SUBSEQUENT EVENTS	9 Months Ended
Jun. 30, 2021
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS	14. SUBSEQUENT EVENTS On May 20, 2021, the Company announced it had entered into an agreement to acquire I.S.A. Altanova Group S.R.L. (Altanova), a supplier in the field of advanced condition assessment technologies including partial discharge measurement and analysis, as well as test instruments for electrical apparatus. Altanova, which will become part of the USG operating segment, had annual sales of approximately $30 million in 2020. As of June 30, 2021, the Company had 30 million Euros held in an escrow account related to this transaction which will be used to partially fund the acquisition. The transaction was subject to Italian regulatory approval, which was obtained and the transaction closed on July 29, 2021. On August 9, 2021, the Company announced it had acquired the assets of Phenix Technologies, Inc. (Phenix), a manufacturer of stationary and portable high voltage, high current, high power test systems, components and solutions supporting the electric utility industry. Phenix, which will become part of the USG operating segment, had annual sales of approximately $25 million in 2020.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration