The Company and Summary of Significant Accounting Policies (Details) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended	1 Months Ended
Apr. 01, 2012	Jan. 01, 2012	Jan. 31, 2012 Private Placement [Member] Total [Member]
Accounting Policies [Line Items]
Sale of Stock, Number of Shares Issued in Transaction			18.6
Sale of Stock, Percentage of Ownership after Transaction			66.00%
Number of Weeks in Fiscal Year	P52W	P52W

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

Name:	us-gaap_SaleOfStockPercentageOfOwnershipAfterTransaction
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration