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v3.22.1

Property, Plant and Equipment, Net - Summary of Property, Plant and Equipment, Net (Detail) $ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 TWD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 TWD ($) | Dec. 31, 2019 TWD ($)
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | $ 17,994,686 |  | $ 17,979,444 | $ 16,819,621
Effects on initial application of IFRS 16 |  |  |  | (31,904)
Adjusted Balance On Property Plant And Equipment |  |  |  | 16,787,717
Additions | 6,552,702 |  | 4,133,615 | 4,896,656
Disposals | (76,375) |  | (19,358) | (25,785)
Reclassifications | 0 |  | 0 | 26,618
Depreciation expenses | (4,355,032) |  | (4,098,993) | (3,695,815)
Impairment losses | (4,843) |  |  | (9,938)
Exchange adjustments | (17) |  | (22) | (9)
Ending Balance | 20,111,121 | $ 724,986 | 17,994,686 | 17,979,444
Land [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 452,738 |  | 452,738 | 452,738
Adjusted Balance On Property Plant And Equipment |  |  |  | 452,738
Additions | 0 |  | 0 | 0
Disposals | 0 |  | 0 | 0
Reclassifications | 0 |  | 0 | 0
Depreciation expenses | 0 |  | 0 | 0
Ending Balance | 452,738 |  | 452,738 | 452,738
Buildings [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 4,092,286 |  | 4,095,929 | 3,908,731
Adjusted Balance On Property Plant And Equipment |  |  |  | 3,908,731
Additions | 1,345 |  | 132,572 | 116,238
Disposals | 0 |  | 0 | 0
Reclassifications | 673,208 |  | 258,421 | 455,792
Depreciation expenses | (423,283) |  | (394,636) | (384,832)
Ending Balance | 4,343,556 |  | 4,092,286 | 4,095,929
Machinery and equipment [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 11,348,297 |  | 11,163,121 | 10,232,093
Adjusted Balance On Property Plant And Equipment |  |  |  | 10,232,093
Additions | 11,829 |  | 592,565 | 2,334,358
Disposals | (66,873) |  | (8,940) | (16,033)
Reclassifications | 4,890,400 |  | 2,336,238 | 1,111,715
Depreciation expenses | (2,896,612) |  | (2,734,667) | (2,489,070)
Impairment losses | (4,843) |  |  | (9,938)
Exchange adjustments | (13) |  | (20) | (4)
Ending Balance | 13,282,185 |  | 11,348,297 | 11,163,121
Tools [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 952,361 |  | 896,476 | 742,179
Adjusted Balance On Property Plant And Equipment |  |  |  | 742,179
Additions | 407 |  | 409,832 | 781,465
Disposals | (9,502) |  | (3,121) | (9,336)
Reclassifications | 690,346 |  | 398,798 | 7,880
Depreciation expenses | (795,622) |  | (749,624) | (625,712)
Ending Balance | 837,990 |  | 952,361 | 896,476
Other [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 509,397 |  | 434,791 | 413,988
Effects on initial application of IFRS 16 |  |  |  | (31,904)
Adjusted Balance On Property Plant And Equipment |  |  |  | 382,084
Additions | 189 |  | 142,776 | 224,287
Disposals | 0 |  | (7,297) | (416)
Reclassifications | 241,656 |  | 159,195 | 25,042
Depreciation expenses | (239,515) |  | (220,066) | (196,201)
Exchange adjustments | (4) |  | (2) | (5)
Ending Balance | 511,723 |  | 509,397 | 434,791
Construction in progress and equipment to be inspected [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 639,607 |  | 936,389 | 1,069,892
Adjusted Balance On Property Plant And Equipment |  |  |  | 1,069,892
Additions | 6,538,932 |  | 2,855,870 | 1,440,308
Disposals | 0 |  | 0 | 0
Reclassifications | (6,495,610) |  | (3,152,652) | (1,573,811)
Depreciation expenses | 0 |  | 0 | 0
Ending Balance | 682,929 |  | 639,607 | 936,389
Gross carrying amount [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 73,187,794 |  | 70,401,687 | 67,064,936
Ending Balance | 78,108,945 |  | 73,187,794 | 70,401,687
Gross carrying amount [member] | Land [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 452,738 |  | 452,738 | 452,738
Ending Balance | 452,738 |  | 452,738 | 452,738
Gross carrying amount [member] | Buildings [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 11,212,129 |  | 10,821,972 | 10,254,531
Ending Balance | 11,877,419 |  | 11,212,129 | 10,821,972
Gross carrying amount [member] | Machinery and equipment [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 53,246,474 |  | 51,244,512 | 48,274,171
Ending Balance | 57,176,339 |  | 53,246,474 | 51,244,512
Gross carrying amount [member] | Tools [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 5,451,547 |  | 5,008,321 | 4,402,711
Ending Balance | 5,574,316 |  | 5,451,547 | 5,008,321
Gross carrying amount [member] | Other [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 2,185,299 |  | 1,937,755 | 2,610,893
Ending Balance | 2,345,204 |  | 2,185,299 | 1,937,755
Gross carrying amount [member] | Construction in progress and equipment to be inspected [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 639,607 |  | 936,389 | 1,069,892
Ending Balance | 682,929 |  | 639,607 | 936,389
Accumulated depreciation and impairment [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | (55,193,108) |  | (52,422,243) | (50,245,315)
Ending Balance | (57,997,824) |  | (55,193,108) | (52,422,243)
Accumulated depreciation and impairment [member] | Land [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 0 |  | 0 | 0
Ending Balance | 0 |  | 0 | 0
Accumulated depreciation and impairment [member] | Buildings [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | (7,119,843) |  | (6,726,043) | (6,345,800)
Ending Balance | (7,533,863) |  | (7,119,843) | (6,726,043)
Accumulated depreciation and impairment [member] | Machinery and equipment [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | (41,898,177) |  | (40,081,391) | (38,042,078)
Ending Balance | (43,894,154) |  | (41,898,177) | (40,081,391)
Accumulated depreciation and impairment [member] | Tools [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | (4,499,186) |  | (4,111,845) | (3,660,532)
Ending Balance | (4,736,326) |  | (4,499,186) | (4,111,845)
Accumulated depreciation and impairment [member] | Other [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | (1,675,902) |  | (1,502,964) | (2,196,905)
Ending Balance | (1,833,481) |  | (1,675,902) | (1,502,964)
Accumulated depreciation and impairment [member] | Construction in progress and equipment to be inspected [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [Line Items] |  |  |  |
Beginning Balance | 0 |  | 0 | 0
Ending Balance | $ 0 |  | $ 0 | $ 0

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- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2021-03-24 + Details
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