XML 72 R62.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Estimated Fair Value of Outstanding Debt Balances (Detail) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | $ 615,000 | $ 855,000
Fair value of Debt | 574,052 | 793,441
Revolving Credit Facility |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt | 15,000 |
Fair value of Debt | 15,000 |
Term Loan Facility |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt |  | 70,000
Fair value of Debt |  | 70,000
2015 Term Loan |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Carrying value of Debt |  | 185,000
Fair value of Debt |  | 185,000
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 | 300,000
Fair value of Debt | 288,203 | 279,635
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 | 300,000
Fair value of Debt | $ 270,849 | $ 258,806

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=73719730&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=73719730&loc=d3e13476-108611 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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 FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: 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 3: 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 + 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_CreditFacilityAxis=pten_TermLoanFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=pten_TwoThousandFifteenTermLoanAgreementMember
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: |