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LEASES - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) tranche | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Lessee, Lease, Description [Line Items] |  |  |
Number of tranches | tranche | 4 |  |
Finance lease liability | $ 2,631 |  |
Operating lease cost | $ 3,105 | $ 3,181 | $ 3,917
Lessee, Operating Lease, Tranche One |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Discount rate | 3.45% |  |
Lessee, Operating Lease, Tranche One | Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 1 year |  |
Lessee, Operating Lease, Tranche One | Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 2 years |  |
Lessee, Operating Lease, Tranche Two |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Discount rate | 4.04% |  |
Lessee, Operating Lease, Tranche Two | Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 3 years |  |
Lessee, Operating Lease, Tranche Two | Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 4 years |  |
Lessee, Operating Lease, Tranche Three |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Discount rate | 4.38% |  |
Lessee, Operating Lease, Tranche Three | Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 5 years |  |
Lessee, Operating Lease, Tranche Three | Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 9 years |  |
Lessee, Operating Lease, Tranche Four |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Term of contract for operating leases | 10 years |  |
Discount rate | 5.10% |  |

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- Definition Lessee, Operating Lease, Number Of Tranches + References No definition available. + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Discount rate used by lessee to determine present value of operating lease payments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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