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Changes in liabilities from financing activities - Reconciliation of Liabilities Arising from Financing Activities (Detail) - TWD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Beginning balance | $ 8,625,730 | $ 9,735,691 | $ 9,790,610
Effects on initial application of IFRS 16 |  |  | 884,275
Adjusted balance at January 1, 2019 |  |  | 10,674,885
Changes in cash flow from financing activities | 2,094,370 | (1,411,210) | (804,608)
Adjustment to right-of-use assets | 255,179 | 249,030 | (148,512)
Reclassification to payable on equipment from lease liabilities |  |  | (9,000)
Reclassification |  | 20,000 |
Amortization Of Interest Expense | 35,067 | 24,638 | 14,349
Amortization of loan fees | 7,646 | 7,581 | 8,577
Ending balance | 11,017,992 | 8,625,730 | 9,735,691
Long-term bank loans (include the current portion) [member] |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Beginning balance | 7,733,565 | 9,041,645 | 9,789,518
Adjusted balance at January 1, 2019 |  |  | 9,789,518
Changes in cash flow from financing activities | 1,652,332 | (1,326,857) | (756,450)
Amortization Of Interest Expense | 19,822 | 11,196 |
Amortization of loan fees | 7,646 | 7,581 | 8,577
Ending balance | 9,413,365 | 7,733,565 | 9,041,645
Short-term bank loans [member] |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Changes in cash flow from financing activities | 731,751 |  |
Ending balance | 731,751 |  |
Guarantee deposits [member] |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Beginning balance | 21,670 | 1,095 | 1,092
Adjusted balance at January 1, 2019 |  |  | 1,092
Changes in cash flow from financing activities | (45) | 575 | 3
Reclassification |  | 20,000 |
Ending balance | 21,625 | 21,670 | 1,095
Lease liabilities [member] |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Beginning balance | 870,495 | 692,951 |
Effects on initial application of IFRS 16 |  |  | 884,275
Adjusted balance at January 1, 2019 |  |  | 884,275
Changes in cash flow from financing activities | (289,668) | (84,928) | (48,161)
Adjustment to right-of-use assets | 255,179 | 249,030 | (148,512)
Reclassification to payable on equipment from lease liabilities |  |  | (9,000)
Amortization Of Interest Expense | 15,245 | 13,442 | 14,349
Ending balance | $ 851,251 | $ 870,495 | $ 692,951

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- Definition The amount of liabilities for which cash flows were, or future cash flows will be, classified in the statement of cash flows as cash flows from financing activities. [Refer: Cash flows from (used in) financing activities; Liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44D -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44D&doctype=Standard -URIDate 2021-03-24 + Details
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