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ACCOUNTS RECEIVABLE (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2016
Receivables [Abstract]
Accounts receivable	$ 196,796	$ 188,952
Allowance for doubtful accounts	(3,782)	(3,714)	$ (3,404)	$ (2,974)
Accounts receivable, net	$ 193,014	$ 185,238

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- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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