Summary of Fair Value and Amortized Cost of Cash Equivalents and Available-for-sale Investments by Major Security Type |
The fair value and amortized cost of cash equivalents and available-for-sale investments by major security type are presented in the following table (in thousands):
|
|
March 31, 2021 |
|
|
|
Amortized
Cost |
|
|
Unrealized
Gain |
|
|
Unrealized
Loss |
|
|
Estimated
Fair
Value |
|
Cash equivalents and investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Money market fund |
|
$ |
89,221 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
89,221 |
|
U.S. treasury bills |
|
|
6,000 |
|
|
|
— |
|
|
|
— |
|
|
|
6,000 |
|
Corporate debt securities |
|
|
6,500 |
|
|
|
6 |
|
|
|
— |
|
|
|
6,506 |
|
Commercial paper |
|
|
104,892 |
|
|
|
— |
|
|
|
— |
|
|
|
104,892 |
|
U.S. government bonds |
|
|
5,037 |
|
|
|
1 |
|
|
|
— |
|
|
|
5,038 |
|
Total cash equivalents and investments |
|
$ |
211,650 |
|
|
$ |
7 |
|
|
$ |
— |
|
|
$ |
211,657 |
|
Classified as: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash equivalents |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ |
89,221 |
|
Short-term investments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
122,436 |
|
Total cash equivalents and investments |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ |
211,657 |
|
|
|
December 31, 2020 |
|
|
|
Amortized
Cost |
|
|
Unrealized
Gain |
|
|
Unrealized
Loss |
|
|
Estimated
Fair
Value |
|
Cash equivalents and investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Money market fund |
|
$ |
127,783 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
127,783 |
|
U.S. treasury bills |
|
|
29,995 |
|
|
|
2 |
|
|
|
— |
|
|
|
29,997 |
|
Corporate debt securities |
|
|
23,126 |
|
|
|
75 |
|
|
|
— |
|
|
|
23,201 |
|
Commercial paper |
|
|
41,460 |
|
|
|
— |
|
|
|
— |
|
|
|
41,460 |
|
U.S. government bonds |
|
|
5,067 |
|
|
|
— |
|
|
|
(1 |
) |
|
|
5,066 |
|
Asset-backed securities |
|
|
2,001 |
|
|
|
5 |
|
|
|
— |
|
|
|
2,006 |
|
Total cash equivalents and investments |
|
$ |
229,432 |
|
|
$ |
82 |
|
|
$ |
(1 |
) |
|
$ |
229,513 |
|
Classified as: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Cash equivalents |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ |
139,779 |
|
Short-term investments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
89,734 |
|
Total cash equivalents and investments |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ |
229,513 |
|
|