Subsequent Events - Additional Information (Detail) - Subsequent Event $ / shares in Units, $ in Millions	Mar. 06, 2019 USD ($) $ / shares
Subsequent Event [Line Items]
Increase in share repurchase program approved by board directors	$ 200
Available capacity to repurchase share in open market or privately negotiated transactions	$ 250
Dividend Declared
Subsequent Event [Line Items]
Dividends payable, declared date	Mar. 06, 2019
Dividends payable, per share amount \| $ / shares	$ 0.10
Dividends payable, payable date	Apr. 15, 2019
Dividends declared, record date	Mar. 26, 2019

Stock repurchase program increase authorized amount.

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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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- Definition

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

+ References

+ Details

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- Definition

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

+ References

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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