XML 134 R96.htm IDEA: XBRL DOCUMENT v3.8.0.1
Summary of Operating Segments (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Disclosure of operating segments [Line Items]      
Revenue $ 1,321,224 $ 1,003,233  
Operating loss (232,057) (308,586)  
Depreciation and amortization 377,746 391,659  
Impairment of property, plant and equipment 15,313    
Total assets 3,892,931 4,324,214  
Goodwill 205,167 207,399 $ 208,479
All Other Segments [Member]      
Disclosure of operating segments [Line Items]      
Revenue 1,321,224 1,003,233  
Operating loss (88,078) (155,979)  
Depreciation and amortization 377,746 391,659  
Impairment of property, plant and equipment 15,313    
Total assets 3,892,931 4,324,214  
Goodwill 205,167 207,399  
Capital expenditures 98,002 203,472  
Contract Drilling Services [Member] | All Other Segments [Member]      
Disclosure of operating segments [Line Items]      
Revenue 1,173,930 907,821  
Operating loss (6,930) (51,354)  
Depreciation and amortization 334,587 348,005  
Impairment of property, plant and equipment 15,313    
Total assets 3,491,393 3,914,604  
Goodwill 205,167 207,399  
Capital expenditures 69,076 196,013  
Completion and Production Services [Member] | All Other Segments [Member]      
Disclosure of operating segments [Line Items]      
Revenue 154,146 100,049  
Operating loss (17,750) (25,316)  
Depreciation and amortization 29,638 29,272  
Total assets 209,353 217,064  
Capital expenditures 4,509 1,204  
Corporate and Other [Member] | All Other Segments [Member]      
Disclosure of operating segments [Line Items]      
Operating loss (63,398) (79,309)  
Depreciation and amortization 13,521 14,382  
Total assets 192,185 192,546  
Capital expenditures 24,417 6,255  
Inter- Segment Eliminations [Member]      
Disclosure of operating segments [Line Items]      
Revenue (16,567) (10,629)  
Inter- Segment Eliminations [Member] | All Other Segments [Member]      
Disclosure of operating segments [Line Items]      
Revenue $ (6,852) $ (4,637)