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Note 16 - Income Tax (Tables) | 12 Months Ended
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Dec. 31, 2013
Income Tax Disclosure [Abstract] |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Income tax expense using combined statutory rate of 26.5% (2012 - 26.5%, 2011 - 28.3%) |  | $ | 18,622 |  |  | $ | 16,754 |  |  | $ | 9,351 |
Permanent differences |  |  | 4,125 |  |  |  | 3,327 |  |  |  | 4,434 |
Tax effect of flow through entities |  |  | (2,156 | ) |  |  | (3,663 | ) |  |  | (3,462 | )
Goodwill or other investment impairment charge |  |  | - |  |  |  | 676 |  |  |  | 874 |
Impact of changes in foreign exchange rates |  |  | (518 | ) |  |  | 1,546 |  |  |  | (679 | )
Adjustments to tax liabilities for prior periods |  |  | 925 |  |  |  | 721 |  |  |  | 762 |
Effects of changes in enacted tax rates |  |  | 250 |  |  |  | (14 | ) |  |  | 52 |
Changes in liability for unrecognized tax benefits |  |  | 181 |  |  |  | 352 |  |  |  | (342 | )
Stock-based compensation |  |  | 2,791 |  |  |  | 128 |  |  |  | (386 | )
Foreign, state and provincial tax rate differential |  |  | (4,285 | ) |  |  | (946 | ) |  |  | (6,728 | )
Tax on preferred shares |  |  | 880 |  |  |  | - |  |  |  | - |
Other taxes |  |  | 1,906 |  |  |  | 93 |  |  |  | 2,046 |
Change in valuation allowances |  |  | (97 | ) |  |  | 2,033 |  |  |  | (49,745 | )
Provision for (recovery of) income taxes as reported |  | $ | 22,624 |  |  | $ | 21,007 |  |  | $ | (43,823 | )
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Canada |  | $ | 1,977 |  |  | $ | 22,438 |  |  | $ | 33,331 |
United States |  |  | 4,613 |  |  |  | 9,811 |  |  |  | (20,662 | )
Australia |  |  | 33,061 |  |  |  | 25,800 |  |  |  | 21,791 |
Foreign |  |  | 30,613 |  |  |  | 5,175 |  |  |  | (1,358 | )
Total |  | $ | 70,264 |  |  | $ | 63,224 |  |  | $ | 33,102 |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Current |  |  |  |  |  |  |  |  |
Canada |  | $ | 11,137 |  |  | $ | 5,771 |  |  | $ | 4,630 |
United States |  |  | 3,008 |  |  |  | 18,139 |  |  |  | 8,839 |
Australia |  |  | 11,088 |  |  |  | 8,526 |  |  |  | 7,206 |
Foreign |  |  | 11,860 |  |  |  | 4,729 |  |  |  | 3,708 |
|  |  | 37,093 |  |  |  | 37,165 |  |  |  | 24,383 |
Deferred |  |  |  |  |  |  |  |  |  |  |  |
Canada |  |  | (7,627 | ) |  |  | 364 |  |  |  | (275 | )
United States |  |  | (2,435 | ) |  |  | (14,500 | ) |  |  | (67,279 | )
Australia |  |  | (1,079 | ) |  |  | (743 | ) |  |  | (729 | )
Foreign |  |  | (3,328 | ) |  |  | (1,279 | ) |  |  | 77 |
|  |  | (14,469 | ) |  |  | (16,158 | ) |  |  | (68,206 | )
Total |  | $ | 22,624 |  |  | $ | 21,007 |  |  | $ | (43,823 | )
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | 2013 |  |  | 2012 |
Deferred income tax assets |  |  |  |  |  |
Loss carry-forwards |  | $ | 91,957 |  |  | $ | 88,318 |
Expenses not currently deductible |  |  | 23,467 |  |  |  | 17,255 |
Stock-based compensation |  |  | 3,956 |  |  |  | 3,317 |
Basis differences of partnerships and other entities |  |  | 14,173 |  |  |  | 15,685 |
Allowance for doubtful accounts |  |  | 4,580 |  |  |  | 3,324 |
Inventory and other reserves |  |  | 2,554 |  |  |  | 1,611 |
|  |  | 140,687 |  |  |  | 129,510 |
Less: valuation allowance |  |  | (14,120 | ) |  |  | (11,911 | )
|  |  | 126,567 |  |  |  | 117,599 |
Deferred income tax liabilities |  |  |  |  |  |  |  |
Depreciation and amortization |  |  | 31,165 |  |  |  | 33,751 |
Unrealized foreign exchange gains |  |  | - |  |  |  | 932 |
Prepaid and other expenses deducted for tax purposes |  |  | 1,427 |  |  |  | 875 |
|  |  | 32,592 |  |  |  | 35,558 |
Net deferred income tax asset |  | $ | 93,975 |  |  | $ | 82,041 |
Summary of Operating Loss Carryforwards [Table Text Block] |
|  | Loss carry forward |  |  | Gross losses not recognized |  |  | Net |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Canada |  | $ | 72,526 |  |  | $ | 53,866 |  |  | $ | 2,438 |  |  | $ | 4,228 |  |  | $ | 70,088 |  |  | $ | 49,638 |
United States |  |  | 164,414 |  |  |  | 172,155 |  |  |  | 4,099 |  |  |  | 4,098 |  |  |  | 160,315 |  |  |  | 168,057 |
Australia |  |  | 304 |  |  |  | 889 |  |  |  | - |  |  |  | - |  |  |  | 304 |  |  |  | 889 |
Foreign |  |  | 46,901 |  |  |  | 43,578 |  |  |  | 41,412 |  |  |  | 40,413 |  |  |  | 5,489 |  |  |  | 3,165 |
|  | Loss carry forward |  |  | Gross losses not recognized |  |  | Net |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Canada |  | $ | 939 |  |  | $ | 1,224 |  |  | $ | 939 |  |  | $ | 1,224 |  |  | $ | - |  |  | $ | - |
United States |  |  | 4,197 |  |  |  | 1,068 |  |  |  | 4,197 |  |  |  | 1,068 |  |  |  | - |  |  |  | - |
Australia |  |  | 8,123 |  |  |  | 9,455 |  |  |  | 8,123 |  |  |  | 9,455 |  |  |  | - |  |  |  | - |
Summary of Income Tax Contingencies [Table Text Block] |
Balance, December 31, 2011 |  | $ | 7,602 |
Increases based on tax positions related to 2012 |  |  | 1,093 |
Reduction for lapses in applicable statutes of limitations |  |  | (781) |
Balance, December 31, 2012 |  |  | 7,914 |
Increases based on tax positions related to 2013 |  |  | 384 |
Increases for tax positions of prior periods |  |  | 562 |
Reduction for lapses in applicable statutes of limitations |  |  | (840) |
Balance, December 31, 2013 |  | $ | 8,020 |

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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