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Earnings Per Share Narrative (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Dividend equivalent units outstanding (shares)     46,438  
Weighted-average warrants outstanding excluded from EPS, (shares) 30,551 30,551 30,551 30,551
Stock Compensation Plan        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive securities excluded from diluted EPS calculation 553,359 1,596,116 563,257 1,219,922