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Fair value measurement (Tables) | 9 Months Ended
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Oct. 31, 2020
Fair Value Disclosures [Abstract] |
Fair Value, by Balance Sheet Grouping | The methods Signet uses to determine fair value on an instrument-specific basis are detailed below:
| October 31, 2020 |  | February 1, 2020 |  | November 2, 2019
(in millions) | Carrying Value |  | Level 1 |  | Level 2 |  | Carrying Value |  | Level 1 |  | Level 2 |  | Carrying Value |  | Level 1 |  | Level 2
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
US Treasury securities | $ | 6.3 |  |  | $ | 6.3 |  |  | $ | — |  |  | $ | 7.2 |  |  | $ | 7.2 |  |  | $ | — |  |  | $ | 7.2 |  |  | $ | 7.2 |  |  | $ | — |
Foreign currency contracts | — |  |  | — |  |  | — |  |  | 0.6 |  |  | — |  |  | 0.6 |  |  | 0.4 |  |  | — |  |  | 0.4 |
Commodity contracts | — |  |  | — |  |  | — |  |  | 11.8 |  |  | — |  |  | 11.8 |  |  | 10.4 |  |  | — |  |  | 10.4 |
US government agency securities | 3.7 |  |  | — |  |  | 3.7 |  |  | 4.7 |  |  | — |  |  | 4.7 |  |  | 4.9 |  |  | — |  |  | 4.9 |
Corporate bonds and notes | 7.3 |  |  | — |  |  | 7.3 |  |  | 8.5 |  |  | — |  |  | 8.5 |  |  | 8.5 |  |  | — |  |  | 8.5 |
Total assets | $ | 17.3 |  |  | $ | 6.3 |  |  | $ | 11.0 |  |  | $ | 32.8 |  |  | $ | 7.2 |  |  | $ | 25.6 |  |  | $ | 31.4 |  |  | $ | 7.2 |  |  | $ | 24.2 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency contracts | $ | (0.5) |  |  | $ | — |  |  | $ | (0.5) |  |  | $ | (0.9) |  |  | $ | — |  |  | $ | (0.9) |  |  | $ | (0.9) |  |  | $ | — |  |  | $ | (0.9) |
Commodity contracts | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (0.2) |  |  | — |  |  | (0.2) |
Total liabilities | $ | (0.5) |  |  | $ | — |  |  | $ | (0.5) |  |  | $ | (0.9) |  |  | $ | — |  |  | $ | (0.9) |  |  | $ | (1.1) |  |  | $ | — |  |  | $ | (1.1) |
Schedule of Carrying Values and Estimated Fair Values | The following table provides a summary of the carrying amount and fair value of outstanding debt:
| October 31, 2020 |  | February 1, 2020 |  | November 2, 2019
(in millions) | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value |  | Carrying Value |  | Fair Value
Long-term debt: |  |  |  |  |  |  |  |  |  |  |
Senior notes (Level 2) | $ | 146.7 |  |  | $ | 130.8 |  |  | $ | 146.4 |  |  | $ | 144.8 |  |  | $ | 146.3 |  |  | $ | 139.3 |
Term loans (Level 2) | 99.5 |  |  | 100.0 |  |  | 99.5 |  |  | 100.0 |  |  | 99.4 |  |  | 100.0 |
Total | $ | 246.2 |  |  | $ | 230.8 |  |  | $ | 245.9 |  |  | $ | 244.8 |  |  | $ | 245.7 |  |  | $ | 239.3 |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611 Reference 2: 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=117815213&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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