Revenue (Narrative - Performance Obligations) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023
Remaining performance obligation amount	$ 2,435,837	$ 2,325,533
Material Rights [Member]
Remaining performance obligation amount	$ 472,957	$ 457,391

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

Name:	us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant