Share-Based Compensation - Summary of Nonvested Stock Awards Activity (Details) - Restricted stock unit awards - Omnibus Plan - $ / shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Number of Awards
Balance at the beginning of the period (in shares)	572,028	392,477	188,469
Time-based granted (in shares)	132,421	138,718	231,195
Performance-based granted (in shares)		124,432	55,478
Vested (in shares)	(175,554)	(62,215)	(44,873)
Forfeited (in shares)	(54,560)	(21,384)	(37,792)
Balance at the end of the period (in shares)	474,335	572,028	392,477
Weighted-Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share)	$ 41.54	$ 37.47	$ 35.69
Time-based granted (in dollars per share)	57.92	41.49	38.82
Performance-based granted (in dollars per share)		50.99	36.18
Vested (in dollars per share)	38.39	35.35	34.24
Forfeited (in dollars per share)	41.62	39.48	38.80
Balance at the end of the period (in dollars per share)	$ 44.66	$ 41.54	$ 37.47