Subsequent Events (Details) - Disposal Group, Held-for-Sale, Not Discontinued Operations - Noble Globetrotter II and Noble Reacher Rigs - Forecast $ in Millions	3 Months Ended
Sep. 30, 2025 USD ($)
Minimum
Property, Plant and Equipment [Line Items]
Estimated non-cash charge, planned disposal	$ 85.0
Maximum
Property, Plant and Equipment [Line Items]
Estimated non-cash charge, planned disposal	$ 60.0

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482130/360-10-45-15

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration