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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Schedule of Basic Weighted Average Shares Reconciles to Diluted Weighted Average Shares
Basic weighted average common shares outstanding reconciles to diluted weighted average common shares outstanding as follows:
202420232022
Basic weighted average common shares outstanding75.7 75.6 75.7 
Dilutive effect of restricted stock, performance share units and stock options0.2 0.3 0.3 
Diluted weighted average common shares outstanding75.9 75.9 76.0 
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
Share-based payment awards that were not included in the computation of Diluted EPS attributable to IDEX because the effect of their inclusion would have been antidilutive were as follows:

202420232022
Antidilutive shares not included in Diluted EPS attributable to IDEX0.4 0.2 0.5 
Schedule of Property and Equipment at Cost, Depreciation and Amortization Estimated Useful Lives
Property and equipment are stated at historical cost, net of accumulated depreciation. Depreciation is recorded using the straight-line method over each asset’s estimated useful life. Property and equipment are generally depreciated over the following estimated useful lives:

Land improvements
8 to 12 years
Buildings and improvements
8 to 30 years
Machinery, equipment and other
3 to 12 years
Office and transportation equipment
2 to 10 years
Schedule of Identifiable Intangible Assets, Useful Lives
Certain identifiable intangible assets are amortized over their estimated useful lives using the straight-line method. The estimated useful lives used in the computation of amortization of identifiable intangible assets are as follows:

Patents
5 to 20 years
Trade names
15 to 20 years
Customer relationships
5 to 20 years
Unpatented technology
8 to 20 years
Software5 years