Revenue - Revenue Contract Estimates (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 27, 2019 |
Sep. 28, 2018 |
Sep. 27, 2019 |
Sep. 28, 2018 |
|
| Revenue from Contract with Customer [Abstract] | ||||
| Net favorable adjustment to operating income | $ 0.7 | $ 1.5 | $ 4.9 | |
| Net unfavorable adjustment to operating income | $ 1.6 | |||
| Favorable adjustments | $ 4.0 | $ 4.2 | $ 4.7 | |
| Unfavorable adjustments | $ 2.0 | |||