Business realignment and acquisition integration charges - Business segment information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021 USD ($) employee	Dec. 31, 2020 USD ($) employee	Dec. 31, 2021 USD ($) employee	Dec. 31, 2020 USD ($) employee
Corporate, Non-Segment
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 0	$ 184	$ 0	$ 798
Number of positions eliminated (employees) | employee	0	5	0	18
Segment Reconciling Items
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 0	$ 661	$ 0	$ 1,225
Diversified Industrial | Operating Segments
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 3,047	$ 16,536	$ 6,064	$ 27,108
Number of positions eliminated (employees) | employee	48	292	83	676
Aerospace Systems | Operating Segments
Restructuring Cost and Reserve [Line Items]
Business realignment charges	$ 598	$ 1,386	$ 595	$ 5,337
Number of positions eliminated (employees) | employee	5	45	5	285