PENSION PLANS - Fair values of defined benefit plan assets (Details) - Non-U.S. Plans - USD ($)
$ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Debt securities |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 4.1
|
$ 4.1
|
| Plan assets, percentage |
28.00%
|
30.00%
|
| Debt securities | Level 2 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 4.1
|
$ 4.1
|
| Insurance arrangements |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 7.8
|
$ 6.8
|
| Plan assets, percentage |
53.00%
|
50.00%
|
| Insurance arrangements | Level 3 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 7.8
|
$ 6.8
|
| Other |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 2.9
|
$ 2.8
|
| Plan assets, percentage |
19.00%
|
20.00%
|
| Other | Level 1 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 0.5
|
|
| Other | Level 2 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
|
$ 0.6
|
| Other | Level 3 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
2.4
|
2.2
|
| Total Percentage |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 14.8
|
$ 13.7
|
| Plan assets, percentage |
100.00%
|
100.00%
|
| Total Percentage | Level 1 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 0.5
|
|
| Total Percentage | Level 2 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
4.1
|
$ 4.7
|
| Total Percentage | Level 3 |
|
|
| Plan assets allocation |
|
|
| Plan assets |
$ 10.2
|
$ 9.0
|