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Shareholders' Equity - Summary of Reconciliation of Common Shares Outstanding (Detail)	6 Months Ended
	Jun. 30, 2019 shares	Jun. 30, 2018 shares
Disclosure of classes of share capital [line items]
Exercise of common share options	9,980
Vesting of RSUs	24,330
Ordinary shares [member]
Disclosure of classes of share capital [line items]
Common Shares outstanding, Beginning balance	23,358,977	19,429,848
Issued for cash		3,099,997
Exercise of common share options	9,980	34,041
Vesting of RSUs	24,330	68,914
Common shares outstanding, Ending balance	23,393,287	22,632,800

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The number of share options exercised in a share-based payment arrangement.

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-IssueDate 2018-01-01
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The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2018-01-01
-Paragraph 79
-Subparagraph a
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Number of shares issued for cash.

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