Acquisitions - Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions						3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Apr. 30, 2025	Feb. 03, 2025	Dec. 18, 2024	May 01, 2024	Jun. 30, 2025	Jun. 30, 2025	Apr. 30, 2025	Dec. 31, 2024
Preliminary Allocation
Goodwill	$ 1,535.5					$ 1,535.5	$ 1,535.5		$ 1,478.0
Bonded Logic
Acquisitions
Total cash consideration transferred	60.7
Preliminary Allocation
Receivables, net	3.2					3.2	3.2
Inventories	5.0					5.0	5.0
Other current assets	0.1					0.1	0.1
Property, plant and equipment	13.5					13.5	13.5
Other intangible assets	9.0					9.0	9.0
Other long-term assets	10.2					10.2	10.2
Accounts payable	(3.3)					(3.3)	(3.3)
Other current liabilities	(5.2)					(5.2)	(5.2)
Other long-term liabilities	(7.7)					(7.7)	(7.7)
Total identifiable net assets	24.8					24.8	24.8
Goodwill	35.9					35.9	35.9
Therma Foam
Acquisitions
Total cash consideration transferred	52.9		$ 52.9
Preliminary Allocation
Receivables, net	2.9		2.7			2.9	2.9
Inventories	1.4		1.4			1.4	1.4
Other current assets	0.1		0.1			0.1	0.1
Property, plant and equipment	8.8		8.8			8.8	8.8
Other intangible assets	6.7		6.7			6.7	6.7
Accounts payable	(0.8)		(0.9)			(0.8)	(0.8)
Other current liabilities	(0.3)		(0.6)			(0.3)	(0.3)
Total identifiable net assets	18.8		18.2			18.8	18.8
Goodwill	34.1		34.7			34.1	34.1
Therma Foam | Measurement Period Adjustments
Acquisitions
Total cash consideration transferred			0.0
Measurement Period Adjustments
Receivables, net			0.2
Inventories			0.0
Other current assets			0.0
Property, plant and equipment			0.0
Other intangible assets			0.0
Accounts payable			0.1
Other current liabilities			0.3
Total identifiable net assets			0.6
Goodwill			$ (0.6)
PFB Holdco, Inc
Acquisitions
Total cash consideration transferred	266.5			$ 268.9		266.5
Preliminary Allocation
Cash and cash equivalents	6.4			6.4		6.4	6.4
Receivables, net	9.6			9.6		9.6	9.6
Inventories	14.5			14.5		14.5	14.5
Other current assets	5.9			6.6		5.9	5.9
Property, plant and equipment	31.7			31.7		31.7	31.7
Other intangible assets	124.3			112.8		124.3	124.3
Other long-term assets	46.2			46.1		46.2	46.2
Accounts payable	(3.9)			(4.6)		(3.9)	(3.9)
Other current liabilities	(14.0)			(27.8)		(14.0)	(14.0)
Deferred taxes	(30.1)			(27.9)		(30.1)	(30.1)
Other long-term liabilities	(43.6)			(43.5)		(43.6)	(43.6)
Total identifiable net assets	147.0			123.9		147.0	147.0
Goodwill	$ 119.5			$ 145.0		$ 119.5	119.5
PFB Holdco, Inc | Measurement Period Adjustments
Acquisitions
Total cash consideration transferred							(2.4)
Measurement Period Adjustments
Cash and cash equivalents							0.0
Receivables, net							0.0
Inventories							0.0
Other current assets							(0.7)
Property, plant and equipment							0.0
Other intangible assets							11.5
Other long-term assets							0.1
Accounts payable							0.7
Other current liabilities							13.8
Deferred taxes							(2.2)
Other long-term liabilities							(0.1)
Total identifiable net assets							23.1
Goodwill							$ (25.5)
MTL Holdings LLC
Acquisitions
Total cash consideration transferred		$ 424.6			$ 423.1
Preliminary Allocation
Cash and cash equivalents		10.3			10.3			$ 10.3
Receivables, net		14.0			14.0			14.0
Inventories		16.8			17.2			16.8
Other current assets		0.9			0.9			0.9
Property, plant and equipment		10.4			10.7			10.4
Other intangible assets		248.3			248.3			248.3
Other long-term assets		8.4			8.1			8.4
Accounts payable		(5.9)			(5.9)			(5.9)
Other current liabilities		(6.1)			(6.1)			(6.1)
Deferred taxes		(6.5)			(6.9)			(6.5)
Other long-term liabilities		(7.6)			(6.7)			(7.6)
Total identifiable net assets		283.0			283.9			283.0
Goodwill		$ 141.6			$ 139.2			141.6
MTL Holdings LLC | Measurement Period Adjustments
Acquisitions
Total cash consideration transferred								1.5
Measurement Period Adjustments
Cash and cash equivalents								0.0
Receivables, net								0.0
Inventories								(0.4)
Other current assets								0.0
Property, plant and equipment								(0.3)
Other intangible assets								0.0
Other long-term assets								0.3
Accounts payable								0.0
Other current liabilities								0.0
Deferred taxes								0.4
Other long-term liabilities								(0.9)
Total identifiable net assets								(0.9)
Goodwill								$ 2.4