Supplemental Cash Flow Information (Details) (Hardee's [Member], USD $) In Thousands, unless otherwise specified	6 Months Ended
Aug. 13, 2012 Restaurant	Aug. 15, 2011 Restaurant
Hardee's [Member]
Business Acquisition [Line Items]
Number of restaurants acquired	1	3
Non-cash aggregate purchase price		$ 1,500

The acquisition-date fair value of the total noncash consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer and the liabilities incurred by the acquirer to former owners of the acquiree.

No definition available.

Name:	ckr_NoncashConsiderationTransferred
Namespace Prefix:	ckr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant