| Financial Instruments - Fair Value (Details) $ in Thousands | Jun. 30, 2020  USD ($) | 
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| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |
| Finance Lease, Liability | $ 5,945 | 
| Carrying Value | |
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | |
| Finance Lease, Liability | $ 5,626 | 
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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. No definition available. 
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Details 
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