Revenue - Summary of Revenue by Contract Types (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total Revenue	$ 175,042	$ 193,840	$ 372,701	$ 402,271
Fixed-price contracts
Disaggregation of Revenue [Line Items]
Total Revenue	97,711	105,283	214,468	214,756
Time and materials and other cost reimbursable contracts
Disaggregation of Revenue [Line Items]
Total Revenue	$ 77,331	$ 88,557	$ 158,233	$ 187,515