Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Non-Controlling Interest [Member]
Beginning Balance at Dec. 31, 2022	$ 1,040.4	$ 0.3	$ 354.1	$ (95.4)	$ 924.2	$ (145.2)	$ 2.4
Net income	139.1				139.1
Dividend paid	(35.1)				(35.1)
Changes in cumulative translation adjustment, net of tax	15.9					15.9
Share of net income	0.1						0.1
Treasury stock re-issued	1.1		(1.1)	2.2
Treasury stock repurchased	(1.1)			(1.1)
Stock option compensation	8.0		8.0
Amortization of prior service cost, net of tax	0.4					0.4
Amortization of actuarial net gains, net of tax	(1.7)					(1.7)
Actuarial net losses arising during the year, net of tax	(17.5)					(17.5)
Ending Balance at Dec. 31, 2023	1,149.6	0.3	361.0	(94.3)	1,028.2	(148.1)	2.5
Net income	35.6				35.6
Dividend paid	(38.8)				(38.8)
Changes in cumulative translation adjustment, net of tax	(20.1)					(20.1)
Share of net income	2.4						2.4
Treasury stock re-issued	2.4		0.4	2.0
Treasury stock repurchased	(0.7)			(0.7)
Stock option compensation	8.5		8.5
Amortization of prior service cost, net of tax	6.3					6.3
Amortization of actuarial net gains, net of tax	(0.2)					(0.2)
Actuarial net losses arising during the year, net of tax	(21.3)					(21.3)
Pension scheme settlement	92.4					92.4
Ending Balance at Dec. 31, 2024	1,216.1	0.3	369.9	(93.0)	1,025.0	(91.0)	4.9
Net income	116.6				116.6
Dividend paid	(42.4)				(42.4)
Changes in cumulative translation adjustment, net of tax	55.4					55.4
Share of net income							1.9
Treasury stock re-issued	0.2		(1.5)	1.7
Treasury stock repurchased	(23.9)			(23.9)
Stock option compensation	8.1		8.1
Actuarial net losses arising during the year, net of tax	0.9					0.9
Ending Balance at Dec. 31, 2025	$ 1,332.9	$ 0.3	$ 376.5	$ (115.2)	$ 1,099.2	$ (34.7)	$ 6.8