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ACCOUNTING POLICIES (Lease - ASC Topic 842) (Details) - USD ($) $ in Thousands | Jan. 01, 2019 | Dec. 31, 2019
--- | --- | ---
Assets and liabilities |  |
Lease, Practical Expedients, Package | true |
Operating right-of-use assets |  | $ 68,470
Lease liability |  | $ 72,542
ASC Topic 842, Leases |  |
Assets and liabilities |  |
Change in Accounting Principle, Accounting Standards Update, Adopted | true |
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected | Modified Retrospective |
ASC Topic 842, Leases | Adjustment |  |
Assets and liabilities |  |
Operating right-of-use assets | $ 58,700 |
Lease liability | $ 58,700 |

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- Definition Indicates (true false) whether practical expedients are elected for not reassessing whether any expired or existing contract is or contains lease, lease classification for expired or existing lease, and initial direct cost for any existing lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 10 -Section 65 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + 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=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + 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 (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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