ACQUISITION AND RELATED PARTY ITEMS - Unaudited Pro Forma Financial Information (Details) - Scil Animal Care Company $ in Thousands	9 Months Ended
Sep. 30, 2020 USD ($)
Business Acquisition [Line Items]
Revenue, net	$ 151,552
Net (loss) income before equity in losses of unconsolidated affiliates	$ (17,733)

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(3)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Balance Type:	credit
Period Type:	duration