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Derivatives - Narrative (Detail) (Canadian dollar foreign exchange contract [Member]) | 12 Months Ended |
--- | --- | ---
Apr. 28, 2013 | Jan. 21, 2009
Canadian dollar foreign exchange contract [Member] |  |
Derivative [Line Items] |  |
Exchange rate to convert one Canadian dollar into one US dollar |  | 1.218
Contract expiration date | Nov. 01, 2013 |
Termination date | First quarter of fiscal 2011 |

X
- Definition The expiration date of the contract, in CCYY-MM-DD format. + References No definition available. + Details
Name: | cfi_ContractExpirationDate
Namespace Prefix: | cfi_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The date, which may be expressed in a variety of ways, when a contract was terminated. + References No definition available. + Details
Name: | cfi_ContractTerminationDate
Namespace Prefix: | cfi_
Data Type: | us-types:dateStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual rate at which a foreign currency can be purchased or sold. + References No definition available. + Details
Name: | us-gaap_DerivativeForwardExchangeRate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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