v3.3.1.900

Investments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 30, 2016 | Jan. 31, 2015
Schedule of Investments, Reported Amounts, by Category [Line Items] |  |
Available-for-sale Securities, Amortized Cost Basis | $ 71,953 |
Current available for sale Securities Unrecognized Holding Gain | 477 | $ 0
Current Available for Sale Securities Unrecognized Holding Loss | (435) | 0
Short-term investments | 226,027 | 171,201
Long-term investments | 71,953 | 216,756
Long-Term Available for Sale Securities Unrecognized Holding Gain | 22 | 0
Long-Term Available for Sale Securities Unrecognized Holding Loss | (222) | 0
Held-to-maturity Securities, Fair Value |  | 216,810
Investments, Fair Value Disclosure | 226,027 | 171,268
Investment disclosure [Abstract] |  |
Gross unrealized gains on short-term investments | 0 | 117
Gross unrealized losses on short-term investments | 0 | (50)
Gross unrealized gains from long-term held-to-maturity investments | 0 | 371
Gross unrealized losses on long-term held-to-maturity investments | 0 | (317)
Held-to-maturity Securities [Member] | Amortized cost |  |
Schedule of Investments, Reported Amounts, by Category [Line Items] |  |
Short-term investments | 0 | 154,054
Long-term investments | 0 | 216,756
Available-for-sale Securities [Member] | Carrying value |  |
Schedule of Investments, Reported Amounts, by Category [Line Items] |  |
Short-term investments | 225,985 | 17,147
Long-term investments | $ 72,153 | $ 0

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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph a, f, g -Article 7 + Details
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