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INCOME TAXES (Uncertain Tax Positions) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income taxes |  |  |
Reserve for uncertain tax positions | $ 0.9 | $ 1.0 |
Maximum |  |  |
Income taxes |  |  |
Reserve for uncertain tax positions |  |  | $ 0.1
Foreign and State Jurisdictions | Maximum |  |  |
Income taxes |  |  |
Interest paid on income tax obligations | 0.1 | 0.1 | 0.1
Foreign | Maximum |  |  |
Income taxes |  |  |
Income tax accrued interest | $ 0.1 |  |
Federal |  |  |
Income taxes |  |  |
Decrease in reserve, Expiration of statute of limitations |  |  | 0.7
Increase in reserve, Prior period tax positions |  | 0.9 |
Federal | Maximum |  |  |
Income taxes |  |  |
Reserve for uncertain tax positions |  | $ 0.1 | $ 0.1

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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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