XML 86 R72.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Cash Dividends (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Dividends Payable [Line Items] |  |  |
Cash dividends paid, per share | $ 0.14 | $ 0.08 | $ 0.16
Cash dividends paid | $ 30,589 | $ 16,315 | $ 23,579
Installment 1, FY 2018 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date | Mar. 22, 2018 |  |
Cash dividends paid, per share | $ 0.02 |  |
Cash dividends paid | $ 4,443 |  |
Installment 2, FY 2018 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date | Jun. 21, 2018 |  |
Cash dividends paid, per share | $ 0.04 |  |
Cash dividends paid | $ 8,832 |  |
Installment 3, FY 2018 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date | Sep. 20, 2018 |  |
Cash dividends paid, per share | $ 0.04 |  |
Cash dividends paid | $ 8,685 |  |
Installment 4, FY 2018 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date | Dec. 20, 2018 |  |
Cash dividends paid, per share | $ 0.04 |  |
Cash dividends paid | $ 8,629 |  |
Installment 1, FY 2017 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  | Mar. 22, 2017 |
Cash dividends paid, per share |  | $ 0.02 |
Cash dividends paid |  | $ 3,326 |
Installment 2, FY 2017 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  | Jun. 22, 2017 |
Cash dividends paid, per share |  | $ 0.02 |
Cash dividends paid |  | $ 4,269 |
Installment 3, FY 2017 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  | Sep. 21, 2017 |
Cash dividends paid, per share |  | $ 0.02 |
Cash dividends paid |  | $ 4,271 |
Installment 4, FY 2017 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  | Dec. 21, 2017 |
Cash dividends paid, per share |  | $ 0.02 |
Cash dividends paid |  | $ 4,449 |
Installment 1, FY 2016 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  |  | Mar. 24, 2016
Cash dividends paid, per share |  |  | $ 0.10
Cash dividends paid |  |  | $ 14,712
Installment 2, FY 2016 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  |  | Jun. 23, 2016
Cash dividends paid, per share |  |  | $ 0.02
Cash dividends paid |  |  | $ 2,953
Installment 3, FY 2016 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  |  | Sep. 22, 2016
Cash dividends paid, per share |  |  | $ 0.02
Cash dividends paid |  |  | $ 2,953
Installment 4, FY 2016 |  |  |
Dividends Payable [Line Items] |  |  |
Cash dividends paid, date |  |  | Dec. 22, 2016
Cash dividends paid, per share |  |  | $ 0.02
Cash dividends paid |  |  | $ 2,961

X
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareCashPaid
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the declared dividend will be paid, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_DividendsCommonStockCash
Namespace Prefix: | us-gaap_
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_DividendsPayableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentOneFiscalYearTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentTwoFiscalYearTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentThreeFiscalYearTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentFourFiscalYearTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentOneFiscalYearTwoThousandSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentTwoFiscalYearTwoThousandSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentThreeFiscalYearTwoThousandSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentFourFiscalYearTwoThousandSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentOneFiscalYearTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentTwoFiscalYearTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentThreeFiscalYearTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=pten_InstallmentFourFiscalYearTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |