XML 52 R31.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Property and Equipment (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Property Plant And Equipment [Abstract] |
Property and Equipment | Property and equipment consisted of the following at December 31, 2014 and 2013 (in thousands):
|  | 2014 |  |  | 2013 |
Equipment |  | $ | 6,679,894 |  |  | $ | 5,749,975 |
Oil and natural gas properties |  |  | 196,234 |  |  |  | 183,571 |
Buildings |  |  | 83,465 |  |  |  | 80,050 |
Land |  |  | 12,038 |  |  |  | 12,054 |
|  |  | 6,971,631 |  |  |  | 6,025,650 |
Less accumulated depreciation, depletion and impairment |  |  | (2,840,560 | ) |  |  | (2,390,109 | )
Property and equipment, net |  | $ | 4,131,071 |  |  | $ | 3,635,541 |
Summary of Depreciation, Depletion, Amortization and Impairment Expense related to Property and Equipment and Intangible Assets | Depreciation, depletion, amortization and impairment — The following table summarizes depreciation, depletion, amortization and impairment expense related to property and equipment and intangible assets for 2014, 2013 and 2012 (in thousands):
|  | 2014 |  |  | 2013 |  |  | 2012 |
Depreciation and impairment expense |  | $ | 693,390 |  |  | $ | 573,106 |  |  | $ | 502,953 |
Amortization expense |  |  | 3,643 |  |  |  | 3,993 |  |  |  | 4,110 |
Depletion expense |  |  | 21,697 |  |  |  | 20,370 |  |  |  | 19,551 |
Total |  | $ | 718,730 |  |  | $ | 597,469 |  |  | $ | 526,614 |

X
- Definition Schedule of depreciation and amortization expense. + References No definition available. + Details
Name: | pten_ScheduleOfDepreciationAndAmortizationExpenseTextBlock
Namespace Prefix: | pten_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 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 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration