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Interest expense | 12 Months Ended
--- | ---
Dec. 31, 2014
Interest Expense [Abstract] |
Interest expense | Interest expense
Year ended December 31, |  | 2014 |  |  | 2013 |
Interest on capital lease obligations |  | $ | 3,103 |  |  | $ | 2,716 |
Amortization of deferred financing costs (note 11(c)) |  | 1,594 |  |  | 4,326 |
Interest on Credit Facility |  | 1,268 |  |  | 2,424 |
Interest on Series 1 Debentures |  | 6,168 |  |  | 12,507 |
Interest on long term debt |  | $ | 12,133 |  |  | $ | 21,973 |
Other interest expense (income) |  | 102 |  |  | (276 | )
|  | $ | 12,235 |  |  | $ | 21,697 |

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