v3.26.1
Financial Instruments and Contingent Consideration (Schedule of Changes in Fair Value of the Acquisition Related Contingent Consideration Liability) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Business Combination [Line Items]        
Fair value of contingent consideration as of beginning of period $ 2.3 $ 2.0 $ 3.4 $ 3.2
Cash consideration paid 0.0 0.0 1.5 1.5
Loss related to change in fair value of contingent consideration, net $ 0.9 $ 0.1 $ 0.9 $ 0.4
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease) Business Combination, Contingent Consideration, Change in Contingent Consideration, Liability, Increase (Decrease)
Fair value of contingent consideration as of end of period $ 3.2 $ 2.1 $ 3.2 $ 2.1
Eventscape [Member]        
Business Combination [Line Items]        
Acquisition date fair value of Eventscape contingent consideration $ 0.0 $ 0.0 $ 0.4 $ 0.0