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Equity - Net Income and Income Tax on Non-controlling Interest (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Equity [Abstract]
Net income allocated to non-controlling interest	$ 8,660	$ 12,008
Income tax expense (benefit) allocated to non-controlling interest	(457)	440
Net income attributable to non-controlling interest	$ 9,117	$ 11,568

X

- Definition

Income (Loss) from Continuing Operations, before Income Tax, Attributable to Noncontrolling Interest

+ References

No definition available.

+ Details

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X

- Definition

Income Tax Expense (Benefit) Attributable to Noncontrolling Interest

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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X

- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=65897068&loc=SL4591551-111686

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=64809438&loc=SL4573702-111684

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