XML 93 R65.htm IDEA: XBRL DOCUMENT v3.22.0.1
Change in Property, Plant and Equipment (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance $ 2,472,683  
Ending Balance 2,258,391 $ 2,472,683
Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 6,563,206 6,670,979
Additions 75,941 61,535
Disposals (108,797) (92,524)
Effect of foreign currency exchange differences (26,629) (76,784)
Ending Balance 6,503,721 6,563,206
Accumulated Depreciation [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance (4,090,523) (3,921,516)
Depreciation expense 272,036 304,934
Disposals 102,287 86,076
Effect of foreign currency exchange differences 14,942 49,851
Ending Balance (4,245,330) (4,090,523)
Rig Equipment [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 2,269,794  
Ending Balance 2,074,185 2,269,794
Rig Equipment [Member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 6,025,767 6,109,383
Additions 15,288 10,375
Disposals (100,004) (78,028)
Reclassifications 47,080 55,322
Effect of foreign currency exchange differences (19,815) (71,285)
Ending Balance 5,968,316 6,025,767
Rig Equipment [Member] | Accumulated Depreciation [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance (3,755,973) (3,598,878)
Depreciation expense 248,564 277,799
Disposals 95,977 73,354
Effect of foreign currency exchange differences 14,429 47,350
Ending Balance (3,894,131) (3,755,973)
Rental Equipment [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 27,359  
Ending Balance 20,597 27,359
Rental Equipment [Member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 105,024 110,307
Disposals (1,822) (4,664)
Effect of foreign currency exchange differences (21) (619)
Ending Balance 103,181 105,024
Rental Equipment [Member] | Accumulated Depreciation [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance (77,665) (75,870)
Depreciation expense 6,741 7,044
Disposals 1,804 4,631
Effect of foreign currency exchange differences 18 618
Ending Balance (82,584) (77,665)
Other Equipment [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 27,318  
Ending Balance 17,088 27,318
Other Equipment [Member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 181,004 185,319
Additions 254 350
Disposals (2,300) (3,990)
Reclassifications 188 521
Effect of foreign currency exchange differences (429) (1,196)
Ending Balance 178,717 181,004
Other Equipment [Member] | Accumulated Depreciation [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance (153,686) (146,715)
Depreciation expense 10,410 12,013
Disposals 2,194 3,990
Effect of foreign currency exchange differences 273 1,052
Ending Balance (161,629) (153,686)
Vehicles [member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 4,978  
Ending Balance 3,204 4,978
Vehicles [member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 35,350 38,506
Disposals (543) (2,789)
Effect of foreign currency exchange differences (127) (367)
Ending Balance 34,680 35,350
Vehicles [member] | Accumulated Depreciation [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance (30,372) (30,710)
Depreciation expense 1,739 2,790
Disposals 543 2,782
Effect of foreign currency exchange differences 92 346
Ending Balance (31,476) (30,372)
Buildings [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 49,451  
Ending Balance 44,009 49,451
Buildings [Member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 122,278 126,177
Disposals (2,454) (3,053)
Effect of foreign currency exchange differences (305) (846)
Ending Balance 119,519 122,278
Buildings [Member] | Accumulated Depreciation [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance (72,827) (69,343)
Depreciation expense 4,582 5,288
Disposals 1,769 1,319
Effect of foreign currency exchange differences 130 485
Ending Balance (75,510) (72,827)
Assets Under Construction [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 60,572  
Ending Balance 67,884 60,572
Assets Under Construction [Member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 60,572 67,740
Additions 60,399 50,810
Reclassifications (47,268) (55,843)
Effect of foreign currency exchange differences (5,819) (2,135)
Ending Balance 67,884 60,572
Land [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 33,211  
Ending Balance 31,424 33,211
Land [Member] | Gross [Member]    
Disclosure of detailed information about property, plant and equipment [Line Items]    
Beginning Balance 33,211 33,547
Disposals (1,674)  
Effect of foreign currency exchange differences (113) (336)
Ending Balance $ 31,424 $ 33,211