Goodwill and intangible assets - Intangible assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2017	Jun. 30, 2017
Finite-Lived Intangible Asset
Gross Carrying Amount	$ 3,343,608	$ 3,374,723
Accumulated Amortization	1,128,311	1,067,239
Intangible amortization expense	54,469
Estimated amortization expense, year ending June 30, 2018	215,343
Estimated amortization expense, year ending June 30, 2019	204,987
Estimated amortization expense, year ending June 30, 2020	196,124
Estimated amortization expense, year ending June 30, 2021	187,321
Estimated amortization expense, year ending June 30, 2022	151,164
Patents
Finite-Lived Intangible Asset
Gross Carrying Amount	256,510	254,049
Accumulated Amortization	106,198	100,860
Trademarks
Finite-Lived Intangible Asset
Gross Carrying Amount	556,813	553,691
Accumulated Amortization	208,892	200,413
Customer lists and other
Finite-Lived Intangible Asset
Gross Carrying Amount	2,530,285	2,566,983
Accumulated Amortization	$ 813,221	$ 765,966