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Industry Segments and Geographic Information (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Corporate Overhead Footnote |  |  |  |  |  |  |  |  |  |  |
General and administrative expense |  |  |  |  |  |  |  |  | $ 40,506 | $ 40,005 | $ 36,694
Depreciation and amortization |  |  |  |  |  |  |  |  | 2,327 | 3,365 | 2,917
Interest expense |  |  |  |  |  |  |  |  | 16,715 | 17,000 | 16,939
Other general corporate (income) expense |  |  |  |  |  |  |  |  | 2,711 | 1,638 | 15,043
Total |  |  |  |  |  |  |  |  | 62,259 | 62,008 | 71,593
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 300,145 | 276,155 | 329,489
Services and rentals |  |  |  |  |  |  |  |  | 609,253 | 604,676 | 515,786
Intersegment eliminations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues | 225,435 | 254,303 | 221,101 | 208,559 | 231,140 | 233,986 | 234,909 | 180,796 | 909,398 | 880,831 | 845,275
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 80,985 | 75,747 | 94,839
Interest expense |  |  |  |  |  |  |  |  | 17,417 | 17,378 | 17,195
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | (128) | 28,183 | 6,233
Assets | 1,206,533 |  |  |  | 1,261,818 |  |  |  | 1,206,533 | 1,261,818 | 1,203,310
Capital expenditures |  |  |  |  |  |  |  |  | 101,379 | 107,524 | 123,604
Fluids Division [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 281,585 | 257,558 | 229,426
Services and rentals |  |  |  |  |  |  |  |  | 101,040 | 76,858 | 75,032
Intersegment eliminations |  |  |  |  |  |  |  |  | 38 | 132 | 78
Revenues |  |  |  |  |  |  |  |  | 382,663 | 334,548 | 304,536
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 22,508 | 19,034 | 19,596
Interest expense |  |  |  |  |  |  |  |  | 37 | 77 | 121
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | 69,438 | 50,830 | 32,076
Assets | 400,028 |  |  |  | 387,034 |  |  |  | 400,028 | 387,034 | 375,741
Capital expenditures |  |  |  |  |  |  |  |  | 45,238 | 31,839 | 17,922
Production Testing [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 0 | 0 | 0
Services and rentals |  |  |  |  |  |  |  |  | 195,983 | 207,984 | 139,755
Intersegment eliminations |  |  |  |  |  |  |  |  | 0 | 0 | 1
Revenues |  |  |  |  |  |  |  |  | 195,983 | 207,984 | 139,756
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 27,262 | 22,261 | 13,893
Interest expense |  |  |  |  |  |  |  |  | 19 | 13 | 32
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | 14,093 | 39,847 | 35,969
Assets | 327,413 |  |  |  | 337,208 |  |  |  | 327,413 | 337,208 | 119,311
Capital expenditures |  |  |  |  |  |  |  |  | 26,757 | 40,025 | 19,925
Compressco [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 8,293 | 6,322 | 13,201
Services and rentals |  |  |  |  |  |  |  |  | 112,994 | 103,144 | 82,567
Intersegment eliminations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | 121,287 | 109,466 | 95,768
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 14,511 | 13,398 | 12,791
Interest expense |  |  |  |  |  |  |  |  | 500 | 81 | (20)
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | 20,200 | 20,598 | 15,799
Assets | 230,829 |  |  |  | 219,838 |  |  |  | 230,829 | 219,838 | 210,754
Capital expenditures |  |  |  |  |  |  |  |  | 24,103 | 22,215 | 12,471
Production Enhancement Division Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services and rentals |  |  |  |  |  |  |  |  | (1,747) | (2,354) | 0
Revenues |  |  |  |  |  |  |  |  | (1,747) | (2,354) | 0
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | (105) | 0 | 0
Total Production Enhancement Division [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 8,293 | 6,322 | 13,201
Services and rentals |  |  |  |  |  |  |  |  | 307,230 | 308,774 | 222,322
Intersegment eliminations |  |  |  |  |  |  |  |  | 0 | 0 | 1
