Stock-Based Compensation - Changes in Stock Options (Details)	9 Months Ended
	Mar. 31, 2016 USD ($) $ / shares shares
Changes in stock options
Options outstanding, June 30, 2015 | shares	2,094,037
Options, Granted | shares	885,403
Options, Exercised | shares	(38,569)
Options, Lapsed or Forfeited | shares	(369,945)
Options outstanding, March 31, 2016 | shares	2,570,926
Options vested and expected to vest, March 31, 2016 | shares	2,512,561
Options exercisable, March 31, 2016 | shares	1,648,381
Weighted Average Exercise Price, Options outstanding, June 30, 2015 | $ / shares	$ 36.08
Weighted Average Exercise Price, Granted | $ / shares	28.29
Weighted Average Exercise Price, Exercised | $ / shares	25.02
Weighted Average Exercise Price, Lapsed or Forfeited | $ / shares	34.95
Weighted Average Exercise Price, Options outstanding, March 31, 2016 | $ / shares	33.72
Weighted Average Exercise Price, Option vested and expected to vest, March 31, 2016 | $ / shares	33.80
Weighted Average Exercise Price, Options exercisable, March 31, 2016 | $ / shares	$ 35.36
Weighted Average Remaining Life, Options outstanding, March 31, 2016	5 years 1 month
Weighted Average Remaining Life, Options vested and expected to vest, March 31, 2016	5 years
Weighted Average Remaining Life, Options exercisable, March 31, 2016	2 years 11 months
Aggregate Intrinsic value, Options outstanding, March 31, 2016 | $	$ 740,000
Aggregate Intrinsic Value, Options vested and expected to vest, March 31, 2016 | $	720,000
Aggregate Intrinsic Value, Options exercisable, March 31, 2016 | $	$ 145,000