2 unchanged sentences
government debt securities, are subject to default, changes in credit rating and changes in market value.
−Removed: These investments are also subject to interest rate
−Removed: risk and will decrease in value if market interest rates increase.
−Removed: As of September 30, 2020, marketable securities were $237.0 million.
−Removed: Due to the nature of these investments, if market interest rates were to increase immediately and uniformly by 10% from levels as of September 30, 2020, the decline in fair value would not be material.
+Added: These investments are also subject to interest rate risk and will decrease in value if market interest rates increase.
+Added: As of March 31, 2021, marketable securities were $292.4 million.
+Added: Due to the nature of these investments, if market interest rates were to increase immediately and uniformly by 10% from levels as of March 31, 2021, the decline in fair value would not be material.
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.