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Goodwill And Intangible Assets (Schedule Of Intangible Assets, Net Of Amortization) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 100,192 $ 100,889
Accumulated amortization (48,710) (45,634)
Intangible assets, net $ 51,482 $ 55,255
Weighted average useful life 13 years 13 years
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 76,852 $ 77,370
Accumulated amortization (36,924) (34,653)
Intangible assets, net $ 39,928 $ 42,717
Weighted average useful life 13 years 9 months 18 days 13 years 9 months 18 days
Product Technologies [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 21,130 $ 21,309
Accumulated amortization (9,974) (9,207)
Intangible assets, net $ 11,156 $ 12,102
Weighted average useful life 10 years 2 months 12 days 10 years 2 months 12 days
Trademarks And Tradenames [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 1,263 $ 1,263
Accumulated amortization (865) (827)
Intangible assets, net $ 398 $ 436
Weighted average useful life 9 years 4 months 24 days 9 years 4 months 24 days
Core Technologies [Member]    
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, gross $ 947 $ 947
Accumulated amortization $ (947) $ (947)
Weighted average useful life 10 years 10 years