XML 124 R105.htm IDEA: XBRL DOCUMENT v3.19.1
Inventories - Summary of Inventories (Detail)
$ in Thousands, $ in Thousands
Dec. 31, 2018
USD ($)
Dec. 31, 2018
TWD ($)
Dec. 31, 2017
TWD ($)
Classes of current inventories [abstract]      
Finished goods $ 250,901 $ 7,680,083 $ 6,740,816
Work in process 104,393 3,195,478 3,452,332
Raw materials 759,582 23,250,801 12,625,502
Supplies 61,816 1,892,194 894,196
Raw materials and supplies in transit 19,892 608,895 548,065
Inventories $ 1,196,584 $ 36,627,451 $ 24,260,911