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v3.22.2.2

Revenues (Details) $ in Millions | 9 Months Ended
--- | ---
Oct. 29, 2022 USD ($) item | Oct. 30, 2021 USD ($)
Revenues |  |
Gift Card Breakage Term | 24 months |
Loyalty Program |  |
Revenues |  |
Number of performance obligations | item | 2 |
Contract with customer, liability, increase due to points and material rights earned on purchases | $ 32.5 | $ 27.4
Contract with customer, liability, decrease due to expirations and redemptions | $ 33.6 | $ 23.0

X
- Definition Amount of decrease in obligation to transfer goods or services to customers for which consideration from the customer has been received or is due, from expirations and redemptions. + References No definition available. + Details
Name: | cal_ContractWithCustomerLiabilityDecreaseDueToExpirationsAndRedemptions
Namespace Prefix: | cal_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in obligation to transfer goods or services to customers for which consideration from the customer has been received or is due, from points and material rights earned on purchases. + References No definition available. + Details
Name: | cal_ContractWithCustomerLiabilityIncreaseDueToPointsAndMaterialRightsAccruedForPurchases
Namespace Prefix: | cal_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Term of gift card breakage. + References No definition available. + Details
Name: | cal_GiftCardBreakageTerm
Namespace Prefix: | cal_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of performance obligations. + References No definition available. + Details
Name: | cal_NumberOfPerformanceObligations
Namespace Prefix: | cal_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | srt_ProductOrServiceAxis=cal_LoyaltyProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |