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BUSINESS SEGMENT INFORMATION - Summary of information with respect to RPC's business segments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Revenues: |  |  |  |
Revenues | $ 491,121 | $ 472,418 | $ 1,374,508 | $ 1,475,081
Operating profit: |  |  |  |
Loss on disposition of assets, net | (1,268) | (1,551) | (5,665) | (4,859)
Total operating profit | 85,839 | 102,368 | 210,911 | 353,083
Interest expense | (283) | (441) | (1,565) | (1,687)
Interest income | 8 | 16 | 73 | 25
Other income, net | 1,279 | 1,104 | 1,643 | 1,144
Income before income taxes | 86,843 | 103,047 | 211,062 | 352,565
Identifiable assets at September 30 | 1,352,329 | 1,358,146 | 1,352,329 | 1,358,146
Capital expenditures |  |  | 159,854 | 273,801
Depreciation and amortization | 53,211 | 54,082 | 158,799 | 159,602
Operating Segments |  |  |  |
Revenues: |  |  |  |
Revenues | 491,121 | 472,418 | 1,374,508 | 1,475,081
Operating Segments | Technical Services |  |  |  |
Revenues: |  |  |  |
Revenues | 458,168 | 436,056 | 1,276,209 | 1,359,220
Operating profit: |  |  |  |
Total operating profit | 86,183 | 98,708 | 210,807 | 334,610
Identifiable assets at September 30 | 1,080,177 | 1,119,339 | 1,080,177 | 1,119,339
Capital expenditures |  |  | 129,599 | 230,110
Depreciation and amortization |  |  | 134,599 | 136,387
Operating Segments | Support Services |  |  |  |
Revenues: |  |  |  |
Revenues | 32,953 | 36,362 | 98,299 | 115,861
Operating profit: |  |  |  |
Total operating profit | 6,022 | 10,004 | 19,361 | 36,532
Identifiable assets at September 30 | 193,069 | 187,418 | 193,069 | 187,418
Capital expenditures |  |  | 29,104 | 40,668
Depreciation and amortization |  |  | 23,687 | 22,918
Corporate |  |  |  |
Operating profit: |  |  |  |
Total operating profit | (5,098) | (4,793) | (13,592) | (13,200)
Identifiable assets at September 30 | 79,083 | 51,389 | 79,083 | 51,389
Capital expenditures |  |  | 1,151 | 3,023
Depreciation and amortization |  |  | $ 513 | $ 297

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