Leases - ROU assets and the related lease liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Jun. 30, 2020
Related Party Transaction [Line Items]
Operating lease ROU assets included in Other Assets	$ 31,842	$ 22,873
Operating lease ROU assets included in Other Assets	us-gaap:OtherAssetsNoncurrent	us-gaap:OtherAssetsNoncurrent
Current portion included in Accrued expenses and other current liabilities	$ 6,354	$ 6,439
Current portion included in Accrued expenses and other current liabilities	us-gaap:AccruedLiabilitiesCurrent	us-gaap:AccruedLiabilitiesCurrent
Non-current portion included in Other liabilities	$ 27,007	$ 17,276
Non-current portion included in Other liabilities	Other liabilities	Other liabilities
Total operating lease liabilities	$ 33,361	$ 23,715
Maximum
Related Party Transaction [Line Items]
Remaining non-cancelable lease terms	15 years
Minimum
Related Party Transaction [Line Items]
Remaining non-cancelable lease terms	1 year