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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 |  |

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