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Stock-Based Compensation - Summary of Restricted Share Units Activity (Parenthetical) (Detail) - Restricted Share Units (RSUs)	3 Months Ended
	Mar. 31, 2020 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vested, number of shares (Units)	15,200	[1]
RSUs settled on vesting by issuing shares (net of minimum tax withholding)	10,002
[1] 15,200 RSUs that vested during the period were net settled upon vesting by issuing  10,002  shares (net of minimum statutory tax withholding).

X

- Definition

Number, after shares used to satisfy grantee's tax withholding obligation for award under share-based payment arrangement, of restricted shares issued. Excludes cash used to satisfy grantee's tax withholding obligation.

+ References

No definition available.

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X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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

+ References

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