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Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Leases [Abstract] |  |  |
Other assets (net of lease impairment of $1,325) | $ 16,277 | $ 17,900 |
Operating Lease, Right-Of-Use Asset, Impairment | 1,325 |  |
Other current liabilities | 6,810 |  |
Other long-term liabilities | 11,133 |  |
Total operating lease liabilities | 17,943 | $ 17,900 |
Property, plant and equipment, gross | 1,131 |  |
Accumulated depreciation | (302) |  |
Property, plant and equipment, net | 829 |  |
Current portion of long-term debt | 299 |  |
Long-term debt | 244 |  |
Total finance lease liabilities | $ 543 |  | $ 0
Weighted average remaining lease term (in years) |  |  |
Operating leases | 3 years 9 months 18 days |  |
Finance leases | 3 years 9 months 29 days |  |
Weighted average discount rate |  |  |
Operating leases | 4.41% |  |
Finance leases | 4.90% |  |

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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=77888426&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=77888419&loc=SL77918627-209977 + Details
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