XML 79 R55.htm IDEA: XBRL DOCUMENT v3.19.2
Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
Mar. 31, 2010
Jun. 30, 2019
Jul. 01, 2018
Dec. 30, 2018
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       $ 17.7
Increase resulting from current period tax positions   $ 1.9    
Expense for interest and penalties   1.1 $ 0.4  
Liabilities for uncertain tax positions believed to be reasonably possible to expire within twelve months   $ 0.4