REVENUES (Contract Balances) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Receivables	$ 644,738	$ 606,952
Contract assets (unbilled receivables)	56,326	54,794
Contract liabilities (deferred revenue)	$ 73,370	$ 61,843

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

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Balance Type:	debit
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