Organization record
Silicon Motion Technology Corporation
All evidence-backed facts for this organization, identity resolved across official registers.
Facts on record
Newest first; every row links to its evidence page.
| Fact | Value | Period | Source |
|---|---|---|---|
| capex | {"amount": 55065000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2025-12-31 | sec_edgar |
| capex | {"amount": 44351000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2024-12-31 | sec_edgar |
| capex | {"amount": 50313000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2023-12-31 | sec_edgar |
| capex | {"amount": 32942000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-12-31 | sec_edgar |
| capex | {"amount": 24657000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2021-12-31 | sec_edgar |
| capex | {"amount": 19545000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-12-31 | sec_edgar |
| capex | {"amount": 11015000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-12-31 | sec_edgar |
| capex | {"amount": 74853000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-12-31 | sec_edgar |
| capex | {"amount": 11683000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-12-31 | sec_edgar |
| capex | {"amount": 12220000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-12-31 | sec_edgar |
| capex | {"amount": 23664000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-12-31 | sec_edgar |
| capex | {"amount": 11596000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-12-31 | sec_edgar |
| capex | {"amount": 12772000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-12-31 | sec_edgar |
| capex | {"amount": 4280000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-12-31 | sec_edgar |
| capex | {"amount": 4916000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-12-31 | sec_edgar |
| capex | {"amount": 4339000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-12-31 | sec_edgar |
| capex | {"unit": "TWD", "value": 99480000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEq | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 201842000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2025-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 276068000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2024-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 314302000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2023-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 232179000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2022-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 360082000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2021-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 342961000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2020-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 323166000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 284989000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 359453000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 274483000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 180519000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 194211000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 161720000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 154734000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 88763000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 53889000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 61006000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"unit": "TWD", "value": 1586941000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingV | 2008-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 277081000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2025-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 334333000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2024-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 368990000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2023-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 287055000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2022-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 415523000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2021-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 369211000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2020-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 348253000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 307127000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 381523000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 321177000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2016-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 202156000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2015-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 215892000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2014-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 179584000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2013-12-31 | sec_edgar |
| cashflow_financing | {"amount": -91512000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2025-12-31 | sec_edgar |
| cashflow_financing | {"amount": -67255000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2024-12-31 | sec_edgar |
| cashflow_financing | {"amount": -16690000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2023-12-31 | sec_edgar |
| cashflow_financing | {"amount": -183096000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2022-12-31 | sec_edgar |
| cashflow_financing | {"amount": -99735000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2021-12-31 | sec_edgar |
| cashflow_financing | {"amount": -73914000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2020-12-31 | sec_edgar |
| cashflow_financing | {"amount": -70260000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2019-12-31 | sec_edgar |
| cashflow_financing | {"amount": -101820000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2018-12-31 | sec_edgar |
| cashflow_financing | {"amount": -31740000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-12-31 | sec_edgar |
| cashflow_financing | {"amount": 2194000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": 224000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curre | 2012-12-31 | sec_edgar |
| cashflow_financing | {"amount": 2294000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2011-12-31 | sec_edgar |
| cashflow_financing | {"unit": "TWD", "value": 18471000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingAct | 2009-12-31 | sec_edgar |
| cashflow_investing | {"amount": -27403000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2025-12-31 | sec_edgar |
| cashflow_investing | {"amount": -44089000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2024-12-31 | sec_edgar |
| cashflow_investing | {"amount": -49085000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2023-12-31 | sec_edgar |
| cashflow_investing | {"amount": -32942000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2022-12-31 | sec_edgar |
| cashflow_investing | {"amount": -28164000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2021-12-31 | sec_edgar |
| cashflow_investing | {"amount": -21545000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2020-12-31 | sec_edgar |
| cashflow_investing | {"amount": 34668000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2019-12-31 | sec_edgar |
| cashflow_investing | {"amount": -79568000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2018-12-31 | sec_edgar |
| cashflow_investing | {"amount": -14548000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2017-12-31 | sec_edgar |
| cashflow_investing | {"amount": -8220000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2016-12-31 | sec_edgar |
| cashflow_investing | {"amount": -4749000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-12-31 | sec_edgar |
| cashflow_investing | {"amount": -13947000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2011-12-31 | sec_edgar |
| cashflow_investing | {"amount": -9894000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2010-12-31 | sec_edgar |
| cashflow_investing | {"unit": "TWD", "value": -45299000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingAc | 2009-12-31 | sec_edgar |
| cashflow_operating | {"amount": 61360000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2025-12-31 | sec_edgar |
| cashflow_operating | {"amount": 77095000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2024-12-31 | sec_edgar |
| cashflow_operating | {"amount": 149083000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2023-12-31 | sec_edgar |
| cashflow_operating | {"amount": 83892000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2022-12-31 | sec_edgar |
| cashflow_operating | {"amount": 174698000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2021-12-31 | sec_edgar |
| cashflow_operating | {"amount": 117229000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2020-12-31 | sec_edgar |
| cashflow_operating | {"amount": 77695000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2019-12-31 | sec_edgar |
| cashflow_operating | {"amount": 108242000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2018-12-31 | sec_edgar |
| cashflow_operating | {"amount": 103881000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-12-31 | sec_edgar |
| cashflow_operating | {"amount": 125568000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2016-12-31 | sec_edgar |
| cashflow_operating | {"amount": 65946000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2015-12-31 | sec_edgar |
| cashflow_operating | {"amount": 68725000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2014-12-31 | sec_edgar |
| cashflow_operating | {"amount": 49128000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2013-12-31 | sec_edgar |
| cashflow_operating | {"amount": 69236000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2012-12-31 | sec_edgar |
| cashflow_operating | {"amount": 54261000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2011-12-31 | sec_edgar |
