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Share-based Payments Arrangement - Black-Scholes Model and Related Assumptions used to Evaluate Options and Fair Value of Options by CLPT (Detail) - C L P T Plan
May 31, 2022
TWD ($)
yr
$ / shares
Feb. 26, 2021
TWD ($)
yr
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Grant-date share price $ 18.66 $ 17.63
Exercise price $ 16.87 $ 16.87
Dividend yield 0.00% 0.00%
Risk-free interest rate 0.98% 0.31%
Expected life | yr 4 4
Expected volatility 35.76% 35.22%
Weighted average fair value of grants | $ $ 5,665 $ 4,750