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Income Taxes Income Taxes - Reconciliation between Federal Statutory rate and Income Tax Benefit (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 30, 2011
Dec. 31, 2010
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]      
Tax benefit at U.S. Federal statutory rate $ (13,472) $ (20,791) $ (18,497)
Earnings taxed at rates different than the U.S. Federal statutory rate 188 205 (729)
Earnings taxed at rates different than the U.S. Federal statutory rate (6,271) (6,049) (185)
Impact of non-deductible interest 0 0 1,885
Changes in enacted tax rates (63) 135 (101)
Implementation of tax planning strategies 0 0 (8,494)
Change in valuation allowances 16,310 24,689 4,075
Impact of changes in uncertain tax positions 386 938 (2,442)
Foreign dividends 0 2,889 8,040
Other, net 1,199 1,299 1,987
Income Tax Expense (Benefit) $ (1,723) $ 3,315 $ (14,461)