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Segment Information (Schedule Of Geographic Distribution Of Rigs By Segment) (Details) | Jun. 30, 2021 jackup rigs
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Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 60
Held-for-sale |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 1
Floaters |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 16
Floaters | Held-for-sale |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs |
Jackups |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 35
Jackups | Held-for-sale |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 1
Other |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 9
Other | Held-for-sale |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
ARO |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | jackup | 7
ARO | Held-for-sale |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
North & South America |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 11
North & South America | Floaters |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 5
North & South America | Jackups |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 6
North & South America | Other |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
North & South America | ARO |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
Europe & the Mediterranean |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 21
Europe & the Mediterranean | Floaters |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 7
Europe & the Mediterranean | Jackups |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 14
Europe & the Mediterranean | Other |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
Europe & the Mediterranean | ARO |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
Middle East & Africa |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 19
Middle East & Africa | Floaters |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 2
Middle East & Africa | Jackups |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 8
Middle East & Africa | Other |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 9
Middle East & Africa | ARO |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | jackup | 7
Asia & Pacific Rim |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 8
Asia & Pacific Rim | Floaters |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 2
Asia & Pacific Rim | Jackups |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 6
Asia & Pacific Rim | Other |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0
Asia & Pacific Rim | ARO |
Segment Reporting Information [Line Items] |
Total Number Of Contract Drilling Rigs | 0

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