Share-Based Compensation - Options Rollforward (Details) - Stock options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2017
Awards
Outstanding at the beginning of the period (in shares)	1,475
Granted (in shares)	50
Exercised (in shares)	(404)
Forfeited, expired or repurchased (in shares)	(20)
Outstanding at the end of the period (in shares)	1,101	1,475
Vested and expected to vest, Awards (in shares)	1,096
Exercisable at the end of year (in shares)	1,044
Stock options, Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 18.02
Granted (in dollars per share)	21.43
Exercised (in dollars per share)	7.13
Forfeited, expired or repurchased (in dollars per share)	32.31
Outstanding at the end of the period (in dollars per share)	21.93	$ 18.02
Vested and expected to vest, Weighted-Average Exercise Price (in dollars per share)	21.92
Exercisable at the end of the period (in dollars per share)	$ 21.60
Aggregate Intrinsic Value
Exercised (in dollars)	$ 3,897
Outstanding at the end of the period (in dollars)	4,205	$ 12,212
Vested and expected to vest, Aggregate Intrinsic Value	4,205
Exercisable at the end of the period (in dollars)	$ 4,205
Weighted Average Remaining Contractual Life (yrs.)
Outstanding at the end of the period (in years)	5 years 7 months 6 days	5 years 8 months 12 days
Vested and expected to vest, Weighted Average Remaining Contractual Life	5 years 7 months 6 days
Exercisable at the end of the period (in years)	5 years 4 months 24 days