CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 845.4	$ 751.1
Cost of sales	462.9	408.6
Gross profit	382.5	342.5
Selling, general and administrative expenses	189.7	154.3
Restructuring expenses and asset impairments	0.5	0.6
Operating income	192.3	187.6
Other (income) expense - net	(0.6)	(2.3)
Interest expense	13.1	9.5
Income before income taxes	179.8	180.4
Provision for income taxes	40.0	40.5
Net income	139.8	139.9
Net loss attributable to noncontrolling interest	0.0	0.1
Net income attributable to IDEX	$ 139.8	$ 140.0
Earnings per common share:
Basic earnings per common share attributable to IDEX (in dollars per share)	$ 1.85	$ 1.84
Diluted earnings per common share attributable to IDEX (in dollars per share)	$ 1.84	$ 1.83
Share data:
Basic weighted average common shares outstanding (in shares)	75.6	76.1
Diluted weighted average common shares outstanding (in shares)	75.9	76.4