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Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
Mar. 31, 2010
Jul. 01, 2018
Jun. 25, 2017
Dec. 31, 2017
Income Tax Disclosure [Abstract]        
Federal annual utilization of NOL carryforwards limit, next five years $ 27.0      
Threshold period for change in allowed annual amount of NOL to be recognized 5 years      
Federal annual utilization of NOL carryforwards limit, after year five $ 11.6      
Unrecognized tax benefits that if recognized would impact the effective tax rate for continuing operations       $ 14.0
Unrecognized tax benefits increase current year positions   $ 1.0    
Discontinued operation, unrecognized tax benefits       $ 1.6
Unrecognized tax benefits, decrease from discontinued operations   1.6    
Expense for interest and penalties   0.4 $ 0.2  
Decrease in interest and penalties   0.8    
Liabilities for uncertain tax positions that could expire within twelve months   $ 0.4