Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Common Share - Narrative (Details)

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Earnings Per Common Share - Narrative (Details)
3 Months Ended
Dec. 31, 2017
shares
Officer  
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]  
Antidilutive securities excluded from computation of earnings per share (in shares) 750,000