Revenue recognition - Revenue by geographic region (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 4,903,984	$ 4,847,488
North America
Disaggregation of Revenue [Line Items]
Revenues from contracts	3,333,660	3,293,091
Europe
Disaggregation of Revenue [Line Items]
Revenues from contracts	934,580	941,715
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues from contracts	579,911	554,405
Latin America
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 55,833	$ 58,277