Business realignment and acquisition integration charges - Business segment information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2024 USD ($) employee	Mar. 31, 2023 USD ($) employee	Mar. 31, 2024 USD ($) employee	Mar. 31, 2023 USD ($) employee
Other income, net
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 1,527	$ 0	$ 2,719	$ 0
Diversified Industrial | Operating Segments
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 6,953	$ 8,075	$ 32,877	$ 14,464
Number of positions eliminated (employees) | employee	143	282	658	499
Aerospace Systems | Operating Segments
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ (12)	$ 166	$ 318	$ 3,016
Number of positions eliminated (employees) | employee	(1)	14	1	30