Stock-Based Compensation - Changes in Stock Options (Details)	3 Months Ended
	Sep. 30, 2016 USD ($) $ / shares shares
Changes in stock options
Options outstanding, June 30, 2016 | shares	2,547,809
Options, Granted | shares	0
Options, Exercised | shares	(8,359)
Options, Lapsed or Forfeited | shares	(90,230)
Options outstanding, September 30, 2016 | shares	2,449,220
Options vested and expected to vest, September 30, 2016 | shares	2,413,580
Options exercisable, September 30, 2016 | shares	1,826,158
Weighted Average Exercise Price, Options outstanding, June 30, 2016 | $ / shares	$ 33.72
Weighted Average Exercise Price, Granted | $ / shares	0.00
Weighted Average Exercise Price, Exercised | $ / shares	22.83
Weighted Average Exercise Price, Lapsed or Forfeited | $ / shares	28.36
Weighted Average Exercise Price, Options outstanding, September 30, 2016 | $ / shares	33.95
Weighted Average Exercise Price, Option vested and expected to vest, September 30, 2016 | $ / shares	34.02
Weighted Average Exercise Price, Options exercisable, September 30, 2016 | $ / shares	$ 35.84
Weighted Average Remaining Life, Options outstanding, September 30, 2016	4 years 7 months 6 days
Weighted Average Remaining Life, Options vested and expected to vest, September 30, 2016	4 years 7 months 6 days
Weighted Average Remaining Life, Options exercisable, September 30, 2016	3 years 2 months 12 days
Aggregate Intrinsic value, Options outstanding, September 30, 2016 | $	$ 3,431,000
Aggregate Intrinsic Value, Options vested and expected to vest, September 30, 2016 | $	3,348,000
Aggregate Intrinsic Value, Options exercisable, September 30, 2016 | $	$ 1,245,000