v3.24.1
Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail)
$ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2023
TWD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
TWD ($)
Dec. 31, 2021
TWD ($)
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance $ 268,234,618      
Additions 48,758,649 $ 1,592,379 $ 75,800,574 $ 74,417,541
Depreciation expense 51,799,481 1,691,688 48,945,756 48,604,160
Ending balance 264,812,022 8,648,335 268,234,618  
Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 691,728,308 22,590,734 619,194,154 616,363,382
Additions 48,758,649 1,592,379 75,800,574 74,417,541
Disposals (18,153,613) (592,868) (9,832,977) (13,839,233)
Disposal of subsidiaries       (48,138,060)
Reclassification 182,588 5,963 (103,009) (4,807,434)
Acquisitions through business combinations 1,566,236 51,151   41,526
Effect of foreign currency exchange differences (3,173,117) (103,628) 6,669,566 (4,843,568)
Ending balance 720,909,051 23,543,731 691,728,308 619,194,154
Accumulated depreciation, amortisation and impairment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 423,493,690 13,830,623 379,326,604 381,997,985
Depreciation expense 51,799,481 1,691,688 48,945,756 48,604,160
Impairment losses recognized 146,570 4,787 405,399 126,766
Disposals (17,981,026) (587,231) (9,334,120) (12,782,153)
Disposal of subsidiaries       (31,444,931)
Reclassification 51,031 1,666 198,534 (3,800,474)
Acquisitions through business combinations 879,987 28,739   3,760
Effect of foreign currency exchange differences (2,292,704) (74,876) 3,951,517 (3,378,509)
Ending balance 456,097,029 14,895,396 423,493,690 379,326,604
Land [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 13,006,893   11,530,540 10,457,960
Additions     1,453,816 1,126,012
Disposals     (63,446) (2,400)
Reclassification     0 393
Effect of foreign currency exchange differences     85,983 (51,425)
Ending balance     13,006,893 11,530,540
Land and Land Improvements [Member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 13,006,893      
Ending balance 13,523,045 441,641 13,006,893  
Land and Land Improvements [Member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 13,006,893 424,784    
Additions 424,130 13,851    
Disposals (3,436) (112)    
Reclassification 142,562 4,656    
Acquisitions through business combinations 17,921 585    
Effect of foreign currency exchange differences (6,584) (215)    
Ending balance 13,581,486 443,549 13,006,893  
Land and Land Improvements [Member] | Accumulated depreciation, amortisation and impairment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Depreciation expense 17,860 583    
Disposals (3,436) (112)    
Reclassification 43,725 1,428    
Effect of foreign currency exchange differences 292 9    
Ending balance 58,441 1,908    
Buildings and improvements [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 91,623,291      
Ending balance 100,697,091 3,288,605 91,623,291  
Buildings and improvements [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 172,798,699 5,643,328 152,641,699 158,812,500
Additions 1,866,786 60,966 302,092 2,718,507
Disposals (8,786,519) (286,954) (1,129,046) (659,833)
Disposal of subsidiaries       (12,344,067)
Reclassification 16,398,574 535,551 19,150,796 5,038,562
Acquisitions through business combinations 113,416 3,704   5,284
Effect of foreign currency exchange differences (594,193) (19,405) 1,833,158 (929,254)
Ending balance 181,796,763 5,937,190 172,798,699 152,641,699
Buildings and improvements [member] | Accumulated depreciation, amortisation and impairment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 81,175,408 2,651,058 73,367,762 75,998,643
Depreciation expense 8,896,551 290,547 7,516,917 7,620,561
Impairment losses recognized 134,999 4,409 244,719 15,915
Disposals (8,771,076) (286,449) (1,081,082) (565,551)
Disposal of subsidiaries       (5,369,867)
Reclassification (35,568) (1,162) 198,534 (3,924,490)
Acquisitions through business combinations 24,770 809   241
Effect of foreign currency exchange differences (325,412) (10,627) 928,558 (407,690)
Ending balance 81,099,672 2,648,585 81,175,408 73,367,762
Machinery and equipment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 142,129,485      
Ending balance 126,807,662 4,141,334 142,129,485  
Machinery and equipment [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 473,494,702 15,463,576 423,488,598 416,368,479
Additions 2,308,779 75,401 1,514,563 1,332,497
Disposals (7,912,516) (258,410) (7,457,317) (10,999,274)
Disposal of subsidiaries       (33,309,236)
Reclassification 24,044,088 785,241 51,716,057 53,856,444
Acquisitions through business combinations 1,133,555 37,020   28,282
Effect of foreign currency exchange differences (2,394,857) (78,212) 4,232,801 (3,788,594)
Ending balance 490,673,751 16,024,616 473,494,702 423,488,598
Machinery and equipment [member] | Accumulated depreciation, amortisation and impairment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 331,365,217 10,821,855 295,286,082 293,828,682
Depreciation expense 41,403,363 1,352,168 39,819,816 39,147,076
Impairment losses recognized 10,802 353 155,334 105,815
Disposals (7,774,818) (253,913) (7,114,817) (10,151,428)
Disposal of subsidiaries       (24,974,206)
Reclassification 7,674 250 365,180 142,234
Acquisitions through business combinations 728,504 23,792   1,067
Effect of foreign currency exchange differences (1,874,653) (61,223) 2,853,622 (2,813,158)
Ending balance 363,866,089 11,883,282 331,365,217 295,286,082
Other equipment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 3,401,543      
Ending balance 3,019,031 98,597 3,401,543  
Other equipment [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 14,354,608 468,798 14,601,044 16,870,978
Additions 141,158 4,610 137,208 135,439
Disposals (1,441,685) (47,083) (1,176,897) (2,144,766)
Disposal of subsidiaries       (1,247,326)
Reclassification 992,109 32,401 560,828 1,181,455
Acquisitions through business combinations 133,867 4,372   3,108
Effect of foreign currency exchange differences (88,199) (2,880) 232,425 (197,844)
Ending balance 14,091,858 460,218 14,354,608 14,601,044
Other equipment [member] | Accumulated depreciation, amortisation and impairment [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 10,953,065 357,710 10,672,760 12,170,660
Depreciation expense 1,481,707 48,390 1,609,023 1,836,523
Impairment losses recognized 769 25 5,346 5,036
Disposals (1,431,696) (46,757) (1,138,221) (2,065,174)
Disposal of subsidiaries       (1,100,858)
Reclassification 35,200 1,150 (365,180) (18,218)
Acquisitions through business combinations 126,713 4,138   2,452
Effect of foreign currency exchange differences (92,931) (3,035) 169,337 (157,661)
Ending balance 11,072,827 361,621 10,953,065 10,672,760
Construction in progress and machinery under installation [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 18,073,406      
Ending balance 20,765,193 678,158 18,073,406  
Construction in progress and machinery under installation [member] | Cost [member]        
Disclosure of detailed information about property, plant and equipment [Line Items]        
Beginning balance 18,073,406 590,248 16,932,273 13,853,465
Additions 44,017,796 1,437,551 72,392,895 69,105,086
Disposals (9,457) (309) (6,271) (32,960)
Disposal of subsidiaries       (1,237,431)
Reclassification (41,394,745) (1,351,886) (71,530,690) (64,884,288)
Acquisitions through business combinations 167,477 5,470   4,852
Effect of foreign currency exchange differences (89,284) (2,916) 285,199 123,549
Ending balance $ 20,765,193 $ 678,158 $ 18,073,406 $ 16,932,273