Acquisitions - Pro Forma Financial Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Business Combination [Line Items]
Basic earnings per share (in dollars per share)	$ 7.17
Diluted earnings per share (in dollars per share)	$ 7.15
M&C
Business Combination [Line Items]
Net sales	$ 1,893,300,000	$ 1,860,800,000
Net income	$ 281,400,000	$ 291,900,000
Basic earnings per share (in dollars per share)		$ 7.41
Diluted earnings per share (in dollars per share)		$ 7.38