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INCOME TAXES - Summary of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Unrecognized tax benefits |  |  |
Beginning balance-gross unrecognized tax benefits (UTB’s) | $ 3,244 | $ 3,404 | $ 15,507
Tax credit expiration |  | (160) | (12,103)
Ending balance—gross unrecognized tax benefits (“UTB”s) | 3,244 | 3,244 | 3,404
UTB’s as a credit in deferred taxes | (2,347) | (2,347) | (2,347)
Federal benefit of state taxes | (356) | (356) | (516)
Unrecognized tax benefits that would impact the annual effective tax rate if recognized | $ 541 | $ 541 | $ 541

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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 https://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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- Definition Represents the portion of unrecognized tax benefits, which is related to the federal tax benefit of state income tax items. + References No definition available. + Details
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