ACCOUNTS RECEIVABLE (SCHEDULE OF CHANGE IN ALLOWANCE) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS [Abstract]
Balance, beginning balance	$ 5,406	$ 5,940	$ 5,409	$ 5,067
Provision for credit losses	1,363	(189)	1,561	(34)
Uncollectible receivables written-off	(890)		(1,110)
Uncollectible receivables written-off recoveries		302		41
Effect of foreign currency	(24)	(7)	(5)	(16)
Acquisition credit losses				988
Balance, ending balance	$ 5,855	$ 6,046	$ 5,855	$ 6,046

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Allowance for credit losses or doubtful accounts related to business acquisitions.

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No definition available.

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- Definition

Impact of foreign currency related to the rollforward of allowance for doubtful accounts between periods.

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No definition available.

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Amount of direct write-downs of accounts receivable charged against the allowance or net of accounts receivable recoveries.

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Amount of direct write-downs of accounts receivable charged against the allowance.

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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
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-Publisher FASB
-Name Accounting Standards Codification
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