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Revenue (Narrative - Performance Obligations) (Details1) - USD ($) $ in Thousands | Dec. 31, 2022 | Sep. 30, 2022
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Remaining performance obligation amount | $ 1,643,697 | $ 1,558,588
Material Rights [Member] |  |
Remaining performance obligation amount | $ 475,845 | $ 448,370
Material Rights [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01 |  |
Period of remaining performance obligation, expected timing of satisfaction | 9 months |
Remaining performance obligation amount | $ 12,811 |
Remaining performance obligation, expected timing of satisfaction, year | 2023 |
Material Rights [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-10-01 |  |
Period of remaining performance obligation, expected timing of satisfaction | 1 year |
Remaining performance obligation amount | $ 14,572 |
Remaining performance obligation, expected timing of satisfaction, year | 2024 |
Aerospace [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01 |  |
Period of remaining performance obligation, expected timing of satisfaction | 2 years |
Maximum [Member] | Material Rights [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01 |  |
Period of remaining performance obligation, expected timing of satisfaction | 40 years |

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