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Dividends Declared (Detail) - Dividend Declared - $ / shares	1 Months Ended
	Jun. 30, 2017	May 31, 2017	Apr. 30, 2017	Mar. 31, 2017	Feb. 28, 2017	Jan. 31, 2017
Dividends Payable [Line Items]
Declaration Date				Jan. 12, 2017	Jan. 12, 2017	Jan. 12, 2017
Record Date				Mar. 31, 2017	Feb. 28, 2017	Jan. 31, 2017
Payment Date				Apr. 17, 2017	Mar. 15, 2017	Feb. 15, 2017
Dividend Declared Per Share				$ 0.06	$ 0.06	$ 0.06
Noncontrolling Interests
Dividends Payable [Line Items]
Declaration Date				Jan. 12, 2017	Jan. 12, 2017	Jan. 12, 2017
Record Date				Mar. 31, 2017	Feb. 28, 2017	Jan. 31, 2017
Payment Date				Apr. 17, 2017	Mar. 15, 2017	Feb. 15, 2017
Dividend Declared Per Share				$ 0.06	$ 0.06	$ 0.06
Scenario, Forecast
Dividends Payable [Line Items]
Declaration Date	Apr. 12, 2017	Apr. 12, 2017
Record Date	Jun. 30, 2017	May 31, 2017
Payment Date	Jul. 17, 2017	Jun. 15, 2017
Dividend Declared Per Share	$ 0.06	$ 0.06
Scenario, Forecast | Noncontrolling Interests
Dividends Payable [Line Items]
Declaration Date	Apr. 12, 2017	Apr. 12, 2017
Record Date	Jun. 30, 2017	May 31, 2017
Payment Date	Jul. 17, 2017	Jun. 15, 2017
Dividend Declared Per Share	$ 0.06	$ 0.06
Subsequent Event
Dividends Payable [Line Items]
Declaration Date			Apr. 12, 2017
Record Date			Apr. 28, 2017
Payment Date			May 15, 2017
Dividend Declared Per Share			$ 0.06
Subsequent Event | Noncontrolling Interests
Dividends Payable [Line Items]
Declaration Date			Apr. 12, 2017
Record Date			Apr. 28, 2017
Payment Date			May 15, 2017
Dividend Declared Per Share			$ 0.06

X

- Definition

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

+ References

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

+ Details

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X

- 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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- Definition

Date the dividend to be paid was declared, 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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- 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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- Definition

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+ References

No definition available.

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