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Goodwill And Other Intangible Assets (Components Of Other Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 years | Dec. 31, 2010 years
Schedule Of Intangible Assets [Line Items] |  |
Intangible Assets, Gross Amount | $ 25,146 | $ 8,052
Intangible Assets, Accumulated Amortization | (3,479) | (2,196)
Intangible Assets, Net Carrying Value | 21,667 | 5,856
Hub [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Intangible Assets, Gross Amount | 9,784 | 8,052
Intangible Assets, Accumulated Amortization | (2,839) | (2,196)
Intangible Assets, Net Carrying Value | 6,945 | 5,856
Intangible assets - weighted average life (years) | 7.56 |
Mode [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Intangible assets - weighted average life (years) | 17.25 |
Trade Name [Member] | Hub [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Indefinite-Lived Intangible Assets, Gross Amount | 2,904 | 2,904
Indefinite-Lived Intangible Assets, Net Carrying Value | 2,904 | 2,904
Customer Relationships [Member] | Hub [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross Amount | 5,181 | 3,823
Finite-Lived Intangible Assets, Accumulated Amortization | (1,547) | (1,232)
Finite-Lived Intangible Assets, Net Carrying Value | 3,634 | 2,591
Minimum Life (years) | 7 |
Average Life (years) |  | 15
Maximum Life (years) | 15 |
Relationships With Owner Operators [Member] | Hub [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross Amount | 1,179 | 805
Finite-Lived Intangible Assets, Accumulated Amortization | (786) | (541)
Finite-Lived Intangible Assets, Net Carrying Value | 393 | 264
Minimum Life (years) | 2 | 2
Maximum Life (years) | 6 | 6
Information Technology [Member] | Hub [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross Amount | 500 | 500
Finite-Lived Intangible Assets, Accumulated Amortization | (486) | (403)
Finite-Lived Intangible Assets, Net Carrying Value | 14 | 97
Average Life (years) | 6 | 6
Backlog/Open Orders [Member] | Hub [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross Amount | 20 | 20
Finite-Lived Intangible Assets, Accumulated Amortization | (20) | (20)
Average Life (years) | 1 | 1
Agency/Customer Relationships [Member] | Mode [Member] |  |
Schedule Of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross Amount | 15,362 |
Finite-Lived Intangible Assets, Accumulated Amortization | (640) |
Finite-Lived Intangible Assets, Net Carrying Value | $ 14,722 |
Life (years) | 18 |

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- Definition Intangible Assets, Gross (Excluding Goodwill). + References No definition available. + Details
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- Definition The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 44 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275 + Details
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- Definition Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275 + Details
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