Net Income Per Share - Stock Options Excluded from the Computation of Dilutive Weighted Average Shares Outstanding (Details) - $ / shares	3 Months Ended	9 Months Ended
	Mar. 31, 2020	Mar. 31, 2020
Stock Options
Employee equity awards were excluded from the calculation of dilutive weighted average shares outstanding because their effect would be anti-dilutive
Employee equity awards (in shares)	291,679	290,007
Stock Options
Employee equity awards were excluded from the calculation of dilutive weighted average shares outstanding because their effect would be anti-dilutive
Exercise price range, low end of range (in dollars per share)		$ 116.90
Exercise price range, high end of range (in dollars per share)		$ 138.14