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Taxes (Operating Loss Carryforwards) (Details)
$ in Thousands
Dec. 29, 2018
USD ($)
Operating loss carryforwards  
Total loss carryforwards $ 135,092
Expires 2019 through 2023  
Operating loss carryforwards  
Total loss carryforwards 31,763
Expires 2024 through 2028  
Operating loss carryforwards  
Total loss carryforwards 27,816
Expires 2029 through 2033  
Operating loss carryforwards  
Total loss carryforwards 136
Expires 2034 through 2038  
Operating loss carryforwards  
Total loss carryforwards 58,975
Indefinite  
Operating loss carryforwards  
Total loss carryforwards $ 16,402