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Fair Value of Assets and Liabilities (Details) (USD $)
Dec. 31, 2012
Aug. 31, 2012
Jan. 01, 2012
Jan. 02, 2011
Aug. 31, 2010
Jan. 03, 2010
Dec. 31, 2012
Carrying Value [Member]
Jan. 01, 2012
Carrying Value [Member]
Dec. 31, 2012
Carrying Value [Member]
Senior Note Due 2017 [Member]
Jan. 01, 2012
Carrying Value [Member]
Senior Note Due 2017 [Member]
Dec. 31, 2012
Carrying Value [Member]
6.625% Senior Notes [Member]
Jan. 01, 2012
Carrying Value [Member]
6.625% Senior Notes [Member]
Dec. 31, 2012
Carrying Value [Member]
Other [Member]
Jan. 01, 2012
Carrying Value [Member]
Other [Member]
Dec. 31, 2012
Total Fair Value [Member]
Jan. 01, 2012
Total Fair Value [Member]
Dec. 31, 2012
Total Fair Value [Member]
Senior Note Due 2017 [Member]
Jan. 01, 2012
Total Fair Value [Member]
Senior Note Due 2017 [Member]
Dec. 31, 2012
Total Fair Value [Member]
6.625% Senior Notes [Member]
Jan. 01, 2012
Total Fair Value [Member]
6.625% Senior Notes [Member]
Dec. 31, 2012
Total Fair Value [Member]
Other [Member]
Jan. 01, 2012
Total Fair Value [Member]
Other [Member]
Dec. 31, 2012
Level 1 [Member]
Jan. 01, 2012
Level 1 [Member]
Dec. 31, 2012
Level 1 [Member]
Senior Note Due 2017 [Member]
Jan. 01, 2012
Level 1 [Member]
Senior Note Due 2017 [Member]
Dec. 31, 2012
Level 1 [Member]
6.625% Senior Notes [Member]
Jan. 01, 2012
Level 1 [Member]
6.625% Senior Notes [Member]
Dec. 31, 2012
Level 1 [Member]
Other [Member]
Jan. 01, 2012
Level 1 [Member]
Other [Member]
Dec. 31, 2012
Level 2 [Member]
Jan. 01, 2012
Level 2 [Member]
Dec. 31, 2012
Level 2 [Member]
Senior Note Due 2017 [Member]
Jan. 01, 2012
Level 2 [Member]
Senior Note Due 2017 [Member]
Dec. 31, 2012
Level 2 [Member]
6.625% Senior Notes [Member]
Jan. 01, 2012
Level 2 [Member]
6.625% Senior Notes [Member]
Dec. 31, 2012
Level 2 [Member]
Other [Member]
Jan. 01, 2012
Level 2 [Member]
Other [Member]
Dec. 31, 2012
Level 3 [Member]
Jan. 01, 2012
Level 3 [Member]
Dec. 31, 2012
Level 3 [Member]
Senior Note Due 2017 [Member]
Jan. 01, 2012
Level 3 [Member]
Senior Note Due 2017 [Member]
Dec. 31, 2012
Level 3 [Member]
6.625% Senior Notes [Member]
Jan. 01, 2012
Level 3 [Member]
6.625% Senior Notes [Member]
Dec. 31, 2012
Level 3 [Member]
Other [Member]
Jan. 01, 2012
Level 3 [Member]
Other [Member]
Dec. 31, 2012
Australian Subsidiary [Member]
Carrying Value [Member]
Jan. 01, 2012
Australian Subsidiary [Member]
Carrying Value [Member]
Dec. 31, 2012
Australian Subsidiary [Member]
Total Fair Value [Member]
Jan. 01, 2012
Australian Subsidiary [Member]
Total Fair Value [Member]
Dec. 31, 2012
Australian Subsidiary [Member]
Level 1 [Member]
Jan. 01, 2012
Australian Subsidiary [Member]
Level 1 [Member]
Dec. 31, 2012
Australian Subsidiary [Member]
Level 2 [Member]
Jan. 01, 2012
Australian Subsidiary [Member]
Level 2 [Member]
Dec. 31, 2012
Australian Subsidiary [Member]
Level 3 [Member]
Jan. 01, 2012
Australian Subsidiary [Member]
Level 3 [Member]
Dec. 31, 2012
Senior Notes Due 2012 [Member]
Aug. 12, 2010
Senior Notes Due 2012 [Member]
Assets:                                                                                                                    
Cash and cash equivalents $ 31,755,000   $ 43,378,000 $ 38,088,000   $ 28,592,000 $ 31,755,000 $ 43,377,000             $ 31,755,000 $ 43,377,000             $ 31,755,000 $ 43,377,000             $ 0 $ 0             $ 0 $ 0                                    
Restricted cash             34,949,000 51,881,000             34,949,000 51,881,000             34,949,000 51,881,000             0 0             0 0                                    
Liabilities:                                                                                                                    
Borrowings under the Senior Credit Facility             797,430,000 782,962,000             803,097,000 785,917,000             0 0             803,097,000 785,917,000             0 0                                    
Senior Notes 49,500,000   250,000,000           247,543,000 247,141,000 300,000,000 300,000,000         270,313,000 262,033,000 335,814,000 300,375,000         0 0 0 0         270,313,000 262,033,000 335,814,000 300,375,000         0 0 0 0                            
Non-recourse debt 123,482,000 77,900,000 241,798,000                                                                                       34,832,000 40,345,000 34,973,000 41,347,000 0 0 34,973,000 41,347,000 0 0    
Other non-recourse debt, including current portion                         $ 88,650,000 $ 201,453,000             $ 91,345,000 $ 206,712,000             $ 0 $ 0             $ 91,345,000 $ 206,712,000             $ 0 $ 0                        
Notes bear interest at a rate         8.47%                                                                                                       6.625% 10.75%