Income Taxes - Narrative (Details) |
12 Months Ended | |||
|---|---|---|---|---|
Jan. 01, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||||
| Effect of change in effective tax rate due to use of IID | 3.75% | 4.40% | ||
| Belgium | ||||
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||||
| Applicable tax rate | 29.58% | 29.58% | 34.00% | |