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Interest expense, net | 12 Months Ended
--- | ---
Dec. 31, 2020
Interest Expense [Abstract] |
Interest expense, net | Interest expense, net
Year ended December 31, | 2020 |  | 2019
Credit facilities | $ | 8,189 |  |  | $ | 9,826 |
Convertible debentures | 3,299 |  |  | 4,318 |
Finance lease obligations | 3,184 |  |  | 3,691 |
Mortgages | 999 |  |  | 963 |
Promissory notes | 664 |  |  | 1,691 |
Financing obligations | 1,265 |  |  | 272 |
Amortization of deferred financing costs | 1,091 |  |  | 969 |
Interest expense | $ | 18,691 |  |  | $ | 21,730 |
Other interest income | (10) |  |  | (107) |
| $ | 18,681 |  |  | $ | 21,623 |

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