Goodwill and Intangibles - Goodwill (Details) $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($) item segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Oct. 26, 2025 USD ($)	Jan. 02, 2025 USD ($)	Jan. 01, 2024 USD ($)
Gross Balance
Balance at the beginning of the period	$ 891.2	$ 860.1
Balance at the beginning of the period, adjusted	882.1
Acquired During the Period	129.5	31.1
Balance at the end of the period, adjusted	1,011.6	882.1
Balance at the end of the period		891.2	$ 860.1
Accumulated Impairment Losses
Balance at the beginning of the period	(167.1)	(167.1)
Balance at the end of the period	(167.1)	(167.1)	(167.1)
Foreign Currency Translation	14.5	(9.1)
Net Goodwill	$ 859.0	715.0		$ 780.0
Number of reporting units | item	8
Number of reporting units with goodwill | item	7
Goodwill impairment charges	$ 0.0	0.0	0.0
Number of geographic segments | segment	3
Americas
Gross Balance
Balance at the beginning of the period	$ 618.2	587.1
Balance at the beginning of the period, adjusted	617.5
Acquired During the Period	111.6	31.1
Balance at the end of the period, adjusted	729.1	617.5
Balance at the end of the period		618.2	587.1
Accumulated Impairment Losses
Balance at the beginning of the period	(24.5)	(24.5)
Balance at the end of the period	(24.5)	(24.5)	(24.5)
Foreign Currency Translation	0.4	(0.7)
Net Goodwill	705.0	593.0
Europe
Gross Balance
Balance at the beginning of the period	239.8	239.8
Balance at the beginning of the period, adjusted	233.3
Balance at the end of the period, adjusted	233.3	233.3
Balance at the end of the period		239.8	239.8
Accumulated Impairment Losses
Balance at the beginning of the period	(129.7)	(129.7)
Balance at the end of the period	(129.7)	(129.7)	(129.7)
Foreign Currency Translation	13.4	(6.5)
Net Goodwill	117.0	103.6
APMEA
Gross Balance
Balance at the beginning of the period	33.2	33.2
Balance at the beginning of the period, adjusted	31.3
Acquired During the Period	17.9
Balance at the end of the period, adjusted	49.2	31.3
Balance at the end of the period		33.2	33.2
Accumulated Impairment Losses
Balance at the beginning of the period	(12.9)	(12.9)
Balance at the end of the period	(12.9)	(12.9)	$ (12.9)
Foreign Currency Translation	0.7	(1.9)
Net Goodwill	37.0	18.4
Josam Industries, LLC
Accumulated Impairment Losses
Net Goodwill						$ 35.1
Josam Industries, LLC | Americas
Gross Balance
Acquired During the Period		35.1
Bradley | Americas
Gross Balance
Acquired During the Period		$ 4.0
I-CON
Accumulated Impairment Losses
Net Goodwill					$ 41.6
Americas | Acquisition in year 2025
Gross Balance
Acquired During the Period	111.6
APMEA | Saudi Cast
Gross Balance
Acquired During the Period	$ 17.9