Employee Benefit Plans (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011	Dec. 31, 2011
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Bonus compensation	$ 1,400,000	$ 800,000	$ 4,000,000	$ 2,600,000
Non-qualified deferred compensation plan liabilities	1,942,000		1,942,000		1,120,000
Defined Contribution Pension
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
401(k) Plan, maximum annual employer contribution percent per employee			3.00%
401(k) Plan, employer contribution	100,000	200,000	500,000	500,000
Deferred Compensation, Excluding Share-based Payments and Retirement Benefits
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Non-qualified deferred compensation plan assets	1,600,000		1,600,000
Non-qualified deferred compensation plan liabilities	$ 1,900,000		$ 1,900,000
Minimum | Defined Contribution Pension
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
401(k) Plan, employee minimum contribution percent qualifying for company match			2.00%