Leases - Lease expense and supplemental cash flow information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease expense	$ 60,411	$ 46,026	$ 48,171
Finance lease cost:
Amortization of lease assets	5,604	1,861	1,576
Interest on lease liabilities	4,383	390	455
Short-term lease cost	7,577	7,041	7,674
Variable lease cost	5,747	5,849	5,835
Total lease cost	83,722	61,167	63,711
Operating cash outflows - payments on operating leases	57,717	45,371	47,080
Operating cash outflows - interest payments on finance leases	4,383	390	455
Financing cash outflows - payments on finance lease obligations	5,141	1,992	1,713
Right-of-use assets obtained in exchange for operating lease obligations	45,365	50,925	41,637
Right-of-use assets obtained in exchange for finance lease obligations	$ 1,340	$ 0	$ 3,834