Condensed Consolidated Statements of Income (unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Income Statement [Abstract]
Net sales	$ 1,711,800,000	$ 1,484,300,000	$ 3,228,500,000	$ 2,849,500,000
Cost of goods sold	1,098,800,000	932,200,000	2,110,200,000	1,854,800,000
Gross profit	613,000,000.0	552,100,000	1,118,300,000	994,700,000
Selling & administrative expenses	264,400,000	215,800,000	505,900,000	428,000,000.0
Operating income	348,600,000	336,300,000	612,400,000	566,700,000
Interest expense, net	(39,100,000)	(14,500,000)	(61,100,000)	(28,300,000)
Loss on disposition of business	0	(400,000)	0	(400,000)
Other expense, net	(5,800,000)	(6,200,000)	(11,200,000)	(11,500,000)
Total other expense, net	(44,900,000)	(21,100,000)	(72,300,000)	(40,200,000)
Income before income taxes	303,700,000	315,200,000	540,100,000	526,500,000
Provision for income taxes	61,500,000	69,700,000	114,900,000	116,500,000
Net income	242,200,000	245,500,000	425,200,000	410,000,000.0
Less: Net income attributable to noncontrolling interest	(1,800,000)	(1,300,000)	(3,000,000.0)	(2,600,000)
Net income attributable to Hubbell Incorporated	$ 240,400,000	$ 244,200,000	$ 422,200,000	$ 407,400,000
Earnings per share:
Basic earnings per share (USD per share)	$ 4.54	$ 4.58	$ 7.96	$ 7.62
Diluted earnings per share (USD per share)	$ 4.52	$ 4.56	$ 7.93	$ 7.58