Basis of Presentation and Significant Accounting Policies (Details)	6 Months Ended
	Jun. 28, 2011
Basis of Presentation and Significant Accounting Policies
Determination of impairment testing based on cash flow negativeness for specified number of quarters	4
Number of continuous statements presented by the entity to reflect the net income, total net income, components of other comprehensive income and total of other comprehensive income	1
Number of statements presented by the entity to reflect the net income, total net income, components of other comprehensive income and total of other comprehensive income	2