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Accounts Receivable, Net - Portfolio of Accounts Receivable (Details) - USD ($) $ in Millions | Feb. 03, 2018 | Jan. 28, 2017 | Jan. 30, 2016
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable, net | $ 692.5 | $ 1,858.0 |
Consumer Portfolio Segment |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable, net | 649.4 | 1,813.3 | $ 1,725.9
Other accounts receivable |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable, net | 9.6 | 11.3 |
Sterling Jewelers | Consumer Portfolio Segment |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable, net | 649.4 | 1,813.3 |
Zale Jewelry | Consumer Portfolio Segment |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accounts receivable, net | $ 33.5 | $ 33.4 |

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