Share-Based Compensation - Summary of Nonvested Stock Awards Activity (Details) - Restricted stock unit awards - Omnibus Plan - $ / shares	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Number of Awards
Balance at the beginning of the period (in shares)	188,469	127,409	113,563
Time-based granted (in shares)	231,195	130,742	97,168
Performance-based granted (in shares)	55,478	49,529	895
Vested (in shares)	(44,873)	(36,057)	(76,214)
Forfeited (in shares)	(37,792)	(83,154)	(8,003)
Balance at the end of the period (in shares)	392,477	188,469	127,409
Weighted-Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share)	$ 35.69	$ 45.09	$ 44.99
Time-based granted (in dollars per share)	38.82	35.96	42.65
Performance-based granted (in dollars per share)	36.18	31.11	54.37
Vested (in dollars per share)	34.24	48.85	42.04
Forfeited (in dollars per share)	38.80	42.14	48.94
Balance at the end of the period (in dollars per share)	$ 37.47	$ 35.69	$ 45.09