Revenue from Contracts with Customers - Breakdown of Revenues by Geographical Location (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 124,431	$ 131,557	$ 139,325	$ 127,805	$ 523,118	$ 492,851	$ 443,388
USA
Disaggregation of Revenue [Line Items]
Revenue					$ 509,170	476,092	428,557
USA | Revenue | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenues					97.00%
Others
Disaggregation of Revenue [Line Items]
Revenue					$ 13,948	16,759	14,831
Onshore (United States)
Disaggregation of Revenue [Line Items]
Revenue					145,401	167,925	168,475
Offshore (Philippines, Pakistan)
Disaggregation of Revenue [Line Items]
Revenue					221,913	186,902	163,865
Nearshore (Jamaica, Nicaragua, Honduras)
Disaggregation of Revenue [Line Items]
Revenue					$ 155,804	$ 138,024	$ 111,048