Subsequent Events - Additional Information (Detail)	3 Months Ended
Mar. 31, 2016 $ / shares
Dividends Payable [Line Items]
Dividend declared, per share	$ 0.37
Dividend Declared [Member]
Dividends Payable [Line Items]
Dividend declared, declaration date	Apr. 14, 2016
Dividend declared, payable date	Jun. 10, 2016
Dividend declared, record date	May 20, 2016

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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- Definition

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

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- Definition

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

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- Definition

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

+ References

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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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