DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Gains (Losses) on Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedge (cross-currency swap), net of tax	$ 1,715	$ (3,891)	$ 3,888	$ (986)
Gains and losses from hedging instruments recognized in AOCI	2,056	(3,664)	5,092	(3,645)
Interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Cash flow hedge (interest rate swap), net of tax	341	227	1,204	(2,659)
Cross-currency swap
Derivative Instruments, Gain (Loss) [Line Items]
Net investment hedge (cross-currency swap), net of tax	$ 1,715	$ (3,891)	$ 3,888	$ (986)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CCC
-Subparagraph (a)
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