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Leases (Additional Information) (Detail)
$ in Thousands
 12 Months Ended
Jun. 30, 2020
USD ($)
facility
location
lease
Sep. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Lessee, Lease, Description [Line Items]      
Option to terminate lease true    
Option to extend lease true    
Extension term 5 years    
Number of facilities owned by lessor | facility 4    
Number of operating lease locations the entity has agreements to sublease either a portion or the full leased space | location 22    
Number of leases yet to commence | lease 1    
Operating Lease, Right-of-Use Asset $ 174,935   $ 0
Operating Lease, Liability $ 227,676    
Operating Lease, Lease Not yet Commenced, Contract One [Member] | Forecast [Member]      
Lessee, Lease, Description [Line Items]      
Lease term on property lease that has not yet commenced   10 years  
Operating Lease, Right-of-Use Asset   $ 10,100  
Operating Lease, Liability   $ 10,100