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Contingencies (Details) - California DOI [Member] - USD ($)
$ in Millions
1 Months Ended
Feb. 09, 2015
Mar. 31, 2015
Jan. 12, 2017
Nov. 17, 2016
Loss Contingencies [Line Items]        
Litigation, penalty assessed $ 27.6      
Payments for assessed penalty   $ 27.6    
Penalty interest assessed, statutory rate       7.00%
Litigation, penalty refund     $ 27.6