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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2012
Fair Value Disclosures [Abstract] |
Assets and liabilities measured at fair value on recurring basis | The following tables present our assets and liabilities that are measured at fair value on a recurring basis and the levels of inputs used to measure fair value:
|  |  |  | Fair Value Measurements At December 31, 2012 Using |  |
|  | Balance Sheet Location |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  |  |  | (In thousands)
Assets: |  |  |  |  |  |  |  |  |  |
Interest rate swap |  | Prepaid expenses and other current assets |  | $ | — |  |  | 1,313 |  |  | — |  |  | 1,313 |
Interest rate swaps |  | DFL and other assets |  | — |  |  | 15,412 |  |  | — |  |  | 15,412 |
Investments held in Rabbi Trusts: |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 4,055 |  |  | — |  |  | — |  |  | 4,055 |
U.S. equity mutual funds |  |  |  | 10,871 |  |  | — |  |  | — |  |  | 10,871 |
Foreign equity mutual funds |  |  |  | 2,974 |  |  | — |  |  | — |  |  | 2,974 |
Fixed income mutual funds |  |  |  | 4,526 |  |  | — |  |  | — |  |  | 4,526 |
Investments held in Rabbi Trusts |  | DFL and other assets |  | 22,426 |  |  | — |  |  | — |  |  | 22,426 |
Total assets at fair value |  |  |  | $ | 22,426 |  |  | 16,725 |  |  | — |  |  | 39,151 |
Liabilities: |  |  |  |  |  |  |  |  |  |
Contingent consideration |  | Other non-current liabilities |  | — |  |  | — |  |  | 478 |  |  | 478 |
Total liabilities at fair value |  |  |  | $ | — |  |  | — |  |  | 478 |  |  | 478 |
|  |  |  | Fair Value Measurements At December 31, 2011 Using |  |
|  | Balance Sheet Location |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  |  |  | (In thousands)
Assets: |  |  |  |  |  |  |  |  |  |
Interest rate swaps |  | DFL and other assets |  | $ | — |  |  | 21,843 |  |  | — |  |  | 21,843 |
Investments held in Rabbi Trusts: |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  | 3,783 |  |  | — |  |  | — |  |  | 3,783 |
U.S. equity mutual funds |  |  |  | 8,850 |  |  | — |  |  | — |  |  | 8,850 |
Foreign equity mutual funds |  |  |  | 2,526 |  |  | — |  |  | — |  |  | 2,526 |
Fixed income mutual funds |  |  |  | 3,537 |  |  | — |  |  | — |  |  | 3,537 |
Investments held in Rabbi Trusts |  | DFL and other assets |  | 18,696 |  |  | — |  |  | — |  |  | 18,696 |
Total assets at fair value |  |  |  | $ | 18,696 |  |  | 21,843 |  |  | — |  |  | 40,539 |
Liabilities: |  |  |  |  |  |  |  |  |  |
Contingent consideration |  | Accrued Expenses |  | $ | — |  |  | — |  |  | 1,000 |  |  | 1,000 |
Total liabilities at fair value |  |  |  | $ | — |  |  | — |  |  | 1,000 |  |  | 1,000 |
Assets and liabilities measured at fair value on nonrecurring basis | The following table presents our assets that are measured at fair value on a nonrecurring basis and the levels of inputs used to measure fair value:
|  | Fair Value Measurements At December 31, 2012 Using |  | Year ended December 31, 2012
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total Losses (2)
Assets held for sale: |  |  |  |  |  |  |  |
Revenue earning equipment: (1) |  |  |  |  |  |  |  |
Trucks |  | $ | — |  |  | — |  |  | 14,263 |  |  | $ | 12,853 |
Tractors |  | — |  |  | — |  |  | 11,619 |  |  | 4,058 |
Trailers |  | — |  |  | — |  |  | 585 |  |  | 1,489 |
Total assets at fair value |  | $ | — |  |  | — |  |  | 26,467 |  |  | $ | 18,400 |
|  | Fair Value Measurements At December 31, 2011 Using |  | Year ended December 31, 2011
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total Losses (2)
Assets held for sale: |  |  |  |  |  |  |  |
Revenue earning equipment (1) |  |  |  |  |  |  |  |
Trucks |  | $ | — |  |  | — |  |  | 6,147 |  |  | $ | 5,556 |
Tractors |  | — |  |  | — |  |  | 3,040 |  |  | 1,982 |
Trailers |  | — |  |  | — |  |  | 296 |  |  | 1,353 |
Total assets at fair value |  | $ | — |  |  | — |  |  | 9,483 |  |  | $ | 8,891 |
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(1) | Represents the portion of all revenue earning equipment held for sale that is recorded at fair value, less costs to sell.
(2) | Total losses represent fair value adjustments for all vehicles held for sale throughout the period for which fair value less costs to sell was less than carrying value.

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- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 33 -Subparagraph a, b -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 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19296-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258 + Details
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