Goodwill and Other Intangible Assets (Changes in Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2012	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Ending Gross Amount	$ 292,307		$ 296,790
Finite-lived intangible assets, Accumulated Amortization	(226,329)		(217,064)
Indefinite-lived intangible assets, Ending Gross Amount	88,069		90,355
Indefinite-lived intangible assets, Accumulated Amortization	$ (1,585)		(1,585)
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	4 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	40 years
Engineering drawings
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Ending Gross Amount	$ 89,699		90,638
Finite-lived intangible assets, Accumulated Amortization	$ (86,275)		(83,620)
Engineering drawings | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	10 years
Engineering drawings | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	22 years
Existing customer relationships
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)		5 years
Finite-lived intangible assets, Ending Gross Amount	$ 82,420		85,214
Finite-lived intangible assets, Accumulated Amortization	$ (67,279)		(62,796)
Existing customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	5 years
Existing customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	10 years
Patents
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Ending Gross Amount	$ 26,339		27,015
Finite-lived intangible assets, Accumulated Amortization	$ (26,339)		(27,015)
Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	9 years
Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	16 years
Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, Ending Gross Amount	$ 93,849		93,923
Finite-lived intangible assets, Accumulated Amortization	$ (46,436)		$ (43,633)
Other | Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	4 years
Other | Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Life (Years)	40 years