CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net loss	$ (254,119)	$ (28,247)
Adjustments to reconcile net loss to net cash (used in) provided by operations:
Depreciation and amortization	5,384	10,033
Provision for credit loss reserve	6,065	3,626
Stock-based compensation	13,125	24,827
Non-cash interest expense	2,939	910
Deferred tax provision (benefit)	40,949	(422)
Goodwill impairment	252,096	0
Unrealized foreign currency transaction gains	(262)	(6,461)
Other	474	(608)
Changes in operating assets and liabilities:
Accounts receivable	(75)	(14,836)
Prepaid expenses and other assets	5,854	13,014
Deferred costs	3,423	2,559
Accounts payable	(292)	7,864
Accrued expenses and other liabilities	(1,673)	2,930
Deferred revenue	(75,659)	(10,752)
Net cash (used in) provided by operating activities	(1,771)	4,437
Cash flows from investing activities:
Capital expenditures	(2,776)	(2,077)
Purchases of marketable securities		(11,045)
Sale and maturities of marketable securities	3,912	15,900
Other investing activities	(891)	(552)
Net cash provided by investing activities	245	2,226
Cash flows from financing activities:
Payments for long-term debt issuance costs	0	(403)
Principal payments of long-term debt		(4,688)
Common stock repurchases for tax withholdings for net settlement of equity awards	(9,744)	(4,430)
Principal payment of lease liabilities arising from a finance lease	(202)	(316)
Proceeds from the issuance of common stock	10,461	4,394
Net cash provided by (used in) financing activities	515	(5,443)
Effects of exchange rate changes on cash and cash equivalents	(967)	(690)
Net change in cash and cash equivalents	(1,978)	530
Cash and cash equivalents at beginning of period	101,154	94,847
Cash and cash equivalents at end of period	99,176	95,377
Supplemental information:
Cash paid for income taxes	6,256	4,053
Cash paid for interest	$ 3,076	$ 6,492