LEGAL PROCEEDINGS - Antitrust (Details)	3 Months Ended
Oct. 31, 2019 case	Dec. 31, 2018 plantiff
Generic Pharmaceuticals Pricing Antitrust Litigation
Loss Contingencies [Line Items]
Number of plaintiffs, filed amended complaint \| plantiff		3
Glumetza Antitrust Litigation \| Subsequent Event
Loss Contingencies [Line Items]
Number of putative antitrust class actions filed \| case	6

The total number of new claims filed pertaining to a loss contingency during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration