Revenue recognition - Revenues by segment and primary market (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 4,847,488	$ 4,232,775
Aerospace Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	1,228,960	746,002
Commercial original equipment manufacturer ("OEM") | Aerospace Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	418,616	264,310
Commercial aftermarket | Aerospace Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	391,206	204,640
Military OEM | Aerospace Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	263,065	170,671
Military aftermarket | Aerospace Systems
Disaggregation of Revenue [Line Items]
Revenues from contracts	$ 156,073	$ 106,381