XML 34 R22.htm IDEA: XBRL DOCUMENT
v3.21.2

Summary of Significant Accounting Policies (Nature of Business) (Details) | 3 Months Ended |
--- | --- | ---
Oct. 30, 2021 USD ($) state Stores | Oct. 31, 2020 Stores
Accounting Policies [Abstract] |  |
Products offering price, maximum price | $ 5 |
Number of states in which entity operates (state) | state | 40 |
Number of stores (store) | Stores | 1,173 | 1,018
Deferred Compensation Arrangement With individual, Percent Of Gross Pay | 80.00% |
Equity Method Investment, Other than Temporary Impairment | $ 9,700,000 |

X
- Definition Deferred Compensation Arrangement With individual, Percent Of Eligible Compensation + References No definition available. + Details
Name: | five_DeferredCompensationArrangementWithIndividualPercentOfEligibleCompensation
Namespace Prefix: | five_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Products Offering Price + References No definition available. + Details
Name: | five_ProductsOfferingPrice
Namespace Prefix: | five_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=121548190&loc=d3e32787-111569 + Details
Name: | us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of states the entity operates in as of the balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of stores. + References No definition available. + Details
Name: | us-gaap_NumberOfStores
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant