	5,030	(14,760)
Accounts payable	(15,868)	8,269
Accrued expenses and other liabilities	(84,762)	2,847
Deferred revenue	19,706	16,448
Net Cash Provided by (Used in) Continuing Operations	187,020	225,292
Cash Provided by (Used in) Operating Activities, Discontinued Operations	(13,307)	71,902
Net cash provided by operating activities	173,713	297,194
Proceeds from Divestiture of Businesses	0	407,043
Cash flows from investing activities:
Capital expenditures	(45,550)	(32,243)
Proceeds from Equity Method Investment, Distribution, Return of Capital	139,090	0
Purchases of marketable securities and other investments	(157,976)	(256,332)
Proceeds from sales and maturities of marketable securities and other investments	290,584	262,914
Payments for (Proceeds from) Other Investing Activities	1,374	(3,102)
Net cash provided by investing activities	88,432	378,280
Cash flows from financing activities:
Repurchase and redemption of debt	(513,642)	(300,000)
Payments for repurchase of common stock	(169,218)	(120,935)
Proceeds from issuance of common stock from employee stock plans	7,204	8,643
Proceeds from Lines of Credit	230,000	0
Repayments of Unsecured Debt	230,000	0
Payments for taxes related to net share settlement of equity awards	(39,968)	(42,562)
Proceeds from (Payments for) Other Financing Activities	2,840	1,442
Net cash used in financing activities	(579,374)	(456,296)
Effects of exchange rate changes on cash and cash equivalents	(3,177)	1,236
Net (decrease) increase in cash and cash equivalents	(320,406)	220,414
Cash and cash equivalents at beginning of period	560,961	315,963
Cash and cash equivalents at end of period	$ 240,555	$ 536,377