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Equity-based Compensation - Long-Term Incentive Awards Narrative (Details) - Equity Plan [Member] - Long Term Incentive Target Awards [Member]
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period 3 years
General and Administrative Expense [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Compensation expense $ 1.5