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Leases - Components of Leases in the Balance Sheet (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Jan. 01, 2019
--- | --- | --- | ---
Assets: |  |  |
Operating lease right-of-use assets | $ 256,845 | $ 284,369 | $ 301,100
Finance lease assets | 2,370 | 1,043 |
Total lease assets | 259,215 | 285,412 |
Current: |  |  |
Operating | 85,134 | 92,475 |
Finance | 846 | 440 |
Non-current: |  |  |
Operating | 178,822 | 196,521 |
Finance | 1,382 | 517 |
Total lease liabilities | $ 266,184 | $ 289,953 |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + 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 Amount, after accumulated amortization, of right-of-use asset from finance 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=121603541&loc=SL77918627-209977 + Details
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