Schedule of Potential Shares of Common Stock Excluded from the Calculation of Diluted Net Income Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total anti-dilutive shares	11,114	7,469	10,547	7,456
0.25% Convertible Senior Note Due 2022
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total anti-dilutive shares	7,331	7,331	7,331	7,331
0.50% Finisar Convertible Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total anti-dilutive shares	391		502
Common Stock Equivalents
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total anti-dilutive shares	3,392	138	2,714	125