GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Sep. 30, 2018

GOODWILL AND OTHER INTANGIBLE ASSETS [Abstract]

Components of Other Intangible Assets

The components of other intangible assets are as follows:

	September 30, 2018				September 30, 2017
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Other intangible assets subject to amortization:
Product technology	$	46,275	$	22,755	$	42,287	$	17,604
Acquired patents and licenses		8,270		8,252		8,270		8,241
Trade secrets and know-how		2,550		2,550		2,550		2,550
Customer relationships, distribution rights and other		28,068		17,574		28,229		15,421
Total other intangible assets subject to amortization		85,163		51,131		81,336		43,816
Other intangible assets not subject to amortization:
In-process technology		-				4,000
Other indefinite-lived intangibles*		1,170				1,190
Total other intangible assets not subject to amortization		1,170				5,190
Total other intangible assets	$	86,333	$	51,131	$	86,526	$	43,816

* Other indefinite-lived intangibles not subject to amortization primarily consist of trade names.

During the first quarter of fiscal 2018, development of our in-process technology was completed, and we reclassified $4,000 to product technology under other intangible assets subject to amortization.

Estimated Future Amortization Expense

Amortization expense was $7,495, $7,795 and $8,176 for fiscal 2018, 2017 and 2016, respectively.  Estimated future amortization expense of intangible assets as of September 30, 2018 for the five succeeding fiscal years is as follows:

Fiscal Year	Estimated Amortization Expense
2019	$	7,119
2020		7,115
2021		7,108
2022		7,108
2023		1,717