Leases - Summary of Lease Costs and Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Related Party Transaction [Line Items]
Operating lease expense (including expense for lease agreements with related parties of $1,421 and $0 for the years ended June 30, 2020 and 2019, respectively)	$ 6,993
Cash payments for operating leases (including payments to related parties of $1,443 and $0 for the years ended June 30, 2020 and 2019, respectively)	6,411
New operating lease assets obtained in exchange for operating lease liabilities	15,229
Affiliated
Related Party Transaction [Line Items]
Operating lease expense (including expense for lease agreements with related parties of $1,421 and $0 for the years ended June 30, 2020 and 2019, respectively)	1,421	$ 0
Cash payments for operating leases (including payments to related parties of $1,443 and $0 for the years ended June 30, 2020 and 2019, respectively)	$ 1,443	$ 0