INCOME TAXES (Changes in Unrecognized Income Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
INCOME TAXES [Abstract]
Unrecognized tax benefits as of January 1	$ 5,442	$ 3,661	$ 11,643
Increases for tax positions related to Prior years	353	273	0
Increases for tax positions related to Current year	1,884	3,224	698
Decreases for tax positions related to Prior years	0	0	(655)
Expiration of applicable statute of limitations	(862)	(1,716)	(8,025)
Unrecognized tax benefits as of December 31	$ 6,817	$ 5,442	$ 3,661

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Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 45
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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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