XML 45 R35.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Fair Values of Financial Instruments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2012
Estimated Fair Value of Outstanding Debt Balances | The estimated fair value of the Company’s outstanding debt balances (including current portion) as of March 31, 2012 and December 31, 2011 is set forth below (in thousands):
|  | March 31, 2012 |  |  | December 31, 2011 |
|  | Carrying Value |  |  | Fair Value |  |  | Carrying Value |  |  | Fair Value |
Borrowings under Credit Agreement: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility |  | $ | 108,500 |  |  | $ | 108,500 |  |  | $ | 110,000 |  |  | $ | 110,000 |
Term loan facility |  |  | 90,000 |  |  |  | 90,000 |  |  |  | 92,500 |  |  |  | 92,500 |
Senior Notes |  |  | 300,000 |  |  |  | 322,849 |  |  |  | 300,000 |  |  |  | 315,942 |
Total debt |  | $ | 498,500 |  |  | $ | 521,349 |  |  | $ | 502,500 |  |  | $ | 518,442 |

X
- Definition Carrying Value and Fair Value of Financial Instruments Disclosure + References No definition available. + Details
Name: | pten_CarryingValueAndFairValueOfFinancialInstrumentsDisclosureTextBlock
Namespace Prefix: | pten_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration