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INCOME TAXES (Unrecognized Tax Benefits) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Unrecognized tax benefits at beginning of year | $ 3,159,000 | $ 5,121,000 | $ 1,738,000
Additions to current year tax positions | 0 | 0 | 1,457,000
Reductions to prior year tax positions |  | (625,000) |
Additions to prior year tax positions | 3,354,000 |  | 2,031,000
Expirations | (209,000) | (1,115,000) | (231,000)
Foreign currency translation | 110,000 | (222,000) | 126,000
Unrecognized tax benefits at end of year | $ 6,414,000 | $ 3,159,000 | $ 5,121,000

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- Definition 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 -Paragraph 10B -URI http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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