REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)

3 Months Ended

Dec. 31, 2018

REVENUE FROM CONTRACTS WITH CUSTOMERS [Abstract]

The following table shows revenue generated by product area during the three months ended December 31, 2018 and 2017:

	Three Months Ended December 31,
	2018		2017
Revenue:
Electronic Materials:
CMP Slurries	$	126,329	$	114,435
Electronic Chemicals		39,822		-
CMP Pads		24,466		18,879
Total Electronic Materials		190,617		133,314

Performance Materials		31,161		6,665

Total revenue	$	221,778	$	139,979

Reconciliation of Contract Balances

Reconciliation of Contract Liability Balances

The following table provides information about contract liability balances:

	December 31, 2018		October 1, 2018
Contract liabilities (current)	$	5,091	$	5,310
Contract liabilities (noncurrent)		1,446		1,239

Transaction Price Allocated to Remaining Performance Obligations

The table below discloses (1) the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period for contracts with an original duration of greater than one year and (2) when the Company expects to recognize this revenue.

	Less Than 1 Year				1-3 Years				3-5 Years				Total
Revenue expected to be recognized on contract liability amounts as of December 31, 2018		$	482			$	1,083			$	363			$	1,928