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Restricted cash | 12 Months Ended
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Dec. 31, 2019
Statement of cash flows [abstract] |
Restricted cash | 7. Restricted cash
| December 31, 2019 |  |  | December 31, 2018 |
Current: |  |  |
Restricted cash deposits - Greece | $ | 20 |  |  | $ | 296 |
| $ | 20 |  |  | $ | 296 |
Non-current: |  |  |
Restricted cash related to Letter of Guarantee - Greece | $ | — |  |  | $ | 10,670 |
Environmental guarantee deposits and other | 3,080 |  |  | 2,779 |
| $ | 3,080 |  |  | $ | 13,449 |
Non-financial letters of credit to secure obligations in connection with the Company's operations as required by the Ministry of Environment and Energy and Climate Change ("MEECC") in Greece reduce the amount available under the senior secured revolving credit facility by corresponding amounts. Concurrent with the establishment of the senior secured credit facility in 2019, $10.7 million of restricted cash was released, which was previously held to secure these letters of credit.

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- Definition The disclosure of restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_10_e&doctype=Standard -URIDate 2018-03-16 + Details
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- References No definition available. + Details
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