Leases - Narrative (Details) ft² in Thousands, $ in Thousands	Dec. 31, 2020 USD ($) ft²	Jun. 30, 2020 USD ($) operatingLease lease_renew_option	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lessee, number of operating leases, noncurrent | operatingLease		45
Lessee, number of total operating leases, noncurrent | operatingLease		36
Lessee, operating lease, number of options to renew | lease_renew_option		1
Operating lease right-of-use assets		$ 30,447	$ 32,539
Operating lease liabilities		$ 33,803	$ 35,525
Forecast | Corporate headquarters
Lessee, Lease, Description [Line Items]
Net rentable area (square feet) | ft²	52
Operating lease right-of-use assets	$ 29,000
Operating lease liabilities	$ 30,000
Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract		1 year
Lessee, operating lease, renewal term		20 years
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term of contract		35 years