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Note 15 - Segment Information (Detail) - Segment Information (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Revenue |  |  |  |  |  |  |  |  | $ 681,236 | $ 658,778 | $ 656,344
Intersegment revenue |  |  |  |  |  |  |  |  | (6,982) | (6,151) | (6,595)
Operating income (loss) | 5,149 | 4,645 | 11,059 | 2,357 | 1,159 | (9,754) | 7,234 | 301 | 23,209 | (1,061) | 26,008
Depreciation and amortization |  |  |  |  |  |  |  |  | 43,222 | 46,274 | 51,807
Goodwill at carrying value |  |  |  |  |  |  |  |  |  |  | 11,539
Total assets | 400,232 |  |  |  | 439,825 |  |  |  | 400,232 | 439,825 | 441,179
Capital expenditures |  |  |  |  |  |  |  |  | (13,154) | 50,741 | 82,272
Asset-Based Truckload Services [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 647,986 | 625,252 | 610,291
Operating income (loss) |  |  |  |  |  |  |  |  | 34,185 | 10,438 | 35,390
Depreciation and amortization |  |  |  |  |  |  |  |  | 42,015 | 44,825 | 50,821
Goodwill at carrying value |  |  |  |  |  |  |  |  |  |  | 11,539
Total assets | 363,223 |  |  |  | 405,699 |  |  |  | 363,223 | 405,699 | 391,510
Capital expenditures |  |  |  |  |  |  |  |  | (14,093) | 49,210 | 81,316
Solutions [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 33,250 | 33,526 | 46,053
Intersegment revenue |  |  |  |  |  |  |  |  | (6,982) | (6,151) | (6,595)
Operating income (loss) |  |  |  |  |  |  |  |  | (741) | 1,687 | 1,462
Depreciation and amortization |  |  |  |  |  |  |  |  | 26 | 24 | 23
Total assets | 11,963 |  |  |  | 6,138 |  |  |  | 11,963 | 6,138 | 6,983
Capital expenditures |  |  |  |  |  |  |  |  |  |  | 2
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | (10,235) | (13,186) | (10,844)
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,181 | 1,425 | 963
Total assets | 25,046 |  |  |  | 27,988 |  |  |  | 25,046 | 27,988 | 42,686
Capital expenditures |  |  |  |  |  |  |  |  | $ 939 | $ 1,531 | $ 954

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