Business realignment and acquisition integration charges - Business segment information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023 USD ($) employee	Mar. 31, 2022 USD ($) employee	Mar. 31, 2023 USD ($) employee	Mar. 31, 2022 USD ($) employee
Segment Reconciling Items
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 0	$ 63	$ 0	$ 63
Diversified Industrial | Operating Segments
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 8,075	$ 2,771	$ 14,464	$ 8,835
Number of positions eliminated (employees) | employee	282	50	499	133
Aerospace Systems | Operating Segments
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 166	$ 318	$ 3,016	$ 913
Number of positions eliminated (employees) | employee	14	4	30	9