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v3.22.1

Investment Properties - Summary of Investment Properties (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 investment property [line items] |  |  |  |
Beginning balance | $ 12,538,083 |  | $ 12,854,071 |
Depreciation expenses | 751,047 | $ 27,074 | 562,260 | $ 594,110
Ending balance | 22,144,787 | 798,298 | 12,538,083 | 12,854,071
Land [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 35,965 |  | 35,965 |
Ending balance | 35,572 | 1,282 | 35,965 | 35,965
Buildings and improvements [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 6,480,338 |  | 6,737,798 |
Ending balance | 13,103,952 | 472,385 | 6,480,338 | 6,737,798
Right-of-use assets [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 6,021,780 |  | 6,080,308 |
Ending balance | 9,005,263 | 324,631 | 6,021,780 | 6,080,308
Cost [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 14,597,683 | 526,232 | 14,314,126 | 15,337,702
Additions |  |  | 6,352 | 2,532
Disposals | (5,350) | (193) | (1,902) | (1,843)
Disposal of subsidiaries | (1,377,599) | (49,661) |  |
Reclassification | 13,215,879 | 476,420 | 42,317 | (511,199)
Effects of foreign currency exchange differences | 23,735 | 856 | 236,790 | (513,066)
Ending balance | 26,454,348 | 953,654 | 14,597,683 | 14,314,126
Cost [member] | Land [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 35,965 | 1,296 | 35,965 | 35,965
Reclassification | (393) | (14) |  |
Effects of foreign currency exchange differences | 0 |  |  |
Ending balance | 35,572 | 1,282 | 35,965 | 35,965
Cost [member] | Buildings and improvements [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 7,822,805 | 282,005 | 7,710,369 | 8,409,790
Additions |  |  | 6,352 | 2,532
Disposals | (5,350) | (193) | (1,902) | (1,843)
Disposal of subsidiaries | (1,290,187) | (46,510) |  |
Reclassification | 9,818,133 | 353,934 | (3,884) | (490,130)
Effects of foreign currency exchange differences | 30,697 | 1,107 | 111,870 | (209,980)
Ending balance | 16,376,098 | 590,343 | 7,822,805 | 7,710,369
Cost [member] | Right-of-use assets [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 6,738,913 | 242,931 | 6,567,792 | 6,891,947
Disposal of subsidiaries | (87,412) | (3,151) |  |
Reclassification | 3,398,139 | 122,500 | 46,201 | (21,069)
Effects of foreign currency exchange differences | (6,962) | (251) | 124,920 | (303,086)
Ending balance | 10,042,678 | 362,029 | 6,738,913 | 6,567,792
Accumulated depreciations [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 2,059,600 | 74,247 | 1,460,055 | 1,000,098
Depreciation expenses | 751,047 | 27,074 | 562,260 | 594,110
Disposals | (3,671) | (132) | (1,293) | (1,240)
Disposal of subsidiaries | (590,349) | (21,282) |  |
Reclassification | 2,093,115 | 75,455 | 9,119 | (209,912)
Effects of foreign currency exchange differences | (181) | (6) | 29,459 | 76,999
Ending balance | 4,309,561 | 155,356 | 2,059,600 | 1,460,055
Accumulated depreciations [member] | Buildings and improvements [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 1,342,467 | 48,395 | 972,571 | 707,376
Depreciation expenses | 482,625 | 17,398 | 353,048 | 377,536
Disposals | (3,671) | (132) | (1,293) | (1,240)
Disposal of subsidiaries | (570,403) | (20,563) |  |
Reclassification | 2,014,201 | 72,610 | (1,498) | (210,455)
Effects of foreign currency exchange differences | 6,927 | 250 | 19,639 | 99,354
Ending balance | 3,272,146 | 117,958 | 1,342,467 | 972,571
Accumulated depreciations [member] | Right-of-use assets [member] |  |  |  |
Disclosure of detailed information about investment property [line items] |  |  |  |
Beginning balance | 717,133 | 25,852 | 487,484 | 292,722
Depreciation expenses | 268,422 | 9,676 | 209,212 | 216,574
Disposal of subsidiaries | (19,946) | (719) |  |
Reclassification | 78,914 | 2,845 | 10,617 | 543
Effects of foreign currency exchange differences | (7,108) | (256) | 9,820 | (22,355)
Ending balance | $ 1,037,415 | $ 37,398 | $ 717,133 | $ 487,484

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- Definition The increase in investment property resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in investment property through classification as held for sale or inclusion in a disposal group classified as held for sale. [Refer: Disposal groups classified as held for sale [member]; Property, plant and equipment; Investment property; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_c&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_iii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of depreciation recognised on investment property. [Refer: Depreciation and amortisation expense; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_iv&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The decrease in investment property resulting from disposals. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_c&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_iii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The increase (decrease) in investment property 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: Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 76 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_76_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2021-01-01 -Paragraph 79 -Subparagraph d -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2021-en-r&anchor=para_79_d_vi&doctype=Standard -URIDate 2021-03-24 + Details
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