Income Taxes (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Changes in unrecognized tax benefits
Unrecognized tax benefits, balance at the beginning of the period	$ 10,789,000	$ 12,160,000	$ 32,695,000
Additions based on tax positions related to current year	757,000	1,742,000
Additions based on tax positions related to prior years			4,127,000
Reductions for tax positions related to prior years	(603,000)	(3,113,000)	(14,954,000)
Reductions for tax positions as a result of a lapse of the applicable statute of limitations			(1,197,000)
Reductions for settlements with taxing authorities			(8,511,000)
Unrecognized tax benefits, balance at the end of the period	10,973,000	10,789,000	12,160,000
Gross unrecognized tax benefits which would affect the effective tax rate if recognized	10,900,000	10,800,000	12,200,000
Income Tax Penalties and Interest Expense
Interest recognized, net of tax			800,000
Decreases of interest, net of tax		100,000	1,800,000
Reasonably possible change in unrecognized tax position end in next twelve months
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 3,500,000