CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities:
Net loss	$ (44,702)	$ (80,699)
Adjustments to reconcile net loss to net cash (used in) provided by operations:
Depreciation and amortization	13,151	18,853
Provision for (benefit from) credit loss reserve	3,626	(414)
Stock-based compensation	31,801	23,020
Non-cash interest expense	1,450	3,922
Loss on extinguishment of debt	1,333
Deferred tax (benefit)	1,536	103,394
Unrealized foreign currency transaction (gain) losses	(5,441)	4,854
Other	(4,004)	283
Changes in operating assets and liabilities:
Accounts receivable	(10,951)	(21,626)
Prepaid expenses and other assets	19,902	(34,621)
Deferred costs	2,511	3,753
Accounts payable	4,799	4,638
Accrued expenses and other liabilities	(334)	(2,698)
Deferred revenue	(18,437)	(19,844)
Net cash (used in) provided by operating activities	(3,760)	2,815
Cash flows from investing activities:
Capital expenditures	(3,597)	(14,418)
Purchases of marketable securities	(18,025)	(21,153)
Sale and maturities of marketable securities	20,200	31,003
Payments for equity investments		(584)
Other investing activities	(1,024)	1,735
Net cash used in investing activities	(2,446)	(3,417)
Cash flows from financing activities:
Proceeds from revolving credit facility	24,700
Proceeds from long-term debt, net of discount	190,000
Payments for long-term debt issuance costs	(16,786)
Principal payments of long-term debt	(198,438)	(4,689)
Common stock repurchases for tax withholdings for net settlement of equity awards	(4,834)	(47,960)
Principal payment of lease liabilities arising from a finance lease	(355)	(289)
Proceeds from the issuance of common stock	4,687	34,943
Net cash used in financing activities	(1,026)	(17,995)
Effects of exchange rate changes on cash and cash equivalents	(1,515)	(1,377)
Net change in cash and cash equivalents	(8,747)	(19,974)
Cash and cash equivalents at beginning of period	94,847	128,428
Cash and cash equivalents at end of period	86,100	108,454
Supplemental information:
Cash paid for income taxes	5,752	9,868
Cash paid for interest	$ 11,468	$ 7,724