Goodwill and Other Intangibles - Goodwill by Business Segment (Details) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Goodwill [Roll Forward] | |||
| Balance, December 31, 2019 | $ 605.8 | $ 634.0 | $ 596.1 |
| Foreign currency translation | (5.8) | (28.2) | (11.1) |
| Balance, June 30, 2020 | 600.0 | 605.8 | 634.0 |
| Americas | |||
| Goodwill [Roll Forward] | |||
| Balance, December 31, 2019 | 371.5 | 396.5 | 356.4 |
| Foreign currency translation | (1.4) | (25.0) | 1.9 |
| Balance, June 30, 2020 | 370.1 | 371.5 | 396.5 |
| Asia Pacific | |||
| Goodwill [Roll Forward] | |||
| Balance, December 31, 2019 | 50.3 | 50.9 | 53.1 |
| Foreign currency translation | (1.4) | (0.6) | (2.5) |
| Balance, June 30, 2020 | 48.9 | 50.3 | $ 50.9 |
| Europe, Middle East, & Africa | |||
| Goodwill [Roll Forward] | |||
| Balance, December 31, 2019 | 184.0 | ||
| Foreign currency translation | (3.0) | ||
| Balance, June 30, 2020 | $ 181.0 | $ 184.0 | |