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Revenue Recognition - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2023	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 266,865	$ 243,593
Contract assets, net	192,585	176,093
Contract liabilities	36,586	18,588
Non-current contract liabilities	41,624	$ 23,203
Change ($)
Accounts receivable, net	23,272
Contract assets, net	16,492
Contract liabilities - current	17,998
Contract liabilities - non-current	$ 18,421
Change (%)
Accounts receivable, net	10.00%
Contract assets, net	9.00%
Contract liabilities - current	97.00%
Contract liabilities - non-current	79.00%

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Change In Contract With Customer, Assets And Liabilities Percent [Abstract]

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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-Section 45
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-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

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