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Equity-Based Compensation (Equity Based Awards - Settled in Stock) (Details) - Performance stock units - shares
1 Months Ended 3 Months Ended
Feb. 28, 2017
Mar. 31, 2017
Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Units awarded (in shares)   98,482 0
Performance period   1 year  
2015 Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Units awarded that will convert to shares (in shares) 78,482    
Units awarded (in shares) 20,000    
Performance period 3 years