CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net (loss) income	$ (20,631)	$ 100,268	$ 5,881
Adjustments to reconcile net (loss) income to net cash provided by operations:
Depreciation and amortization	30,041	28,844	25,765
Provision for doubtful accounts	704	401	366
Stock-based compensation	47,285	29,682	22,043
Non-cash interest expense	5,286
Loss on debt extinguishment	19,279
Deferred tax (benefit) expense	(11,354)	(101,223)	12,473
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	16,112	904	8,472
Prepaid expenses and other assets	(30,311)	(8,836)	(2,960)
Deferred costs	(1,381)	4,339	(12,528)
Accounts payable	(2,430)	10,130	(6,291)
Accrued expenses and other liabilities	27,819	6,289	12,946
Deferred revenue	(35,630)	17,674	49,458
Net cash provided by operating activities	44,789	88,071	115,259
Cash flows from investing activities:
Capital expenditures	(19,012)	(4,517)	(6,510)
Purchases of marketable securities	(11,663)
Payments for business acquisitions, net of cash acquired			(79,802)
Net cash used in investing activities	(30,675)	(4,517)	(86,312)
Cash flows from financing activities:
Net transactions with Parent	12,964	(83,554)	(28,947)
Distributions to Parent	(152,978)
Proceeds from long-term debt, net of discount	547,719
Payments for long-term debt issuance costs	(6,402)
Principal payments of long-term debt	(271,563)
Common stock repurchases for tax withholdings for net settlement of equity awards	(9,369)
Principal payments of lease liabilities arising from a finance lease	(136)
Proceeds from issuance of common stock from employee stock plans	1,318
Net cash provided by (used in) financing activities	121,553	(83,554)	(28,947)
Effects of exchange rate changes on cash and cash equivalents	400
Net change in cash and cash equivalents	136,067
Cash and cash equivalents at end of year	136,067
Supplemental information:
Cash paid for income taxes	2,181	$ 12,139	$ 18,444
Cash paid for interest	$ 14,733