Quarterly report pursuant to Section 13 or 15(d)

Contingent Liabilities (Narrative) (Details)

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Contingent Liabilities (Narrative) (Details)
$ in Millions
3 Months Ended
Dec. 31, 2018
USD ($)
lawsuit
Contingent Liabilities [Abstract]  
Loss contingency, range of possible loss, maximum | $ $ 10.0
Number of class action lawsuits filed | lawsuit 2