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Revenue Recognition - Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2023	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 283,315	$ 243,593
Contract assets, net	275,262	176,093
Contract liabilities	22,963	18,588
Non-current contract liabilities	22,721	$ 23,203
Change ($)
Accounts receivable, net	39,722
Contract assets, net	99,169
Contract liabilities - current	4,375
Contract liabilities - non-current	$ (482)
Change (%)
Accounts receivable, net	16.00%
Contract assets, net	56.00%
Contract liabilities - current	24.00%
Contract liabilities - non-current	(2.00%)

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