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Other reserve (Tables)

12 Months Ended

Dec. 31, 2019

Other reserves [abstract]

Summary of Other Reserve


		2017
		Foreign currency translation reserve				Amounts recognized in other comprehensive income (loss) and accumulated in equity relating to non-current assets held for sale				Unrealized gain on valuation of available-for-sale financial assets				Unearned employee awards				Total
		NT$000				NT$000				NT$000				NT$000				NT$000
January 1			10,600				287,645				—				(200,204	)			98,041
Currency translation differences
- The Company			(232,652	)			—				—				—				(232,652	)
- Disposal of a subsidiary			287,645				(287,645	)			—				—				—
Employee restricted shares
- The Company			—				—				—				145,634				145,634
Evaluation adjustment
- Associates			—				—				678				—				678

December 31			65,593				—				678				(54,570	)			11,701


		2018
		Foreign currency translation reserve				Unrealized gain (loss) on valuation of financial assets at fair value through other comprehensive income				Unrealized gain on valuation of available-for-sale financial assets				Unearned employee awards				Total
		NT$000				NT$000				NT$000				NT$000				NT$000
January 1			65,593				—				678				(54,570	)			11,701
Effects on initial application of IFRS 9			—				42,843				(678	)			—				42,165

Adjusted beginning balance			65,593				42,843				—				(54,570	)			53,866
Currency translation differences
- The Company			(51,077	)			—				—				—				(51,077	)
Employee restricted shares
- The Company			—				—				—				52,869				52,869
Evaluation adjustment
- The Company			—				85,022				—				—				85,022
- Associates			—				(2,438	)			—				—				(2,438	)
Evaluation adjustment related tax
- The Company			—				(18,529	)			—				—				(18,529	)

December 31			14,516				106,898				—				(1,701	)			119,713


		2019
		Foreign currency translation reserve				Unrealized gain (loss) on valuation of financial assets at fair value through other comprehensive income				Unearned employee awards				Total
		NT$000				NT$000				NT$000				NT$000
January 1			14,516				106,898				(1,701	)			119,713
Currency translation differences
- The Company			(104,198	)			—				—				(104,198	)
Employee restricted shares
- The Company			—				—				1,701				1,701
Evaluation adjustment
- The Company			—				(52,549	)			—				(52,549	)
- Associates			—				5,093				—				5,093
Evaluation adjustment related tax
- The Company			—				7,016				—				7,016
Disposal of investment in associates			—				(72	)			—				(72	)

December 31			(89,682	)			66,386				—				(23,296	)