Income Taxes (Details 6)	12 Months Ended
	Dec. 31, 2015
Tax Year 2007 | California Franchise Tax Board
Income Tax Contingency [Line Items]
Income Tax Examination, Year under Examination	2007
Tax Year 2008 | California Franchise Tax Board
Income Tax Contingency [Line Items]
Income Tax Examination, Year under Examination	2008
Tax Year 2009 | California Franchise Tax Board
Income Tax Contingency [Line Items]
Income Tax Examination, Year under Examination	2009
Domestic Tax Authority | Tax Year 2012
Income Tax Contingency [Line Items]
Open Tax Year	2012
Domestic Tax Authority | Tax Year 2013
Income Tax Contingency [Line Items]
Open Tax Year	2013
Domestic Tax Authority | Tax Year 2014
Income Tax Contingency [Line Items]
Open Tax Year	2014
State and Local Jurisdiction | Earliest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2007
State and Local Jurisdiction | Latest Tax Year
Income Tax Contingency [Line Items]
Open Tax Year	2014