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Shareholders' Equity - Schedule of Dividend Declared (Detail)	12 Months Ended
	Dec. 31, 2019 $ / shares
Record Date One [Member]
Dividends Declared [Line Items]
Dividend Per Share	$ 0.075
Record Date	Aug. 07, 2017
Payment Date	Sep. 29, 2017
Record Date Two [Member]
Dividends Declared [Line Items]
Dividend Per Share	$ 0.075
Record Date	May 10, 2017
Payment Date	Jun. 30, 2017
Record Date Three [Member]
Dividends Declared [Line Items]
Dividend Per Share	$ 0.075
Record Date	Mar. 06, 2017
Payment Date	Mar. 31, 2017

X

- Definition

Dividends Declared [Line Items]

+ References

No definition available.

+ Details

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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

+ Details

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X

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

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X

- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

+ References

No definition available.

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