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Balance Sheet Account Details (Tables) | 12 Months Ended
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Dec. 31, 2020
Other Balance Sheet Details [Abstract] |
Schedule of Investment Categories | Excluding our investments in Viking, the following table summarizes the various investment categories at December 31, 2020 and 2019 (in thousands):
| Cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Estimated fair value
December 31, 2020 |  |  |  |  |  |  |
Short-term investments |  |  |  |  |  |  |
Mutual fund | $ | 151,512 |  |  | $ | 386 |  |  | $ | — |  |  | $ | 151,898 |
Bank deposits | 84,120 |  |  | 35 |  |  | (1) |  |  | 84,154 |
Commercial paper | 45,459 |  |  | 27 |  |  | (1) |  |  | 45,485 |
Corporate bonds | 30,512 |  |  | 99 |  |  | (1) |  |  | 30,610 |
Agency bonds | 4,499 |  |  | 2 |  |  | — |  |  | 4,501 |
Corporate equity securities | 4,466 |  |  | 360 |  |  | (1,388) |  |  | 3,438 |
Treasury bill | 3,999 |  |  | — |  |  | — |  |  | 3,999 |
Warrants | — |  |  | 393 |  |  | — |  |  | 393 |
| $ | 324,567 |  |  | $ | 1,302 |  |  | $ | (1,391) |  |  | $ | 324,478 |
December 31, 2019 |  |  |  |  |  |  |
Short-term investments |  |  |  |  |  |  |
Bank deposits | $ | 411,690 |  |  | $ | 188 |  |  | $ | (3) |  |  | $ | 411,875 |
Corporate bonds | 63,818 |  |  | 161 |  |  | — |  |  | 63,979 |
Corporate equity securities | 4,506 |  |  | 416 |  |  | (1,850) |  |  | 3,072 |
Commercial paper | 210,525 |  |  | 43 |  |  | (16) |  |  | 210,552 |
Warrants | — |  |  | 125 |  |  | — |  |  | 125 |
Mutual Fund | 250,636 |  |  | — |  |  | (249) |  |  | 250,387 |
| $ | 941,175 |  |  | $ | 933 |  |  | $ | (2,118) |  |  | $ | 939,990 |
Schedule of Available-for-Sale Debt Securities by Contractual Maturity | The following table summarizes our available-for-sale debt securities by contractual maturity (in thousands):
| December 31, 2020
| Amortized Cost |  | Fair Value
Within one year | $ | 141,732 |  |  | $ | 141,793 |
After one year through five years | 26,856 |  |  | 26,956 |
After five years | — |  |  | — |
Total | $ | 168,588 |  |  | $ | 168,749 |
Schedule of Available-for-Sale Debt Securities in an Unrealized Loss Position | The following table summarizes our available-for-sale debt securities in an unrealized loss position (in thousands):
| Less than 12 months |  | 12 months or greater |  | Total
| Gross Unrealized Losses |  | Estimated Fair Value |  | Gross Unrealized Losses |  | Estimated Fair Value |  | Gross Unrealized Losses |  | Estimated Fair Value
December 31, 2020 |  |  |  |  |  |  |  |  |  |  |
Bank deposits | $ | (1) |  |  | $ | 14,013 |  |  | $ | — |  |  | $ | — |  |  | $ | (1) |  |  | $ | 14,013 |
Corporate bonds | (1) |  |  | 4,526 |  |  | — |  |  | — |  |  | (1) |  |  | 4,526 |
Commercial paper | (1) |  |  | 7,693 |  |  | — |  |  | — |  |  | (1) |  |  | 7,693 |
Total | $ | (3) |  |  | $ | 26,232 |  |  | $ | — |  |  | $ | — |  |  | $ | (3) |  |  | $ | 26,232 |
December 31, 2019 |  |  |  |  |  |  |  |  |  |  |
Bank deposits | $ | (3) |  |  | $ | 58,584 |  |  | $ | — |  |  | $ | — |  |  | $ | (3) |  |  | $ | 58,584 |
