Equity-Based Compensation - Schedule of Performance-Based RSUs (Details) - shares	Sep. 30, 2017	Feb. 09, 2017	Sep. 30, 2016	Feb. 16, 2016	Feb. 05, 2015
Performance and Market-based Restricted Stock Units
Share-based Compensation
Maximum potential units outstanding at June 30, 2016 - shares	0
Performance-Based RSUs
Share-based Compensation
Target Units Outstanding		71,796	4,000	92,840	62,000
Shared Based Compensation Maximum Potential Awards		143,592	8,000	185,680	124,000
Performance Shares [Member]
Share-based Compensation
Target Units Outstanding		40,669
Shared Based Compensation Maximum Potential Awards		40,669