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Stockholders' Equity (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2012
Cash Dividends | Cash Dividends — The Company paid cash dividends during the three months ended March 31, 2011 and 2012 as follows:
|  | Per Share |  |  | Total |
|  |  |  |  | (in thousands) |
2011: |  |  |  |  |  |  |  |
Paid on March 30, 2011 |  | $ | 0.05 |  |  | $ | 7,708 |
|  | Per Share |  |  | Total |
|  |  |  |  | (in thousands) |
2012: |  |  |  |  |  |  |  |
Paid on March 30, 2012 |  | $ | 0.05 |  |  | $ | 7,788 |

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- Definition Dividend Activity + References No definition available. + Details
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Namespace Prefix: | pten_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration