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Commitments and Contingencies Commitments and Contingencies Disclosure (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Dec. 31, 2016
Jun. 30, 2016
Loss Contingencies [Line Items]    
Litigation Settlement, Amount $ 1.7 $ 1.5
Gain (Loss) Related to Litigation Settlement 3.2  
Loss Contingency, Range of Possible Loss, Maximum 35.0  
Insurance Claims [Member]    
Loss Contingencies [Line Items]    
Litigation Settlement, Amount $ 1.3