Revenue (Narrative - Performance Obligations) (Details1) - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024
Remaining performance obligation amount	$ 2,920,580	$ 2,932,793
Material Rights [Member]
Remaining performance obligation amount	$ 507,479	$ 509,366
Material Rights [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-01-01
Period of remaining performance obligation, expected timing of satisfaction	9 months
Material Rights [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-01-01
Remaining performance obligation amount	$ 10,876
Remaining performance obligation, expected timing of satisfaction, year	2025
Material Rights [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-10-01
Period of remaining performance obligation, expected timing of satisfaction	1 year
Remaining performance obligation amount	$ 15,833
Remaining performance obligation, expected timing of satisfaction, year	2026
Aerospace [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-01-01
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: 2025-10-01
Period of remaining performance obligation, expected timing of satisfaction	40 years