CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 800.5	$ 845.4
Cost of sales	443.1	462.9
Gross profit	357.4	382.5
Selling, general and administrative expenses	195.1	189.7
Restructuring expenses and asset impairments	1.1	0.5
Operating income	161.2	192.3
Other (income) expense - net	(2.7)	(0.6)
Interest expense - net	9.4	13.1
Income before income taxes	154.5	179.8
Provision for income taxes	33.2	40.0
Net income	121.3	139.8
Net loss attributable to noncontrolling interest	0.1	0.0
Net income attributable to IDEX	$ 121.4	$ 139.8
Earnings per common share:
Basic earnings per common share attributable to IDEX (in dollars per share)	$ 1.60	$ 1.85
Diluted earnings per common share attributable to IDEX (in dollars per share)	$ 1.60	$ 1.84
Share data:
Basic weighted average common shares outstanding (in shares)	75.7	75.6
Diluted weighted average common shares outstanding (in shares)	75.9	75.9