Revenues |  |  |  |  |  |  |  |  | 315,523 | 315,096 | 235,524
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 41,773 | 35,659 | 26,684
Interest expense |  |  |  |  |  |  |  |  | 519 | 94 | 12
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | 34,188 | 60,445 | 51,768
Assets | 558,242 |  |  |  | 557,046 |  |  |  | 558,242 | 557,046 | 330,065
Capital expenditures |  |  |  |  |  |  |  |  | 50,860 | 62,240 | 32,396
Offshore Services [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 4,707 | 6,267 | 4,921
Services and rentals |  |  |  |  |  |  |  |  | 200,983 | 218,477 | 217,341
Intersegment eliminations |  |  |  |  |  |  |  |  | 50,122 | 41,199 | 65,038
Revenues |  |  |  |  |  |  |  |  | 255,812 | 265,943 | 287,300
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 14,254 | 16,650 | 14,502
Interest expense |  |  |  |  |  |  |  |  | 109 | 109 | 45
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | 22,870 | 21,706 | 18,455
Assets | 181,617 |  |  |  | 188,034 |  |  |  | 181,617 | 188,034 | 216,927
Capital expenditures |  |  |  |  |  |  |  |  | 4,207 | 12,050 | 64,420
Maritech [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 5,560 | 6,008 | 81,941
Services and rentals |  |  |  |  |  |  |  |  | 0 | 150 | 799
Intersegment eliminations |  |  |  |  |  |  |  |  | 0 | 0 | 0
Revenues |  |  |  |  |  |  |  |  | 5,560 | 6,158 | 82,740
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 123 | 1,039 | 31,314
Interest expense |  |  |  |  |  |  |  |  | 11 | 98 | 78
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | (64,365) | (42,790) | (26,275)
Assets | 46,903 |  |  |  | 75,383 |  |  |  | 46,903 | 75,383 | 63,294
Capital expenditures |  |  |  |  |  |  |  |  | 21 | 343 | 7,924
Offshore Division Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services and rentals |  |  |  |  |  |  |  |  | 0 | 0 | 0
Intersegment eliminations |  |  |  |  |  |  |  |  | (50,122) | (41,199) | (65,036)
Revenues |  |  |  |  |  |  |  |  | (50,122) | (41,199) | (65,036)
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 0 | 0 | (174)
Interest expense |  |  |  |  |  |  |  |  | 0 | 0 | 0
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 1,802
Assets | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | (66)
Total Offshore Division [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 10,267 | 12,275 | 86,862
Services and rentals |  |  |  |  |  |  |  |  | 200,983 | 218,627 | 218,140
Intersegment eliminations |  |  |  |  |  |  |  |  | 0 | 0 | 2
Revenues |  |  |  |  |  |  |  |  | 211,250 | 230,902 | 305,004
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 14,377 | 17,689 | 45,642
Interest expense |  |  |  |  |  |  |  |  | 120 | 207 | 123
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | (41,495) | (21,084) | (6,018)
Assets | 228,520 |  |  |  | 263,417 |  |  |  | 228,520 | 263,417 | 280,221
Capital expenditures |  |  |  |  |  |  |  |  | 4,228 | 12,393 | 72,278
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Intersegment eliminations |  |  |  |  |  |  |  |  | (38) | (132) | (81)
Revenues |  |  |  |  |  |  |  |  | (38) | (132) | (81)
Corporate Overhead [Member] |  |  |  |  |  |  |  |  |  |  |
Industry Segments Details [Line Items] |  |  |  |  |  |  |  |  |  |  |
Services and rentals |  |  |  |  |  |  |  |  | 0 | 417 | 292
Revenues |  |  |  |  |  |  |  |  | 0 | 417 | 292
Depreciation, depletion, amortization, and accretion |  |  |  |  |  |  |  |  | 2,327 | 3,365 | 2,917
Interest expense |  |  |  |  |  |  |  |  | 16,741 | 17,000 | 16,939
Income (loss) before taxes and discontinued operations |  |  |  |  |  |  |  |  | (62,259) | (62,008) | (71,593)
Assets | 19,743 |  |  |  | 54,321 |  |  |  | 19,743 | 54,321 | 217,283
Capital expenditures |  |  |  |  |  |  |  |  | $ 1,053 | $ 1,052 | $ 1,008

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