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Goodwill and Related Intangible Assets (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Finite-lived intangible assets | $ 152,259 | $ 162,472
Total acquired intangible assets, Gross Carrying Amount | 204,959 | 215,172
Accumulated Amortization, Finite-lived intangible assets | 76,234 | 73,668
Total acquired intangible assets, Accumulated Amortization | 76,234 | 73,668
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Finite-lived intangible assets | 5,504 | 5,521
Accumulated Amortization, Finite-lived intangible assets | 4,268 | 4,011
Unpatented technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Finite-lived intangible assets | 34,322 | 38,474
Accumulated Amortization, Finite-lived intangible assets | 20,941 | 20,656
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Finite-lived intangible assets | 103,160 | 108,591
Accumulated Amortization, Finite-lived intangible assets | 42,201 | 39,832
Non-compete agreements |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Finite-lived intangible assets | 2,382 | 2,686
Accumulated Amortization, Finite-lived intangible assets | 1,933 | 1,969
Backlog |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Finite-lived intangible assets | 6,891 | 7,200
Accumulated Amortization, Finite-lived intangible assets | 6,891 | 7,200
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount, Indefinite-lived intangible assets | 52,700 | 52,700
Accumulated Amortization, Indefinite-lived intangible assets | $ 0 | $ 0

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