Goodwill and Related Intangible Assets (Schedule of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	$ 153,516	$ 162,472
Total acquired intangible assets, Gross Carrying Amount	206,216	215,172
Accumulated Amortization, Finite-lived intangible assets	74,109	73,668
Total acquired intangible assets, Accumulated Amortization	74,109	73,668
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	5,540	5,521
Accumulated Amortization, Finite-lived intangible assets	4,161	4,011
Unpatented technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	34,425	38,474
Accumulated Amortization, Finite-lived intangible assets	20,365	20,656
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	104,252	108,591
Accumulated Amortization, Finite-lived intangible assets	40,777	39,832
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	2,389	2,686
Accumulated Amortization, Finite-lived intangible assets	1,896	1,969
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-lived intangible assets	6,910	7,200
Accumulated Amortization, Finite-lived intangible assets	6,910	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