Revenue Recognition - Additional Information (Detail)
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3 Months Ended |
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May 02, 2020
USD ($)
segment
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May 04, 2019
USD ($)
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Feb. 01, 2020
USD ($)
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Percentage of cash back earned |
2.00%
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| Maximum annual cash back amount |
$ 500
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| Cash back in form of electronic awards issued |
$ 20
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| Cash back in form of electronic awards issued, expiration period |
6 months
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| Club membership term |
12 months
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| Number of reportable segments | segment |
1
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| My BJ's Perks Mastercard |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Percentage of cash back earned |
5.00%
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| Card outside of BJ's |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Percentage of cash back earned |
2.00%
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| BJ's Perks Rewards - earned awards |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Deferred revenue |
$ 28,600,000
|
$ 27,600,000
|
$ 26,700,000
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| BJ's Perks Rewards - royalty revenue |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Deferred revenue |
14,800,000
|
13,300,000
|
14,800,000
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| Membership |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Deferred revenue |
157,600,000
|
141,600,000
|
144,000,000.0
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| Gift card programs |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Deferred revenue |
9,800,000
|
8,000,000.0
|
$ 10,300,000
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| Revenue recognized |
$ 10,200,000
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$ 11,100,000
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| Net sales | Revenue from rights concentration risk |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Concentration risk percentage |
96.00%
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| Total revenues | Revenue from rights concentration risk |
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| Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |
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| Concentration risk percentage |
94.00%
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