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Short-Term Investments
 3 Months Ended
Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
Short-Term Investments SHORT-TERM INVESTMENTS
Short-term investments consisted of the following as of the dates presented (in thousands):
September 30, 2022
Amortized
cost
Gross
unrealized
gains
Gross
unrealized
losses
Fair value
Corporate bonds$600,560 $9 $(5,283)$595,286 
U.S. treasury securities375,171 2 (2,823)372,350 
Asset-backed securities21,193 — (138)21,055 
Certificates of deposit45,846 — — 45,846 
Total$1,042,770 $11 $(8,244)$1,034,537 
June 30, 2022
Amortized
cost
Gross
unrealized
gains
Gross
unrealized
losses
Fair value
Corporate bonds$601,987 $3 $(4,786)$597,204 
U.S. treasury securities424,644 1 (2,917)421,728 
Asset-backed securities51,622 — (216)51,406 
Certificates of deposit38,155 — — 38,155 
Total$1,116,408 $4 $(7,919)$1,108,493 
The amortized cost and fair value amounts include accrued interest receivable of $3.4 million and $3.0 million as of September 30, 2022 and June 30, 2022, respectively.
As of September 30, 2022, the fair value of the Company’s short-term investments that mature within one year and thereafter was $879.2 million and $155.4 million, respectively, or 85% and 15%, respectively, of the Company’s total short-term investments. As of June 30, 2022, the fair value of the Company’s short-term investments that mature within one year and thereafter was $961.8 million and $146.7 million, respectively, or 87% and 13%, respectively, of the Company’s total short-term investments.
As of September 30, 2022, approximately 250 out of approximately 340 investment positions were in an unrealized loss position. The following table presents gross unrealized losses and fair values for those investments that were in an unrealized loss position as of the dates presented (in thousands):
September 30, 2022
Fair value
Unrealized
losses
Corporate bonds$388,689 $(5,283)
U.S. treasury securities369,402 (2,823)
Asset backed securities20,678 (138)
Total$778,769 $(8,244)
June 30, 2022
Fair value
Unrealized
losses
Corporate bonds$392,699 $(4,786)
U.S. treasury securities411,787 (2,917)
Asset backed securities51,406 (216)
Total$855,892 $(7,919)
Most of the Company investments with unrealized losses had been in a continuous unrealized loss position for less than 12 months. Investments with unrealized losses that had been in a continuous unrealized loss position for more than 12 months have not been material. The Company does not intend to sell the investments and it is not likely that the Company will be required to sell the investments before recovery of their amortized cost bases, which will be at maturity. Therefore, the Company does not consider those unrealized investment losses as other-than-temporary impairment of the investments. There have been no significant realized gains or losses on the short-term investments during the three months ended September 30, 2022 and 2021.
The Company has not recorded an allowance for credit losses on investments that were in an unrealized loss position as of September 30, 2022 and June 30, 2022 because they were not material.