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Investments and Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2020
Notes To Financial Statements [Abstract] |
Short-Term And Long-Term Marketable Securities | As of December 31, 2019, the estimated fair value of our short-term marketable securities, classified as available for sale, are as follows (in thousands):
December 31, 2019 |  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Corporate bonds |  | 210,891 |  |  | 142 |  |  | (27) |  |  | 211,006 |
U.S. government treasury bonds |  | 70,587 |  |  | 65 |  |  | (2) |  |  | 70,650 |
U.S. government agency bonds |  | 22,085 |  |  | 17 |  |  | (1) |  |  | 22,101 |
Commercial paper |  | 14,426 |  |  | — |  |  | — |  |  | 14,426 |
Certificates of deposit |  | 19 |  |  | — |  |  | — |  |  | 19 |
Total marketable securities, short-term |  | $ | 318,008 |  |  | $ | 224 |  |  | $ | (30) |  |  | $ | 318,202 |
Investments Classified by Contractual Maturity Date | As the carrying value approximates the fair value for our short-term marketable securities shown in the table above, the fair value of our short-term marketable securities as of December 31, 2019 had a contractual maturity one year or less.
Financial Assets Measured At Fair Value On Recurring Basis | The following tables summarize our financial assets measured at fair value on a recurring basis as of March 31, 2020 and December 31, 2019 (in thousands):
Description |  | Balance as of March 31, 2020 |  | Level 1 |  | Level 2 |  | Level 3 |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 36,683 |  |  | $ | 36,683 |  |  | $ | — |  |  | $ | — |  |  |
Prepaid expenses and other current assets: |  |  |  |  |  |  |  |  |  |
Israeli funds |  | 3,293 |  |  | — |  |  | 3,293 |  |  | — |  |  |
Current unsecured promissory note |  | 27,914 |  |  | — |  |  | — |  |  | 27,914 |  |  |
|  | $ | 67,890 |  |  | $ | 36,683 |  |  | $ | 3,293 |  |  | $ | 27,914 |  |  |
Description |  | Balance as of December 31, 2019 |  | Level 1 |  | Level 2 |  | Level 3 |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 236,923 |  |  | $ | 236,923 |  |  | $ | — |  |  | $ | — |  |  |
Short-term investments: |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | 211,006 |  |  | — |  |  | 211,006 |  |  |  | — |  |  |
Commercial paper |  | 14,426 |  |  | — |  |  | 14,426 |  |  | — |  |  |
U.S. government treasury bonds |  | 70,650 |  |  | 70,650 |  |  | — |  |  |  | — |  |  |
U.S. government agency bonds |  | 22,101 |  |  | — |  |  | 22,101 |  |  | — |  |  |
Certificates of deposit |  | 19 |  |  | — |  |  | 19 |  |  | — |  |  |
Prepaid expenses and other current assets: |  |  |  |  |  |  |  |  |  |
Israeli funds |  | 3,226 |  |  | — |  |  | 3,226 |  |  | — |  |  |
Current unsecured promissory note |  | 25,005 |  |  | — |  |  | — |  |  | 25,005 |  |  |
Other assets: |  |  |  |  |  |  |  |  |  |
Long-term unsecured promissory note |  | 7,328 |  |  | — |  |  | — |  |  | 7,328 |  |  |
|  | $ | 590,684 |  |  | $ | 307,573 |  |  | $ | 250,778 |  |  | $ | 32,333 |  |  |
Notional value of derivative instruments | The following table presents the gross notional value of all our foreign exchange forward contracts outstanding as of March 31, 2020 and December 31, 2019 (in thousands):
| March 31, 2020 |  |
| Local Currency Amount |  | Notional Contract Amount (USD)
Euro | €67,500 |  | $ | 74,274 |
Chinese Yuan | ¥517,000 |  | 72,825 |
Canadian Dollar | C$47,000 |  | 33,103 |
British Pound | £23,200 |  | 28,894 |
Brazilian Real | R$150,000 |  | 28,765 |
Japanese Yen | ¥2,685,000 |  | 24,916 |
Israeli Shekel | ILS26,000 |  | 7,349 |
Mexican Peso | M$160,000 |  | 6,840 |
Australian Dollar | A$5,500 |  | 3,375 |
|  |  | $ | 280,341 |
| December 31, 2019 |  |
| Local Currency Amount |  | Notional Contract Amount (USD)
Euro | €97,000 |  | $ | 108,870 |
Chinese Yuan | ¥431,000 |  | 60,702 |
Canadian Dollar | C$52,000 |  | 39,802 |
British Pound | £28,000 |  | 36,770 |
Brazilian Real | R$130,000 |  | 32,185 |
Japanese Yen | ¥3,000,000 |  | 27,604 |
Israeli Shekel | ILS63,700 |  | 18,439 |
Mexican Peso | M$140,000 |  | 7,398 |
Australian Dollar | A$3,000 |  | 2,101 |
|  |  | $ | 333,871 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References No definition available. + Details
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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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