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Segment Information - Additional Information (Detail) (USD $)
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3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
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Jun. 30, 2013
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Jun. 30, 2012
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Jun. 30, 2013
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Jun. 30, 2012
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Dec. 31, 2012
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| Segment Reporting Information [Line Items] | |||||
| Property and equipment | $ 1,103,212,000 | $ 1,103,212,000 | $ 1,045,983,000 | ||
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Canada [Member]
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| Segment Reporting Information [Line Items] | |||||
| Percentage of total revenue which were earned in Canada | 96.00% | 95.00% | 97.00% | 96.00% | |
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Foreign Operations [Member]
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| Segment Reporting Information [Line Items] | |||||
| Revenues from foreign operations | 208,400,000 | 155,800,000 | 505,800,000 | 405,600,000 | |
| Property and equipment | $ 169,400,000 | $ 169,400,000 | $ 151,900,000 | ||
| X | ||||||||||
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- Definition
Percentage of significant concentrations of revenue earned in particular countries. No definition available.
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| X | ||||||||||
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- Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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