Investments (Tables)
|
3 Months Ended |
May 05, 2018 |
|---|
| Investments, Debt and Equity Securities [Abstract] |
|
| Summary of Investments |
The following tables summarize the Company’s investments (in thousands): | | | | | | | | | | | | | | | | | | May 5, 2018 | | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Estimated Fair Value | Short-term investments: | | | | | | | | Available-for-sale: | | | | | | | | U.S. government and agency debt | $ | 194,192 |
| | $ | 32 |
| | $ | (521 | ) | | $ | 193,703 |
| Foreign government and agency debt | 1,810 |
| | — |
| | (14 | ) | | 1,796 |
| Municipal debt securities | 1,315 |
| | — |
| | (1 | ) | | 1,314 |
| Corporate debt securities | 388,194 |
| | 446 |
| | (2,158 | ) | | 386,482 |
| Asset backed securities | 28,954 |
| | — |
| | (196 | ) | | 28,758 |
| Held-to-maturity: | | | | | | | | Time deposits | 100,000 |
| | — |
| | — |
| | 100,000 |
| Total short-term investments | 714,465 |
| | 478 |
| | (2,890 | ) | | 712,053 |
| Total investments | $ | 714,465 |
| | $ | 478 |
| | $ | (2,890 | ) | | $ | 712,053 |
|
| | | | | | | | | | | | | | | | | | February 3, 2018 | | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Estimated Fair Value | Short-term investments: | | | | | | | | Available-for-sale: | | | | | | | | U.S. government and agency debt | $ | 248,336 |
| | $ | 49 |
| | $ | (644 | ) | | $ | 247,741 |
| Foreign government and agency debt | 7,004 |
| | — |
| | (17 | ) | | 6,987 |
| Municipal debt securities | 2,734 |
| | — |
| | (6 | ) | | 2,728 |
| Corporate debt securities | 504,609 |
| | 469 |
| | (1,999 | ) | | 503,079 |
| Asset backed securities | 42,429 |
| | 3 |
| | (177 | ) | | 42,255 |
| Held-to-maturity: | | | | | | | | Time deposits | 150,000 |
| | — |
| | — |
| | 150,000 |
| Total short-term investments | 955,112 |
| | 521 |
| | (2,843 | ) | | 952,790 |
| Total investments | $ | 955,112 |
| | $ | 521 |
| | $ | (2,843 | ) | | $ | 952,790 |
|
|
| Gross Realized Gains and Losses on Sales of Available-for-Sale Securities |
Gross realized gains and gross realized losses on sales of available-for-sale securities are presented in the following tables (in thousands): | | | | | | | | | | Three Months Ended | | May 5,
2018 | | April 29,
2017 | Gross realized gains | $ | 2 |
| | $ | 69 |
| Gross realized losses | (862 | ) | | (44 | ) | Total net realized gains (losses) | $ | (860 | ) | | $ | 25 |
|
|
| Available-for-sale Securities Classified by Contractual Maturities |
The contractual maturities of available-for-sale securities are presented in the following tables (in thousands): | | | | | | | | | | | | | | | | | | May 5, 2018 | | February 3, 2018 | | Amortized Cost | | Estimated Fair Value | | Amortized Cost | | Estimated Fair Value | Due in one year or less | $ | 445,026 |
| | $ | 444,314 |
| | $ | 554,247 |
| | $ | 553,866 |
| Due between one and five years | 269,439 |
| | 267,740 |
| | 400,866 |
| | 398,924 |
| Due over five years | — |
| | — |
| | — |
| | — |
| | $ | 714,465 |
| | $ | 712,054 |
| | $ | 955,113 |
| | $ | 952,790 |
|
|
| Unrealized Loss Position Investments |
For individual securities that have been in a continuous unrealized loss position, the fair value and gross unrealized loss for these securities, aggregated by investment category and length of time in an unrealized position, are presented in the following tables (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | May 5, 2018 | | Less than 12 months | | 12 months or more | | Total | | Fair Value | | Unrealized Loss | | Fair Value | | Unrealized Loss | | Fair Value | | Unrealized Loss | U.S. government and agency debt | $ | 123,181 |
| | $ | (219 | ) | | $ | 45,137 |
| | $ | (302 | ) | | $ | 168,318 |
| | $ | (521 | ) | Foreign government and agency debt | — |
| | — |
| | 1,796 |
| | (13 | ) | | 1,796 |
| | (13 | ) | Municipal debt securities | 1,314 |
| | (1 | ) | | — |
| | — |
| | 1,314 |
| | (1 | ) | Corporate debt securities | 195,971 |
| | (1,660 | ) | | 39,594 |
| | (498 | ) | | 235,565 |
| | (2,158 | ) | Asset backed securities | 26,146 |
| | (158 | ) | | 2,161 |
| | (39 | ) | | 28,307 |
| | (197 | ) | Total securities | $ | 346,612 |
| | $ | (2,038 | ) | | $ | 88,688 |
| | $ | (852 | ) | | $ | 435,300 |
| | $ | (2,890 | ) | | | | | | | | | | | | | | | | | | | | | | | | | | February 3, 2018 | | Less than 12 months | | 12 months or more | | Total | | Fair Value | | Unrealized Loss | | Fair
Value | | Unrealized
Loss | | Fair
Value | | Unrealized
Loss | U.S. government and agency debt | $ | 148,538 |
| | $ | (298 | ) | | $ | 51,332 |
| | $ | (346 | ) | | $ | 199,870 |
| | $ | (644 | ) | Foreign government and agency debt | 3,993 |
| | (1 | ) | | 2,994 |
| | (16 | ) | | 6,987 |
| | (17 | ) | Municipal debt securities | 1,969 |
| | (6 | ) | | — |
| | — |
| | 1,969 |
| | (6 | ) | Corporate debt securities | 253,380 |
| | (1,514 | ) | | 46,805 |
| | (485 | ) | | 300,185 |
| | (1,999 | ) | Asset backed securities | 37,636 |
| | (145 | ) | | 2,167 |
| | (32 | ) | | 39,803 |
| | (177 | ) | Total securities | $ | 445,516 |
| | $ | (1,964 | ) | | $ | 103,298 |
| | $ | (879 | ) | | $ | 548,814 |
| | $ | (2,843 | ) |
|