Goodwill and Intangible Assets (Intangible Assets Subject to Amortization) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Historical Cost	$ 182,827	$ 135,112
Accumulated Amortization	160,878	122,634
Net	$ 21,949	$ 12,478
Minimum
Finite-Lived Intangible Assets [Line Items]
Weighted-Average   Amortization Period	1 year
Maximum
Finite-Lived Intangible Assets [Line Items]
Weighted-Average   Amortization Period	20 years
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted-Average   Amortization Period	1 year 9 months 18 days	1 year 7 months 6 days
Historical Cost	$ 7,880	$ 12,219
Accumulated Amortization	6,321	10,633
Net	$ 1,559	$ 1,586
Patent and patent licenses
Finite-Lived Intangible Assets [Line Items]
Weighted-Average   Amortization Period	0 years	0 years
Historical Cost	$ 54,340	$ 10,162
Accumulated Amortization	54,340	9,751
Net	$ 0	$ 411
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average   Amortization Period	4 years 1 month 6 days	4 years 3 months 18 days
Historical Cost	$ 107,845	$ 99,571
Accumulated Amortization	91,291	90,050
Net	$ 16,554	$ 9,521
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Substantial amortization period, majority of amortization expense	4 years	4 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Substantial amortization period, majority of amortization expense	5 years	5 years
Other purchased intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted-Average   Amortization Period	3 years 9 months 18 days	3 years 9 months 18 days
Historical Cost	$ 12,762	$ 13,160
Accumulated Amortization	8,926	12,200
Net	$ 3,836	$ 960