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Other information | 12 Months Ended
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Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract] |
Other information | Other information a) Supplemental cash flow information
Year ended December 31, |  | 2013 |  |  | 2012 |
Cash paid during the year for: |  |  |  |
Interest |  | $ | 25,528 |  |  | $ | 29,625 |
Income taxes |  | 91 |  |  | 5,072 |
Cash received during the year for: |  |  |  |
Interest |  | 256 |  |  | 8 |
Income taxes |  | 3,797 |  |  | 97 |
Year ended December 31, |  | 2013 |  |  | 2012 |
Non-cash transactions: |  |  |  |
Acquisition of property, plant and equipment for continuing operations by means of capital leases |  | $ | 13,812 |  |  | $ | 47,297 |
Additions to assets held for sale |  | (5,123 | ) |  | (10,444 | )
Net change in accounts payable related to purchase of property, plant and equipment |  | 2,931 |  |  | (2,198 | )
Net change in current portion of equipment lease liabilities included in accrued liabilities related to the purchase of property, plant and equipment |  | (159 | ) |  | (1,574 | )
Net change in long term portion of equipment lease liabilities related to the purchase of property, plant and equipment |  | 1,702 |  |  | (1,702 | )
Net change in property, plant and equipment resulting from reclassification to inventory |  | — |  |  | 2,219 |
Net change in accrued liabilities related to current portion of RSU liability |  | 1,430 |  |  | (1,639 | )
Net change in accrued liabilities related to current portion of DDSU liability |  | (253 | ) |  | 253 |
b) Net change in non-cash working capital
Year ended December 31, |  | 2013 |  |  | 2012 |
Operating activities: |  |  |  |
Accounts receivable, net |  | $ | 29,765 |  |  | $ | 70,577 |
Unbilled revenue |  | 30,275 |  |  | 56,625 |
Inventories |  | (644 | ) |  | 3,416 |
Prepaid expenses and deposits |  | 634 |  |  | 5,050 |
Accounts payable |  | (31,847 | ) |  | (35,292 | )
Accrued liabilities |  | (1,603 | ) |  | (11,534 | )
Long term portion of liabilities related to equipment leases |  | (209 | ) |  | (1,721 | )
Billings in excess of costs incurred and estimated earnings on uncompleted contracts |  | (872 | ) |  | (2,160 | )
|  | $ | 25,499 |  |  | $ | 84,961 |

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- Definition The entire disclosures of supplemental information, including descriptions and amounts, related to the balance sheet, income statement, and/or cash flow statement. + References No definition available. + Details
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- Details
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