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v3.24.0.1

Segmented information - Results of Operations and Assets for Segments (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Revenue |  |
Revenue | $ 2,612,036 | $ 2,680,836
Other revenue | 2,698,015 | 2,765,013
Fuel, power and water purchased | 735,945 | 866,354
Net revenue | 1,962,070 | 1,898,659
Operating expenses | 906,985 | 851,489
Administrative expenses (recovery) | 90,359 | 80,232
Depreciation and amortization | 466,996 | 455,520
Asset impairment charge | 23,492 | 159,568
Loss on foreign exchange | 8,359 | 13,833
Operating income (loss), before gain on sale of renewable assets |  | 338,017
Gain on sale of renewable assets | 0 | 64,028
Operating income | 465,879 | 402,045
Interest expense | (353,656) | (278,574)
Income (loss) from long-term investments | (83,564) | (465,206)
Other expenses | (148,264) | (27,933)
Loss before income taxes | (119,605) | (369,668)
Property, plant and equipment | 12,517,450 | 11,944,885
Investments carried at fair value | 1,115,729 | 1,344,207
Equity-method investees | 456,393 | 381,802
Total assets | 18,373,961 | 17,627,613
Capital expenditures | 1,026,171 | 1,089,024
Revenue related to net hedging loss, not recognized as revenue from contract with customers | 5,695 | 63,717
Revenue related to alternative revenue programs, not recognized as revenue from contract with customers | 32,839 | 21,640
Other revenue |  |
Revenue |  |
Other revenue | 85,979 | 84,177
Regulated Services Group | Operating Segments |  |
Revenue |  |
Revenue | 2,315,722 | 2,330,039
Fuel, power and water purchased | 716,446 | 824,670
Net revenue | 1,650,413 | 1,559,598
Operating expenses | 786,608 | 736,515
Administrative expenses (recovery) | 46,386 | 46,484
Depreciation and amortization | 346,188 | 317,300
Asset impairment charge | 0 | 0
Loss on foreign exchange | 0 | 0
Operating income (loss), before gain on sale of renewable assets |  | 459,299
Gain on sale of renewable assets |  | 0
Operating income | 471,231 | 459,299
Interest expense | (160,998) | (113,482)
Income (loss) from long-term investments | 44,953 | 21,884
Other expenses | (121,146) | (14,765)
Loss before income taxes | 234,040 | 352,936
Property, plant and equipment | 8,945,637 | 8,554,938
Investments carried at fair value | 1,962 | 1,984
Equity-method investees | 112,180 | 56,199
Total assets | 12,658,955 | 12,109,575
Capital expenditures | 816,788 | 908,676
Regulated Services Group | Operating Segments | Other revenue |  |
Revenue |  |
Other revenue | 51,137 | 54,229
Renewable Energy Group | Operating Segments |  |
Revenue |  |
Revenue | 296,314 | 350,797
Fuel, power and water purchased | 19,499 | 41,684
Net revenue | 310,210 | 337,560
Operating expenses | 119,013 | 114,463
Administrative expenses (recovery) | 36,554 | 26,424
Depreciation and amortization | 119,576 | 137,203
Asset impairment charge | 23,492 | 159,568
Loss on foreign exchange | 0 | 0
Operating income (loss), before gain on sale of renewable assets |  | (100,098)
Gain on sale of renewable assets |  | 64,028
Operating income | 11,575 | (36,070)
Interest expense | (61,261) | (64,285)
Income (loss) from long-term investments | 102,188 | 15,254
Other expenses | (4,002) | (570)
Loss before income taxes | 48,500 | (85,671)
Property, plant and equipment | 3,539,069 | 3,360,687
Investments carried at fair value | 1,113,767 | 1,342,223
Equity-method investees | 343,712 | 310,103
Total assets | 5,367,011 | 5,251,933
Capital expenditures | 209,383 | 180,348
Renewable Energy Group | Operating Segments | Other revenue |  |
Revenue |  |
Other revenue | 33,395 | 28,447
Corporate | Corporate |  |
Revenue |  |
Revenue | 0 | 0
Fuel, power and water purchased | 0 | 0
Net revenue | 1,447 | 1,501
Operating expenses | 1,364 | 511
Administrative expenses (recovery) | 7,419 | 7,324
Depreciation and amortization | 1,232 | 1,017
Asset impairment charge | 0 | 0
Loss on foreign exchange | 8,359 | 13,833
Operating income (loss), before gain on sale of renewable assets |  | (21,184)
Gain on sale of renewable assets |  | 0
Operating income | (16,927) | (21,184)
Interest expense | (131,397) | (100,807)
Income (loss) from long-term investments | (230,705) | (502,344)
Other expenses | (23,116) | (12,598)
Loss before income taxes | (402,145) | (636,933)
Property, plant and equipment | 32,744 | 29,260
Investments carried at fair value | 0 | 0
Equity-method investees | 501 | 15,500
Total assets | 347,995 | 266,105
Capital expenditures | 0 | 0
Corporate | Corporate | Other revenue |  |
Revenue |  |
Other revenue | $ 1,447 | $ 1,501

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