Financial Information For The Company And Its Subsidiaries (Narrative) (Details)	3 Months Ended
May 02, 2015
Financial Information For The Company And Its Subsidiaries [Abstract]
Guarantors, ownership percentage by parent	100.00%

The percentage ownership of guarantors by the Parent.

No definition available.

Name:	cal_PercentageOwnershipOfGuarantorsByParent
Namespace Prefix:	cal_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration