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Property, plant and equipment, net (Tables)

12 Months Ended

Dec. 31, 2019

Text block [abstract]

Summary of Property, Plant and Equipment, Net

		2018
		Land				Buildings				Machinery and equipment				Tools				Others				Construction in progress and equipment to be inspected				Total
		NT$000				NT$000				NT$000				NT$000				NT$000				NT$000				NT$000
January 1
Cost			452,738				9,809,970				45,778,207				4,004,703				2,624,083				968,719				63,638,420
Accumulated depreciation and impairment			—				(5,890,884	)			(36,964,480	)			(3,314,234	)			(2,203,511	)			—				(48,373,109	)
			452,738				3,919,086				8,813,727				690,469				420,572				968,719				15,265,311
January 1			452,738				3,919,086				8,813,727				690,469				420,572				968,719				15,265,311
Additions			—				247,186				2,445,313				591,229				172,652				1,489,190				4,945,570
Disposals			—				—				(904	)			(11,745	)			(2,067	)			—				(14,716	)
Reclassifications			—				199,724				1,154,663				7,604				26,026				(1,388,017	)			—
Depreciation expenses			—				(457,265	)			(2,180,718	)			(535,378	)			(203,218	)			—				(3,376,579	)
Exchange adjustment			—				—				12				—				23				—				35
December 31			452,738				3,908,731				10,232,093				742,179				413,988				1,069,892				16,819,621
December 31
Cost			452,738				10,254,531				48,274,171				4,402,711				2,610,893				1,069,892				67,064,936
Accumulated depreciation and impairment			—				(6,345,800	)			(38,042,078	)			(3,660,532	)			(2,196,905	)			—				(50,245,315	)
			452,738				3,908,731				10,232,093				742,179				413,988				1,069,892				16,819,621

		2019
		Land				Buildings				Machinery and equipment				Tools				Others				Construction in progress and equipment to be inspected				Total
		NT$000				NT$000				NT$000				NT$000				NT$000				NT$000				NT$000
January 1
Cost			452,738				10,254,531				48,274,171				4,402,711				2,610,893				1,069,892				67,064,936
Accumulated depreciation and impairment			—				(6,345,800	)			(38,042,078	)			(3,660,532	)			(2,196,905	)			—				(50,245,315	)
			452,738				3,908,731				10,232,093				742,179				413,988				1,069,892				16,819,621
January 1			452,738				3,908,731				10,232,093				742,179				413,988				1,069,892				16,819,621
Effects on initial application of IFRS 16			—				—				—				—				(31,904	)			—				(31,904	)
Adjusted balance at January 1			452,738				3,908,731				10,232,093				742,179				382,084				1,069,892				16,787,717
Additions			—				116,238				2,334,358				781,465				224,287				1,440,308				4,896,656
Disposals			—				—				(16,033	)			(9,336	)			(416	)			—				(25,785	)
Reclassifications			—				455,792				1,111,715				7,880				25,042				(1,573,811	)			26,618
Depreciation expenses			—				(384,832	)			(2,489,070	)			(625,712	)			(196,201	)			—				(3,695,815	)
Impairment losses			—				—				(9,938	)			—				—				—				(9,938	)
Exchange adjustment			—				—				(4	)			—				(5	)			—				(9	)
December 31			452,738				4,095,929				11,163,121				896,476				434,791				936,389				17,979,444
December 31
Cost			452,738				10,821,972				51,244,512				5,008,321				1,937,755				936,389				70,401,687
Accumulated depreciation and impairment			—				(6,726,043	)			(40,081,391	)			(4,111,845	)			(1,502,964	)			—				(52,422,243	)
			452,738				4,095,929				11,163,121				896,476				434,791				936,389				17,979,444

Capitalization Interest and Capitalization Interest Rate Applied Related to Property, Plant and Equipment

		2018				2019
		NT$000				NT$000
Amount of interest capitalized			18,542				15,114
Range of the interest rates for capitalization			1.7582	%			1.7822	%

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The entire disclosure for borrowing costs.

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