RECEIVABLES - Allowance for Credit Losses (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2020	Jan. 01, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	[1]	$ (11,400)
Provision for expected credit losses		(1,160)
Write-offs		2,841
Foreign exchange effects		86
Balance at end of period		(9,633)
Allowance for credit loss		$ 9,633
Cumulative Effect, Period of Adoption, Adjustment
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit loss			$ 1,400

[1] Includes $1.4 million due to the initial adoption of ASC 326 as of January 1, 2020.