XML 84 R71.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Business Segments - Depreciation, Depletion, Amortization and Impairment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion, amortization and impairment | $ 212,384 | $ 219,328 | $ 422,276 | $ 375,545
Other Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion, amortization and impairment | 9,829 | 8,120 | 19,143 | 10,292
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion, amortization and impairment | 1,881 | 1,989 | 4,118 | 3,225
Operating Segments | Contract Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion, amortization and impairment | 130,938 | 161,414 | 261,855 | 271,973
Operating Segments | Pressure Pumping |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion, amortization and impairment | 57,862 | $ 47,805 | 114,384 | $ 90,055
Operating Segments | Directional Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, depletion, amortization and impairment | $ 11,874 |  | $ 22,776 |

X
- Definition Depreciation depletion amortization and impairment. + References No definition available. + Details
Name: | pten_DepreciationDepletionAmortizationAndImpairment
Namespace Prefix: | pten_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pten_ContractDrillingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pten_PressurePumpingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pten_DirectionalDrillingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |