XML 74 R66.htm IDEA: XBRL DOCUMENT v3.25.1
Earnings Per Share - Computation of Basic and Diluted (Loss) Income Per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Earnings Per Share [Line Items]    
Net income and comprehensive income attributable to Emerald Holding, Inc. $ 15.3 $ 11.0
Accretion to redemption value of redeemable convertible preferred stock 0.0 (10.7)
Participation rights on if-converted basis   (0.2)
Net income and comprehensive income attributable to Emerald Holding, Inc.common stockholders $ 15.3 $ 0.1
Weighted average common shares outstanding 200,596 63,039
Basic income per share $ 0.08 $ 0
Net income and comprehensive income attributable to Emerald Holding, Inc.common stockholders $ 15.3 $ 0.1
Diluted effect of stock options 245 2,166
Diluted weighted average common shares outstanding 200,841 65,205
Diluted income per share $ 0.08 $ 0
Anti-dilutive employee share awards excluded from diluted earnings per share calculation 17,985 8,667
Redeemable Convertible Preferred Stock [Member]    
Earnings Per Share [Line Items]    
Accretion to redemption value of redeemable convertible preferred stock   $ (10.7)