SHARE-BASED COMPENSATION PLANS (Details) $ in Thousands	3 Months Ended
Dec. 31, 2018 USD ($) Installment	Dec. 31, 2017 USD ($)
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Total share-based compensation expense	$ 8,170	$ 5,881
Tax benefit	(1,691)	(1,241)
Total share-based compensation expense, net of tax	6,479	4,640
Share-based Compensation	8,170	5,881
Cost of Goods Sold [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Total share-based compensation expense	1,055	788
Research, Development and Technical [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Total share-based compensation expense	901	529
Selling, general, and administrative [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Total share-based compensation expense	6,214	$ 4,564
Stock Option and Restricted Stock [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Share-based Compensation	$ 3,253
Replacement Award [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Number of equal installments \| Installment	3
Period of termination to accelerate vest awards to shares	18 months
Percentage of accelerate vest awards to number of shares	150.00%

Percentage of accelerate in vest of awards to number of shares upon termination.

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- Definition

Period, If the recipient is terminated without cause or resigns with good reason for award will accelerate vest in a number of shares.

+ References

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Number of vesting installments for awards to be vested from grant date.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901

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-Name Accounting Standards Codification
-Topic 718
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-Section S99
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The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

No definition available.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 10
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