Income Taxes - Summary of Federal Income Tax Rate and Effective Income Tax Rate (Details) - USD ($) $ in Thousands		12 Months Ended
Jun. 01, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Reconciliation, Amount
Statutory federal income tax rate		$ 83,391	$ 82,268	$ 28,288
Change in valuation allowance		(0)	(134,695)	(16,489)
State income taxes, net of federal tax benefit		6,518	(28,768)	(2,998)
Federal research and development credits		(7,477)	(5,764)	(5,483)
Uncertain tax positions		2,418	3,398	3,072
Foreign tax credit		(9,078)	(35,368)	0
Foreign rate differences		(8,982)	(34,584)	(22,074)
Foreign tax on U.S. provision		9,078	5,931	4,523
Excess tax benefits from restricted stock		(8,278)	(6,141)	(1,743)
Audits and settlements		0	33,370	0
U.S. permanent items		15,304	18,389	6,590
Base Erosion Anti-Abuse Tax (BEAT)		0	2,936	(1,759)
GILTI, net of foreign tax credits		2,705	18,217	14,899
Foreign-Derived Intangible Income (FDII)		(6,848)	(4,428)	(2,461)
Other, net		1,578	71	(354)
Provision (benefit) for income taxes		$ 84,017	$ (85,168)	$ 4,011
Reconciliation, Percent
Statutory federal income tax rate		21.00%	21.00%	21.00%
Change in valuation allowance		0.00%	(34.00%)	(12.00%)
State income taxes, net of federal tax benefit		2.00%	(8.00%)	(2.00%)
Federal research and development credits		(2.00%)	(2.00%)	(4.00%)
Uncertain tax positions		1.00%	1.00%	2.00%
Foreign tax credit		(2.00%)	(9.00%)	0.00%
Foreign rate differences		(2.00%)	(9.00%)	(16.00%)
Foreign tax on U.S. provision		2.00%	2.00%	3.00%
Excess tax benefits from restricted stock		(2.00%)	(2.00%)	(1.00%)
Audits and settlements		0.00%	9.00%	0.00%
U.S. permanent items		3.00%	5.00%	5.00%
Base Erosion Anti-Abuse Tax (BEAT)		0.00%	1.00%	(1.00%)
GILTI, net of foreign tax credits		1.00%	4.00%	11.00%
Foreign-Derived Intangible Income (FDII)		(2.00%)	(1.00%)	(2.00%)
Other, net		(1.00%)	0.00%	(1.00%)
Provision (benefit) for income taxes		21.00%	(22.00%)	3.00%
PLM Services Business Disposition
Reconciliation, Amount
Sale of a portion of the PLM services business	$ 60,400	$ 6,844	$ 0	$ 0
Reconciliation, Percent
Sale of a portion of the PLM services business		2.00%	0.00%	0.00%

Effective Income Tax Rate Reconciliation, Excess Tax Benefits from Restricted Stock, Amount

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