Business realignment charges - Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015 employee	Mar. 31, 2014 employee	Mar. 31, 2015 employee	Mar. 31, 2014 employee
Industrial segment
Realignment charges
Realignment charges	$ 7,203	$ 59,582	$ 22,136	$ 83,420
Realignment charges, number of positions eliminated	176	572	350	1,154
Aerospace Segment
Realignment charges
Realignment charges	563	299	563	925
Realignment charges, number of positions eliminated	21	17	21	44
Other Expense
Realignment charges
Realignment charges	$ 484		$ 2,399	$ 1,331