Commercial paper | (16) |  |  | 79,362 |  |  | — |  |  | — |  |  | (16) |  |  | 79,362 |
Total | $ | (19) |  |  | $ | 137,946 |  |  | $ | — |  |  | $ | — |  |  | $ | (19) |  |  | $ | 137,946 |
Schedule of Property and Equipment | Property and equipment are stated at cost and consists of the following (in thousands):
| December 31,
| 2020 |  | 2019
Lab and office equipment | $ | 14,666 |  |  | $ | 6,307 |
Leasehold improvements | 3,519 |  |  | 2,729 |
Computer equipment and software | 1,056 |  |  | 999 |
| 19,241 |  |  | 10,035 |
Less accumulated depreciation and amortization | (4,807) |  |  | (2,850) |
| $ | 14,434 |  |  | $ | 7,185 |
Schedule of Goodwill and Other Identifiable Intangible Assets | Goodwill and identifiable intangible assets consist of the following (in thousands):
| As of December 31,
| 2020 |  | 2019
Indefinite-lived intangible assets |  |  |
Goodwill | $ | 189,662 |  |  | $ | 95,229 |
Definite-lived intangible assets |  |  |
Complete technology | 277,740 |  |  | 242,813 |
Less: Accumulated amortization | (63,600) |  |  | (50,203) |
Trade name | 2,642 |  |  | 2,642 |
Less: Accumulated amortization | (1,312) |  |  | (1,180) |
Customer relationships | 40,700 |  |  | 29,600 |
Less: Accumulated amortization | (15,597) |  |  | (13,224) |
Contractual relationships | 362,000 |  |  | — |
Less: Accumulated amortization | (7,243) |  |  | — |
Total goodwill and other identifiable intangible assets, net | $ | 784,992 |  |  | $ | 305,677 |
Schedule of Accrued Liabilities | Accrued liabilities consist of the following (in thousands):
| December 31,
| 2020 |  | 2019
Compensation | $ | 8,810 |  |  | $ | 1,986 |
Professional fees | 977 |  |  | 1,135 |
Amounts owed to former licensees | 421 |  |  | 381 |
Royalties owed to third parties | 693 |  |  | — |
Return reserve | 687 |  |  | 3,027 |
Acquisition related liabilities | 1,500 |  |  | — |
Subcontractor | 733 |  |  | — |
Supplier | 604 |  |  | — |
Other | 4,105 |  |  | 2,052 |
| $ | 18,530 |  |  | $ | 8,581 |
Schedule of Contingent Liabilities | The following table summarizes rollfoward of contingent liabilities as of December 2020 and 2019 (in thousands):
| December 31, 2018 | Payments | Fair Value Adjustment |  |  | Repurchases | December 31, 2019 | Additional Contingent Liabilities | Payments | Fair Value Adjustment | Repurchases | December 31, 2020
Cydex | $ | 514 |  | $ | (50) |  | $ | (116) |  |  |  | $ | — |  | $ | 348 |  | $ | — |  | $ | — |  | $ | 160 |  | $ | — |  | $ | 508 |
Metabasis | 5,551 |  | — |  | 904 |  |  |  | (520) |  | 5,935 |  | — |  | — |  | (1,867) |  | (247) |  | 3,821 |
Crystal | 6,477 |  | (3,000) |  | (818) |  |  |  | — |  | 2,659 |  | — |  | (1,800) |  | (59) |  | — |  | 800 |
Icagen | — |  | — |  | — |  |  |  | — |  | — |  | 4,800 |  | (525) |  | 2,129 |  | — |  | 6,404 |
Pfenex | — |  | — |  | — |  |  |  | — |  | — |  | 37,000 |  | — |  | 600 |  | — |  | 37,600 |
Total | $ | 12,542 |  | $ | (3,050) |  | $ | (30) |  |  |  | $ | (520) |  | $ | 8,942 |  | $ | 41,800 |  | $ | (2,325) |  | $ | 963 |  | $ | (247) |  | $ | 49,133 |

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