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Short-Term Investments - Additional Information (Details)
6 Months Ended
Dec. 31, 2022
USD ($)
InvestmentPosition
Jun. 30, 2022
USD ($)
Schedule Of Available For Sale Securities [Line Items]    
Accrued interest receivable $ 3,400,000 $ 3,000,000
Short-term investments mature within one year 915,900,000 961,800,000
Short-term investments mature thereafter $ 150,700,000 $ 146,700,000
Percentage of short-term investments maturing within one year 86.00% 87.00%
Percentage of short-term investments maturing thereafter 14.00% 13.00%
Number of investments in unrealized loss positions | InvestmentPosition 210  
Number of investment positions | InvestmentPosition 350  
Allowance for credit losses on investments that were in an unrealized loss position $ 0 $ 0