Goodwill and intangible assets - Intangible assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2018	Jun. 30, 2017
Finite-Lived Intangible Asset
Gross Carrying Amount	$ 3,393,902	$ 3,374,723
Accumulated Amortization	1,259,243	1,067,239
Intangible amortization expense	167,317
Estimated amortization expense, year ending June 30, 2018	215,358
Estimated amortization expense, year ending June 30, 2019	205,011
Estimated amortization expense, year ending June 30, 2020	196,150
Estimated amortization expense, year ending June 30, 2021	187,346
Estimated amortization expense, year ending June 30, 2022	151,183
Patents
Finite-Lived Intangible Asset
Gross Carrying Amount	269,935	254,049
Accumulated Amortization	116,041	100,860
Trademarks
Finite-Lived Intangible Asset
Gross Carrying Amount	562,788	553,691
Accumulated Amortization	226,902	200,413
Customer lists and other
Finite-Lived Intangible Asset
Gross Carrying Amount	2,561,179	2,566,983
Accumulated Amortization	$ 916,300	$ 765,966