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LEASES - Description (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) lease | Dec. 31, 2019 USD ($)
LEASES |  |  |
Number of facility leases | lease |  | 388 |
Number of subleases | lease |  | 14 |
Number of finance leases | lease |  | 2 |
Number of lessor owned properties | lease |  | 2 |
Reduction in right- of-use assets | $ 5,700 | $ 5,700 |
Reduction in Lease liability | $ 5,700 | 5,700 |
Operating lease liabilities |  | 60,984 | $ 72,143
Variable Lease, Cost |  | 1,100 | 1,600
Property tax expense |  | $ 800 | $ 800
Minimum |  |  |
LEASES |  |  |
Lessee operating lease renewal term |  | 1 year |
Maximum |  |  |
LEASES |  |  |
Lessee operating lease renewal term |  | 5 years |

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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 Term of lessee's operating lease renewal, 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 Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. + References Reference 1: 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 A tax based on the assessed value of real estate by the local government. The tax is usually based on the value of property (including the land). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6419918&loc=d3e35301-107843 + Details
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- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: 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 + Details
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- Definition Reduction in Lease liability. + References No definition available. + Details
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- Definition Reduction in right- of-use assets. + References No definition available. + Details
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- Definition Number of finance leases. + References No definition available. + Details
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- Definition Number of lessor owned properties. + References No definition available. + Details
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- Definition Number of owned operating leases. + References No definition available. + Details
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- Definition Number of subleases + References No definition available. + Details
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