Dividends Declared (Detail) - Dividend Declared	6 Months Ended
Jun. 30, 2016 $ / shares
January
Dividends Payable [Line Items]
Declaration Date	Jan. 14, 2016
Record Date	Jan. 29, 2016
Payment Date	Feb. 16, 2016
Dividend Declared Per Share	$ 0.06
January \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Jan. 14, 2016
Record Date	Jan. 29, 2016
Payment Date	Feb. 16, 2016
Dividend Declared Per Share	$ 0.06
February
Dividends Payable [Line Items]
Declaration Date	Jan. 14, 2016
Record Date	Feb. 29, 2016
Payment Date	Mar. 15, 2016
Dividend Declared Per Share	$ 0.06
February \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Jan. 14, 2016
Record Date	Feb. 29, 2016
Payment Date	Mar. 15, 2016
Dividend Declared Per Share	$ 0.06
March
Dividends Payable [Line Items]
Declaration Date	Jan. 14, 2016
Record Date	Mar. 31, 2016
Payment Date	Apr. 15, 2016
Dividend Declared Per Share	$ 0.06
March \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Jan. 14, 2016
Record Date	Mar. 31, 2016
Payment Date	Apr. 15, 2016
Dividend Declared Per Share	$ 0.06
April
Dividends Payable [Line Items]
Declaration Date	Apr. 14, 2016
Record Date	Apr. 29, 2016
Payment Date	May 16, 2016
Dividend Declared Per Share	$ 0.06
April \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Apr. 14, 2016
Record Date	Apr. 29, 2016
Payment Date	May 16, 2016
Dividend Declared Per Share	$ 0.06
May
Dividends Payable [Line Items]
Declaration Date	Apr. 14, 2016
Record Date	May 31, 2016
Payment Date	Jun. 15, 2016
Dividend Declared Per Share	$ 0.06
May \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Apr. 14, 2016
Record Date	May 31, 2016
Payment Date	Jun. 15, 2016
Dividend Declared Per Share	$ 0.06
June
Dividends Payable [Line Items]
Declaration Date	Apr. 14, 2016
Record Date	Jun. 30, 2016
Payment Date	Jul. 15, 2016
Dividend Declared Per Share	$ 0.06
June \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Apr. 14, 2016
Record Date	Jun. 30, 2016
Payment Date	Jul. 15, 2016
Dividend Declared Per Share	$ 0.06
July
Dividends Payable [Line Items]
Declaration Date	Jul. 14, 2016
Record Date	Jul. 29, 2016
Payment Date	Aug. 15, 2016
Dividend Declared Per Share	$ 0.06
July \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Jul. 14, 2016
Record Date	Jul. 29, 2016
Payment Date	Aug. 15, 2016
Dividend Declared Per Share	$ 0.06
August
Dividends Payable [Line Items]
Declaration Date	Jul. 14, 2016
Record Date	Aug. 31, 2016
Payment Date	Sep. 15, 2016
Dividend Declared Per Share	$ 0.06
August \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Jul. 14, 2016
Record Date	Aug. 31, 2016
Payment Date	Sep. 15, 2016
Dividend Declared Per Share	$ 0.06
September
Dividends Payable [Line Items]
Declaration Date	Jul. 14, 2016
Record Date	Sep. 30, 2016
Payment Date	Oct. 17, 2016
Dividend Declared Per Share	$ 0.06
September \| Noncontrolling Interest
Dividends Payable [Line Items]
Declaration Date	Jul. 14, 2016
Record Date	Sep. 30, 2016
Payment Date	Oct. 17, 2016
Dividend Declared Per Share	$ 0.06

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

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

+ References

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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