Organization and Summary of Significant Accounting Policies - Additional Information (Details) $ in Millions	3 Months Ended
Mar. 31, 2015 USD ($)
Noncontrolling Interest [Member]
Quantifying Misstatement in Current Year Financial Statements, Amount	$ 9

Amount of each individual error being corrected in the correcting adjustment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 1.N)
-URI http://asc.fasb.org/extlink&oid=26874127&loc=d3e30840-122693

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Period Type:	duration