Revenue recognition - Contract assets and liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Revenue from Contract with Customer [Abstract]
Contract assets, current (included within Prepaid expenses and other)	$ 136,814	$ 123,705
Contract assets, noncurrent (included within Investments and other assets)	21,063	23,708
Total contract assets	157,877	147,413
Contract liabilities, current (included within Other accrued liabilities)	(183,868)	(244,799)
Contract liabilities, noncurrent (included within Other liabilities)	(77,957)	(78,239)
Total contract liabilities	(261,825)	(323,038)
Net contract liabilities	$ (103,948)	$ (175,625)