| cashflow_operating | {"amount": -11987000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2010-12-31 | sec_edgar |
| cashflow_operating | {"unit": "TWD", "value": 323927000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingAc | 2009-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 134245000, "concept": "us-gaap:CommonStockSharesIssued"} | 2025-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 134764000, "concept": "us-gaap:CommonStockSharesIssued"} | 2024-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 133676000, "concept": "us-gaap:CommonStockSharesIssued"} | 2023-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 132216000, "concept": "us-gaap:CommonStockSharesIssued"} | 2022-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 139764000, "concept": "us-gaap:CommonStockSharesIssued"} | 2021-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 138168000, "concept": "us-gaap:CommonStockSharesIssued"} | 2020-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 139110000, "concept": "us-gaap:CommonStockSharesIssued"} | 2019-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 144679000, "concept": "us-gaap:CommonStockSharesIssued"} | 2018-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 143162000, "concept": "us-gaap:CommonStockSharesIssued"} | 2017-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 141311000, "concept": "us-gaap:CommonStockSharesIssued"} | 2016-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 139521000, "concept": "us-gaap:CommonStockSharesIssued"} | 2015-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 135622000, "concept": "us-gaap:CommonStockSharesIssued"} | 2014-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 131630000, "concept": "us-gaap:CommonStockSharesIssued"} | 2013-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 130040000, "concept": "us-gaap:CommonStockSharesIssued"} | 2012-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 124572000, "concept": "us-gaap:CommonStockSharesIssued"} | 2011-12-31 | sec_edgar |
| common_shares_issued | {"unit": "shares", "value": 117139000, "concept": "us-gaap:CommonStockSharesIssued"} | 2010-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 134245000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2025-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 134764000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2024-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 133676000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2023-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 132216000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2022-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 139764000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2021-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 138168000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2020-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 139110000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2019-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 144679000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2018-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 143162000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2017-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 141311000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2016-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 139521000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2015-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 135622000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2014-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 131630000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2013-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 130040000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2012-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 124572000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2011-12-31 | sec_edgar |
| common_shares_outstanding | {"unit": "shares", "value": 117139000, "concept": "us-gaap:CommonStockSharesOutstanding"} | 2010-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 458118000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2025-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 434787000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2024-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 368752000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2023-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 480090000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2022-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 461305000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2021-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 279365000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2020-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 235081000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2019-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 269541000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2018-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 272210000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2017-12-31 | sec_edgar |
| cost_of_revenue | {"amount": 281541000, "concept": "us-gaap:CostOfGoodsAndServicesSold", "currency": "USD"} | 2016-12-31 | sec_edgar |
| current_assets | {"amount": 943368000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| current_assets | {"amount": 794873000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2024-12-31 | sec_edgar |
| current_assets | {"amount": 793245000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| current_assets | {"amount": 787922000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| current_assets | {"amount": 818112000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| current_assets | {"amount": 618093000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| current_assets | {"amount": 565199000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| current_assets | {"amount": 498490000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| current_assets | {"amount": 568797000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| current_assets | {"amount": 476900000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| current_assets | {"amount": 315176000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| current_assets | {"amount": 290440000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| current_assets | {"amount": 246539000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| current_assets | {"amount": 258412000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| current_assets | {"amount": 179580000, "concept": "us-gaap:AssetsCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| current_assets | {"unit": "TWD", "value": 3410333000, "concept": "us-gaap:AssetsCurrent"} | 2010-12-31 | sec_edgar |
| current_liabilities | {"amount": 339523000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| current_liabilities | {"amount": 199504000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2024-12-31 | sec_edgar |
| current_liabilities | {"amount": 212810000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| current_liabilities | {"amount": 183868000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| current_liabilities | {"amount": 281519000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| current_liabilities | {"amount": 158744000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| current_liabilities | {"amount": 131488000, "concept": "us-gaap:LiabilitiesCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
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| current_liabilities | {"unit": "TWD", "value": 808845000, "concept": "us-gaap:LiabilitiesCurrent"} | 2010-12-31 | sec_edgar |
| dei:EntityCommonStockSharesOutstanding | {"unit": "shares", "value": 134244840} | 2025-12-31 | sec_edgar |
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| depreciation_amortization | {"amount": 30174000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2025-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 25331000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2024-12-31 | sec_edgar |
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| depreciation_amortization | {"amount": 17160000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2021-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 13562000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2020-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 12447000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2019-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 11832000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2018-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 10599000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency" | 2017-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 9482000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2016-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 7936000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2015-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 6917000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2014-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 6429000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2013-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 5881000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2012-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 5580000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2011-12-31 | sec_edgar |
| depreciation_amortization | {"amount": 4775000, "concept": "us-gaap:DepreciationDepletionAndAmortization", "currency": | 2010-12-31 | sec_edgar |
| depreciation_amortization | {"unit": "TWD", "value": 163129000, "concept": "us-gaap:DepreciationDepletionAndAmortizati | 2009-12-31 | sec_edgar |
| dividend_per_share | {"per": "shares", "amount": 0.125, "concept": "us-gaap:CommonStockDividendsPerShareDeclare | 2025-12-31 | sec_edgar |
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