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Other Payables - Summary of Other Payables (Detail) $ in Thousands, $ in Thousands | Dec. 31, 2018 USD ($) | Dec. 31, 2018 TWD ($) | Dec. 31, 2017 TWD ($)
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Subclassifications of assets, liabilities and equities [abstract] |  |  |
Accrued salary and bonus | $ 346,005 | $ 10,591,202 | $ 7,292,254
Payables for property, plant and equipment | 261,210 | 7,995,634 | 4,623,268
Accrued employees' compensation and remuneration to directors | 99,262 | 3,038,417 | 2,568,880
Accrued employee insurance | 28,606 | 875,638 | 657,176
Accrued utilities | 13,953 | 427,106 | 417,257
Payables for patents and acquired specific technology (Note 37) | 1,882 | 57,590 | 93,000
Others | 261,950 | 8,018,295 | 5,726,052
Other payables | $ 1,012,868 | $ 31,003,882 | $ 21,377,887

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