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Accounts Receivable and Significant Clients - Revenue from Significant Clients (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Concentration Risk [Line Items]
Accounts receivable, net of allowance of $120 and $1,290	$ 86,364	$ 75,418
Client 1 \| Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of revenues	13.00%	12.00%	12.00%
Client 1 \| Accounts receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Accounts receivable, net of allowance of $120 and $1,290	$ 5,968	$ 9,966
Client 2 \| Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of revenues	7.00%	8.00%	12.00%
Client 2 \| Accounts receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Accounts receivable, net of allowance of $120 and $1,290	$ 13,807	$ 5,725
Client 3 \| Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of revenues	7.00%	7.00%	11.00%
Client 3 \| Accounts receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Accounts receivable, net of allowance of $120 and $1,290	$ 6,405	$ 4,369