Business realignment charges - Segments (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016 USD ($) employee	Mar. 31, 2015 USD ($) employee	Mar. 31, 2016 USD ($) employee	Mar. 31, 2015 USD ($) employee
Diversified Industrial
Realignment charges
Realignment charges	$ 24,406	$ 7,203	$ 67,405	$ 22,136
Realignment charges, number of positions eliminated | employee	875	176	2,929	350
Aerospace Systems
Realignment charges
Realignment charges	$ 624	$ 563	$ 2,604	$ 563
Realignment charges, number of positions eliminated | employee	15	21	81	21
Corporate general and administrative
Realignment charges
Realignment charges	$ 2,049	$ 0	$ 2,129	$ 0
Realignment charges, number of positions eliminated | employee	50	0	52	0
Other expense (income)
Realignment charges
Realignment charges	$ 0	$ 484	$ 116	$ 2,399