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Goodwill and intangibles - Composition of Finite-Lived Intangibles (Details) - USD ($) $ in Millions | Nov. 03, 2018 | Feb. 03, 2018 | Oct. 28, 2017
--- | --- | --- | ---
Intangible assets, net: |  |  |
Gross carrying amount | $ 53.3 | $ 49.8 | $ 49.4
Accumulated amortization | (49.3) | (46.7) | (45.1)
Net carrying amount | 4.0 | 3.1 | 4.3
Accumulated amortization | (139.7) |  |
Intangible assets, gross | 529.2 | 528.2 | 455.5
Accumulated amortization, net | (49.3) | (46.7) | (45.1)
Total intangible assets, net | 340.2 | 481.5 | 410.4
Definite-lived intangible liabilities: |  |  |
Gross carrying amount | (113.9) | (114.5) | (114.1)
Accumulated amortization | 90.7 | 85.2 | 83.0
Total | (23.2) | (29.3) | (31.1)
Trade names |  |  |
Intangible assets, net: |  |  |
Indefinite-lived intangible assets, gross | 475.9 | 478.4 | 406.1
Accumulated amortization | (139.7) |  |
Indefinite-lived intangible assets | $ 336.2 | $ 478.4 | $ 406.1

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