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Balance Sheets (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 75,850 | $ 5,450
Customer receivables, less allowances of $9,173 and $8,475, respectively | 213,481 | 172,989
Other receivables | 4,441 | 7,711
Prepaid expenses and other current assets | 18,614 | 17,766
Deferred income taxes | 19,466 | 18,666
Total current assets | 331,852 | 222,582
Property and equipment: |  |
Revenue equipment | 789,984 | 701,648
Land and structures | 738,359 | 667,917
Other fixed assets | 214,816 | 170,533
Leasehold improvements | 5,773 | 4,421
Total property and equipment | 1,748,932 | 1,544,519
Less: Accumulated depreciation | (621,982) | (580,303)
Net property and equipment | 1,126,950 | 964,216
Goodwill | 19,463 | 19,463
Other assets | 34,809 | 33,620
Total assets | 1,513,074 | 1,239,881
Current liabilities: |  |
Accounts payable | 42,096 | 29,221
Compensation and benefits | 66,740 | 51,355
Claims and insurance accruals | 35,934 | 33,927
Other accrued liabilities | 20,686 | 18,413
Current maturities of long-term debt | 39,354 | 37,130
Total current liabilities | 204,810 | 170,046
Long-term debt | 229,831 | 234,087
Other non-current liabilities | 86,998 | 76,331
Deferred income taxes | 134,916 | 90,768
Total long-term liabilities | 451,745 | 401,186
Commitments and contingent liabilities | 0 | 0
Total liabilities | 656,555 | 571,232
Shareholders' equity |  |
Common stock-$0.10 par value, 70,000,000 shares authorized, 57,443,324 and 55,926,945 shares outstanding at December 31, 2011 and 2010, respectively | 5,744 | 5,593
Capital in excess of par value | 137,275 | 89,026
Retained earnings | 713,500 | 574,030
Total shareholders' equity | 856,519 | 668,649
Total liabilities and shareholders' equity | $ 1,513,074 | $ 1,239,881

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- Definition The current portion of the aggregate tax effects as of the balance sheet date of all future tax deductions arising from temporary differences between tax basis and generally accepted accounting principles basis recognition of assets, liabilities, revenues and expenses, which can only be deducted for tax purposes when permitted under enacted tax laws; after deducting the allocated valuation allowance, if any, to reduce such amount to net realizable value. Deferred tax liabilities and assets are classified as current or noncurrent based on the classification of the related asset or liability for financial reporting. A deferred tax liability or asset that is not related to an asset or liability for financial reporting, including deferred tax assets related to carryforwards, are classified according to the expected reversal date of the temporary difference. An unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward is presented as a reduction of the related deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6907571&loc=d3e31928-109318 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 41, 42, 43 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907571&loc=d3e31958-109318 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6907571&loc=d3e31917-109318 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907571&loc=d3e31931-109318 + Details
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