XML 75 R91.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Estimated Fair Value of Outstanding Debt Balances (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | $ 985,500 us-gaap_LongTermDebt | $ 692,500 us-gaap_LongTermDebt
Fair value of Debt | 943,019 us-gaap_DebtInstrumentFairValue | 683,565 us-gaap_DebtInstrumentFairValue
Revolving Credit Facility |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | 303,000 us-gaap_LongTermDebt / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
Fair value of Debt | 303,000 us-gaap_DebtInstrumentFairValue / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
Term Loan Facility |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | 82,500 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pten_TermLoanFacilityMember | 92,500 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pten_TermLoanFacilityMember
Fair value of Debt | 82,500 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = pten_TermLoanFacilityMember | 92,500 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = pten_TermLoanFacilityMember
4.97% Series A Senior Notes, Due October 5th 2020 |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | 300,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pten_SeriesASeniorNotesFourPointNineSevenPercentDueOctoberFiveTwentyTwentyMember | 300,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pten_SeriesASeniorNotesFourPointNineSevenPercentDueOctoberFiveTwentyTwentyMember
Fair value of Debt | 288,346 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = pten_SeriesASeniorNotesFourPointNineSevenPercentDueOctoberFiveTwentyTwentyMember | 304,293 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = pten_SeriesASeniorNotesFourPointNineSevenPercentDueOctoberFiveTwentyTwentyMember
4.27% Series B Senior Notes, Due June 14th 2022 |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | 300,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pten_SeriesBSeniorNotesFourPointTwoSevenPercentDueJuneFourteenTwentyTwentyTwoMember | 300,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = pten_SeriesBSeniorNotesFourPointTwoSevenPercentDueJuneFourteenTwentyTwentyTwoMember
Fair value of Debt | $ 269,173 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = pten_SeriesBSeniorNotesFourPointTwoSevenPercentDueJuneFourteenTwentyTwentyTwoMember | $ 286,772 us-gaap_DebtInstrumentFairValue / us-gaap_DebtInstrumentAxis = pten_SeriesBSeniorNotesFourPointTwoSevenPercentDueJuneFourteenTwentyTwentyTwoMember

X
- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13476-108611 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pten_SeriesASeniorNotesFourPointNineSevenPercentDueOctoberFiveTwentyTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pten_SeriesBSeniorNotesFourPointTwoSevenPercentDueJuneFourteenTwentyTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pten_TermLoanFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |