Annual report pursuant to Section 13 and 15(d)

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash Equivalents and Marketable Securities (Details)

v3.21.2
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash Equivalents and Marketable Securities (Details) - USD ($)
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Accounting Policies [Abstract]      
Credit losses on available-for-sale debt securities $ 0 $ 0 $ 0