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Commitments and Contingencies - Additional Information (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Feb. 02, 2011 | Feb. 02, 2019 USD ($) | Feb. 03, 2018 USD ($) | Jan. 28, 2017 USD ($) | Dec. 31, 2006 USD ($) Period
Commitments and Contingencies [Line Items] |  |  |  |  |
Extension of lease term |  |  |  |  | 5 years
Occupancy costs, automobile and leased equipment expense |  | $ 64.9 | $ 66.0 | $ 63.9 |
Lease agreement term |  | 20 years |  |  | 20 years
Sale leaseback transaction rent expense |  |  |  |  | $ 4.6
Sale leaseback transaction deferred gain |  |  |  |  | $ 29.3
Leased asset amortization period |  | 20 years |  |  |
Operating leases renewal option, number of successive lease periods | Period |  |  |  |  | 6
Percentage of increase in annual rent on base rate | 7.00% |  |  |  |
Current annual rent included in future minimum rentals obligations for fiscal 2019 |  | $ 5.2 |  |  |
Current annual rent included in future minimum rentals obligations for fiscal 2020 |  | 5.2 |  |  |
Current annual rent included in future minimum rentals obligations, thereafter |  | 5.6 |  |  |
Merchandise purchase obligation, fiscal 2019 |  | 10.0 |  |  |
Merchandise purchase obligation, fiscal 2020 |  | 10.0 |  |  |
Merchandise purchase obligation, fiscal 2021 |  | 10.0 |  |  |
Merchandise purchase obligation, fiscal 2022 |  | 10.0 |  |  |
Merchandise purchase obligation, fiscal 2023 |  | 10.0 |  |  |
ASU 2016-02 | Retained Earnings |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |
Sale leaseback transaction deferred gain |  | $ 10.3 |  |  |
Minimum |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |
Store lease term |  | 5 years |  |  |
Extension of lease term |  | 5 years |  |  |
Maximum |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |
Store lease term |  | 10 years |  |  |
Extension of lease term |  | 10 years |  |  |

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