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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) / INCOME (UNAUDITED) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2020
Jun. 30, 2019
Jun. 28, 2020
Jun. 30, 2019
Statement of Comprehensive Income [Abstract]        
Other comprehensive (income) loss, defined benefit plan, after reclassification adjustment, tax $ 0.1 $ 0.1 $ 0.2 $ 0.2
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, tax $ 0.0 $ 0.0 $ 0.0 $ 0.0