Business realignment and acquisition integration charges - Income statement location (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Cost of sales
Restructuring Cost and Reserve [Line Items]
Realignment charges and acquisition integration costs	$ 10,201	$ 2,804	$ 21,225	$ 10,872
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Realignment charges and acquisition integration costs	3,203	1,795	6,738	9,667
Other (income), net
Restructuring Cost and Reserve [Line Items]
Realignment charges and acquisition integration costs	$ 50	$ 0	$ 50	$ 275