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Revenues (Information Regarding Major Product Lines) (Details)	3 Months Ended
	May 04, 2024	Apr. 29, 2023
Product Information [Line Items]
Percentage of net sales	100.00%	100.00%
Denims [Member]
Product Information [Line Items]
Percentage of net sales	43.20%	41.70%
Tops (including sweaters) [Member]
Product Information [Line Items]
Percentage of net sales	27.30%	27.10%
Accessories [Member]
Product Information [Line Items]
Percentage of net sales	10.80%	10.80%
Sportswear / Fashions [Member]
Product Information [Line Items]
Percentage of net sales	8.10%	7.80%
Footwear [Member]
Product Information [Line Items]
Percentage of net sales	5.80%	8.10%
Casual Bottoms [Member]
Product Information [Line Items]
Percentage of net sales	1.50%	1.20%
Outerwear [Member]
Product Information [Line Items]
Percentage of net sales	0.70%	0.90%
Youth [Member]
Product Information [Line Items]
Percentage of net sales	2.60%	2.40%

X

- Definition

Aggregate percentage of revenue during the period from sale of goods and services in the normal course of business, after deducting returns, allowances and discounts.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Details

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Namespace Prefix:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=bke_AccessoriesMember
Namespace Prefix:
Data Type:	na
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Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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X

- Details

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Namespace Prefix:
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Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: