Stock-Based Compensation - Changes in Stock Options (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($) $ / shares shares
Changes in stock options
Options outstanding, Beginning of Period | shares	781,673
Options, Exercised | shares	(41,525)
Options, Lapsed and Forfeited | shares	(93,189)
Options outstanding, End of Period | shares	646,959
Options vested and expected to vest, June 30, 2020 | shares	646,959
Options exercisable, June 30, 2020 | shares	646,959
Weighted Average Exercise Price, Options outstanding, Beginning of Period | $ / shares	$ 33.92
Weighted Average Exercise Price, Exercised | $ / shares	26.66
Weighted Average Exercise Price, Lapsed and Forfeited | $ / shares	39.36
Weighted Average Exercise Price, Options outstanding, End of Period | $ / shares	33.60
Weighted Average Exercise Price, Option vested and expected to vest, June 30, 2020 | $ / shares	33.60
Weighted Average Exercise Price, Options exercisable, June 30, 2020 | $ / shares	$ 33.60
Weighted Average Remaining Life, Options outstanding, June 30, 2020	2 years 9 months 18 days
Weighted Average Remaining Life, Options vested and expected to vest, June 30, 2020	2 years 9 months 18 days
Weighted Average Remaining Life, Options exercisable, June 30, 2020	2 years 9 months 18 days
Aggregate Intrinsic value, Options outstanding, June 30, 2020 | $	$ 1,356
Aggregate Intrinsic Value, Options vested and expected to vest, June 30, 2020 | $	1,356
Aggregate Intrinsic Value, Options exercisable, June 30, 2020 | $	$ 1,356