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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