Leases - Supplemental Cash Flow Disclosures (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($)
Supplemental Cash Flow Information [Abstract]
Operating lease payments	$ 12,798
Right-of-Use asset obtained in exchange for operating lease liability	36,984
Leasehold improvements received as lease incentive, non-cash investing activity	$ 2,500