Represents the monetary amount of Borrowings, during the indicated time period.

No definition available.

Name:	urbn_Borrowings
Namespace Prefix:	urbn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit facility increase additional borrowing.

+ References

No definition available.

+ Details

Name:	urbn_LineOfCreditFacilityIncreaseAdditionalBorrowing
Namespace Prefix:	urbn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility maturity date month and year.

+ References

No definition available.

+ Details

Name:	urbn_LineOfCreditFacilityMaturityDateMonthAndYear
Namespace Prefix:	urbn_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of financial institutions.

+ References

No definition available.

+ Details

Name:	urbn_NumberOfFinancialInstitutions
Namespace Prefix:	urbn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Name:	us-gaap_InterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility first became available, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInitiationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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+ Details

Name:	us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherNonoperatingIncomeExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=urbn_TradeLetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=urbn_JpmorganChaseBankNAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=urbn_VariableInterestRateOptionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=urbn_AdjustedBounceRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - Additional Information (Detail)		3 Months Ended			9 Months Ended
Debt - Additional Information (Detail)	Jun. 29, 2018 USD ($) Financial_Institution	Oct. 31, 2020 USD ($)	Jul. 31, 2020 USD ($)	Apr. 30, 2020 USD ($)	Oct. 31, 2020 USD ($)
Line of Credit Facility [Line Items]
Line of credit outstanding		$ 0			$ 0
Borrowings during period				$ 220,000,000
Repaid of borrowing		120,000,000	$ 100,000,000
Other (Loss) Income, Net
Line of Credit Facility [Line Items]
Interest expense					2,455,000
Stand-by letters of credit
Line of Credit Facility [Line Items]
Letter of credit outstanding		13,284,000			13,284,000
Trade Letter of Credit
Line of Credit Facility [Line Items]
Letter of credit outstanding		$ 43,593,000			$ 43,593,000
Number of financial institutions with borrowing agreements \| Financial_Institution	2
JPMorgan Chase Bank N. A. \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit agreement initiation date	Jun. 29, 2018
Credit facility maturity date	2023-06
Credit facility maximum borrowing capacity	$ 350,000,000
Additional line of credit facility	$ 150,000,000
Commitment fee percentage	0.20%
JPMorgan Chase Bank N. A. \| Revolving Credit Facility \| Adjusted LIBOR, CDOR or EURIBOR \| Minimum
Line of Credit Facility [Line Items]
Applicable margin	1.125%
JPMorgan Chase Bank N. A. \| Revolving Credit Facility \| Adjusted LIBOR, CDOR or EURIBOR \| Maximum
Line of Credit Facility [Line Items]
Applicable margin	1.375%
JPMorgan Chase Bank N. A. \| Revolving Credit Facility \| Adjusted ABR \| Minimum
Line of Credit Facility [Line Items]
Applicable margin	0.125%
JPMorgan Chase Bank N. A. \| Revolving Credit Facility \| Adjusted ABR \| Maximum
Line of Credit Facility [Line Items]
Applicable margin	0.375%