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Consolidated Statements of Cash Flows (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Operations: |  |  |
Net income | $ 27,267,000 | $ 24,285,000 | $ 19,742,000
Adjustments to reconcile net income to net cash flows from operating activities: |  |  |
Depreciation | 60,904,000 | 57,531,000 | 51,916,000
Gain on disposition of revenue equipment | (5,302,000) | (3,800,000) | (1,110,000)
Deferred income taxes | 4,822,000 | 10,076,000 | 10,550,000
Tax benefits from share-based payment arrangement exercises | 409,000 | 164,000 | 385,000
Excess tax benefits from share-based payment arrangement exercises | (336,000) | (142,000) | (338,000)
Share-based payment arrangement compensation expense | 1,225,000 | 1,349,000 | 1,264,000
Income before income taxes attributable to noncontrolling interest | 497,000 | 807,000 | 631,000
Changes in other current operating items: |  |  |
Receivables | (7,795,000) | 1,247,000 | (14,246,000)
Prepaid expenses and other | (64,000) | (2,020,000) | (1,078,000)
Accounts payable | 1,021,000 | (1,585,000) | 348,000
Insurance and claims accruals | 796,000 | (4,611,000) | (1,569,000)
Accrued liabilities | 2,095,000 | 2,905,000 | (1,973,000)
Net cash provided by operating activities | 85,539,000 | 86,206,000 | 64,522,000
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Other | (34,000) | 102,000 | (26,000)
Net cash used for investing activities | (88,115,000) | (48,271,000) | (81,181,000)
CASH FLOWS (USED FOR) PROVIDED BY FINANCING ACTIVITIES: |  |  |
Borrowings under credit facility and long-term debt | 21,517,000 | 37,632,000 | 160,395,000
Repayment of borrowings under credit facility and long-term debt | (18,791,000) | (56,978,000) | (142,548,000)
Dividends on common stock | (18,679,000) | (1,758,000) | (877,000)
Issuance of common stock from share-based payment arrangement exercises | 968,000 | 137,000 | 303,000
Excess tax benefits from share-based payment arrangement exercises | 336,000 | 142,000 | 338,000
Noncontrolling interest distributions | (123,000) | (529,000) | (451,000)
Change in net checks issued in excess of cash balances |  | (1,066,000) | (605,000)
Net cash (used for) provided by financing activities | (14,772,000) | (22,420,000) | 16,555,000
NET CHANGE IN CASH AND CASH EQUIVALENTS | (17,348,000) | 15,515,000 | (104,000)
CASH AND CASH EQUIVALENTS: |  |  |
Beginning of year | 20,821,000 | 5,306,000 | 5,410,000
End of year | 3,473,000 | 20,821,000 | 5,306,000
Cash paid (received) for: |  |  |
Interest | 9,000 | 36,000 | 225,000
Income taxes | 8,836,000 | (2,559,000) | 13,789,000
Non-cash investing activities: |  |  |
Change in property and equipment not yet paid for | (6,203,000) | 1,499,000 | 253,000
Revenue Equipment [Member] |  |  |
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Additions to property, plant, and equipment | (121,777,000) | (75,332,000) | (109,345,000)
Buildings And Land, Office Equipment And Other [Member] |  |  |
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Additions to property, plant, and equipment | (13,576,000) | (9,573,000) | (11,959,000)
Revenue Equipment [Member] |  |  |
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Proceeds from disposition of property, plant, and equipment | 46,634,000 | 36,457,000 | 40,062,000
Buildings And Land, Office Equipment And Other [Member] |  |  |
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Proceeds from disposition of property, plant, and equipment | $ 638,000 | $ 75,000 | $ 87,000

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 -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 -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c -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. + Details
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