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Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Profit	$ 105,433	$ 86,436	$ 37,763
Denominator:
Basic weighted average ordinary shares outstanding	50,139,389	50,388,440	50,582,852
Dilutive impact of equivalent stock options and RSUs	2,138,724	2,527,160	2,357,456
Diluted weighted average ordinary shares outstanding	52,278,113	52,915,600	52,940,308

X

- Definition

The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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