Revenue - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Contract assets	$ 63,911	$ 88,351
Contract liabilities	(133,753)	(79,857)
Net contract asset (liability)	(69,842)	8,494
Revenue recognized related to contract liabilities	36,400
Retention amounts included in accounts receivable	7,200	$ 6,900
Retained amount expected to be collected in the next twelve months	6,900
Retained amount expected to be collected	$ 300