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Goodwill and Intangible Assets (Intangible Assets Subject to Amortization) (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]    
Historical Cost $ 1,650,042 $ 1,420,232
Accumulated Amortization 1,179,268 1,094,826
Net 470,774 325,406
Trade names and trademarks    
Finite-Lived Intangible Assets [Line Items]    
Historical Cost 375,332 347,895
Accumulated Amortization 214,695 192,111
Net 160,637 155,784
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Historical Cost 847,121 692,634
Accumulated Amortization 603,979 555,384
Net 243,142 137,250
Other purchased intangibles    
Finite-Lived Intangible Assets [Line Items]    
Historical Cost 427,589 379,703
Accumulated Amortization 360,594 347,331
Net $ 66,995 $ 32,372