GOODWILL AND OTHER INTANGIBLE ASSETS, Intangible Assets (Details) - USD ($) $ in Thousands		3 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Sep. 30, 2018
Finite-Lived Intangible Assets, Net [Abstract]
Total other intangible assets subject to amortization		$ 884,489		$ 85,163
Accumulated amortization		60,439		51,131
Indefinite-lived Intangible Assets [Abstract]
Total other intangible assets not subject to amortization		47,170		1,170
Total other intangible assets,		931,659		86,333
Other intangible assets [Abstract]
Intangible assets acquired during the period		844,800
Amortization expense		9,356	$ 1,973
Estimated future amortization expense [Abstract]
Remainder of 2019		50,820
2020		87,931
2021		87,228
2022		79,817
2023		67,658
Other Indefinite-lived Intangibles [Member]
Indefinite-lived Intangible Assets [Abstract]
Total other intangible assets not subject to amortization	[1]	47,170		1,170
Product Technology, Trade Secrets and Know-How [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total other intangible assets subject to amortization		134,335		48,825
Accumulated amortization		27,684		25,305
Acquired Patents and Licenses [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Total other intangible assets subject to amortization		10,570		8,270
Accumulated amortization		8,274		8,252
Customer Relationships, Distribution Rights and Other
Finite-Lived Intangible Assets, Net [Abstract]
Total other intangible assets subject to amortization		739,584		28,068
Accumulated amortization		$ 24,481		$ 17,574

[1] Other indefinite-lived intangible assets not subject to amortization consist primarily of trade names.