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MARKETABLE SECURITIES | 12 Months Ended
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Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract] |
MARKETABLE SECURITIES |
NOTE 4:- | MARKETABLE SECURITIES
Marketable securities with contractual maturities of up to one year are as follows:
|  | December 31, |
|  | 2019 |  |  | 2018 |
|  | Amortized cost |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value |  |  | Amortized cost |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value |
Government and corporate debentures - fixed interest rate |  | $ | 1,078.3 |  |  | $ | 1.8 |  |  | $ | (0.3 | ) |  |  | $1,079.8 |  |  | $ | 1,203.3 |  |  | $ | *) |  |  | $ | (5.0) |  |  | $ | 1,198.3 |
Government-sponsored enterprises debentures |  |  | 205.5 |  |  |  | 0.2 |  |  |  | (0.2 | ) |  |  | 205.5 |  |  |  | 231.7 |  |  |  | *) |  |  |  | (1.2) |  |  |  | 230.5 |
Government and corporate debentures - floating interest rate |  |  | 14.7 |  |  |  | 0.1 |  |  |  | - |  |  |  | 14.8 |  |  |  | 13.9 |  |  |  | - |  |  |  | *) |  |  |  | 13.9 |
|  | $ | 1,298.5 |  |  | $ | 2.1 |  |  | $ | (0.5 | ) |  |  | $ 1,300.1 |  |  | $ | 1,448.9 |  |  | $ | *) |  |  | $ | (6.2) |  |  | $ | 1,442.7 |
| *) | Represents an amount lower than $0.1
Marketable securities with contractual maturities of over one year through five years are as follows:
|  | December 31,
|  | 2019 |  | 2018
|  | Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair value |  | Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair value
Government and corporate debentures - fixed interest rate |  | $ | 1,903.6 |  |  | $ | 25.9 |  |  | $ | (0.4 | ) |  | $ | 1,929.1 |  |  | $ | 1,819.5 |  |  | $ | 1.1 |  |  | $ | (21.6 | ) |  | $ | 1,799.0 |
Government-sponsored enterprises debentures |  |  | 269.8 |  |  |  | 0.6 |  |  |  | (0.4 | ) |  |  | 270.0 |  |  |  | 383.2 |  |  |  | 0.3 |  |  |  | (4.2 | ) |  |  | 379.3 |
Government and corporate debentures - floating interest rate |  |  | 169.3 |  |  |  | 0.4 |  |  |  | * | ) |  |  | 169.7 |  |  |  | 109.9 |  |  |  | * ) |  |  |  | (0.9 | ) |  |  | 109.0 |
|  | $ | 2,342.7 |  |  | $ | 26.9 |  |  | $ | (0.8 | ) |  | $ | 2,368.8 |  |  | $ | 2,312.6 |  |  | $ | 1.4 |  |  | $ | (26.7 | ) |  | $ | 2,287.3 |
| *) | Represents an amount lower than $0.1
Investments with continuous unrealized losses for less than 12 months and for 12 months or greater and their related fair values were as follows:
|  | December 31, 2019
|  | Less than 12 months |  | 12 months or greater |  | Total
|  | Fair value |  | Unrealized losses |  | Fair Value |  | Unrealized losses |  | Fair value |  | Unrealized losses
Government and corporate debentures - fixed interest rate |  | $ | 227.9 |  |  | $ | (0.3 | ) |  | $ | 332.5 |  |  | $ | (0.4 | ) |  | $ | 560.4 |  |  | $ | (0.7 | )
Government-sponsored enterprises debentures |  |  | 117.3 |  |  |  | (0.3 | ) |  |  | 123.6 |  |  |  | (0.2 | ) |  |  | 240.9 |  |  |  | (0.5 | )
Government and corporate debentures - floating interest rate |  |  | 19.9 |  |  |  | * | ) |  |  | 10.5 |  |  |  | * | ) |  |  | 30.4 |  |  |  | * | )
|  | $ | 365.1 |  |  | $ | (0.6 | ) |  | $ | 466.6 |  |  | $ | (0.6 | ) |  | $ | 831.7 |  |  | $ | (1.2 | )
|  | December 31, 2018
|  | Less than 12 months |  | 12 months or greater |  | Total
|  | Fair value |  | Unrealized losses |  | Fair Value |  | Unrealized losses |  | Fair value |  | Unrealized losses
Government and corporate debentures - fixed interest rate |  | $ | 807.3 |  |  | $ | (4.4 | ) |  | $ | 1,852.6 |  |  | $ | (22.3 | ) |  | $ | 2,659.9 |  |  | $ | (26.7 | )
Government-sponsored enterprises debentures |  |  | 40.2 |  |  |  | (0.1 | ) |  |  | 429.1 |  |  |  | (5.2 | ) |  |  | 469.3 |  |  |  | (5.3 | )
Government and corporate debentures - floating interest rate |  |  | 115.5 |  |  |  | (0.9 | ) |  |  | 5.4 |  |  |  | * | ) |  |  | 120.9 |  |  |  | (0.9 | )
|  | $ | 963.0 |  |  | $ | (5.4 | ) |  | $ | 2,287.1 |  |  | $ | (27.5 | ) |  | $ | 3,250.1 |  |  | $ | (32.9 | )
| *) | Represents an amount lower than $0.1
As of December 31, 2019 and 2018, interest receivable amounted to $24.4 and $22.9 , respectively, and is included within prepaid expenses and other assets in the balance sheets.

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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