v3.6.0.2

Investments | 12 Months Ended
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Jan. 28, 2017
Investments [Abstract] |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | INVESTMENTS We hold available-for-sale investments in bonds and term notes. The classification of available-for-sale securities is based on our intention of the use of the investments. The unrealized holding gains or losses for the available-for-sale securities are reported in other comprehensive income. We account for our purchases and sales of investments on the trade date of the investment. Investments consisted of the following:
| Short-term Investments |  | Long-term Investments
| January 28, 2017 |  | January 30, 2016 |  | January 28, 2017 |  | January 30, 2016
| (in thousands)
Available-for-sale Investments: |  |  |  |  |  |  |
Carrying value | $ | 98,793 |  |  | $ | 225,985 |  |  | $ | 77,882 |  |  | $ | 72,153 |
Unrealized gains included in accumulated other comprehensive income | 101 |  |  | 477 |  |  | 133 |  |  | 22 |
Unrealized losses included in accumulated other comprehensive loss | (364 | ) |  | (435 | ) |  | (111 | ) |  | (222 | )
| $ | 98,530 |  |  | $ | 226,027 |  |  | $ | 77,904 |  |  | $ | 71,953 |

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27405-111563 + Details
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