Goodwill and Related Intangible Assets (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
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