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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
CASH FLOWS PROVIDED BY OPERATING ACTIVITIES: |  |  |
Net income | $ 55,027,000 | $ 90,284,000 | $ 33,464,000
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation | 88,585,000 | 85,120,000 | 82,445,000
Gain on disposition of assets | (7,244,000) | (5,499,000) | (10,502,000)
Deferred income taxes | 5,351,000 | (47,228,000) | 13,490,000
Share-based payment arrangement compensation expense | 3,323,000 | 1,250,000 | 883,000
Distribution from affiliate | 227,000 | 400,000 |
Equity in (earnings) loss from affiliate | (493,000) | 271,000 | 1,018,000
Adoption of accounting standard (Note 2) | 485,000 |  |
Tax benefits from share-based payment arrangement exercises |  |  | 46,000
Changes in other current operating items: |  |  |
Receivables | (8,131,000) | (5,974,000) | 8,518,000
Prepaid expenses and other | (114,000) | (503,000) | (1,173,000)
Accounts payable | 1,800,000 | 11,000 | 594,000
Insurance and claims accruals | 1,926,000 | 6,737,000 | 3,205,000
Accrued liabilities | 9,881,000 | (2,990,000) | 1,813,000
Net cash provided by operating activities | 150,623,000 | 121,879,000 | 133,801,000
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Proceeds from revenue equipment dispositions | 5,000 | 47,000 | 23,000
Proceeds from buildings and land, office equipment and other dispositions | 5,000 | 47,000 | 23,000
Other | (15,000) | (43,000) | (42,000)
Net cash used for investing activities | (101,270,000) | (95,318,000) | (97,290,000)
CASH FLOWS USED FOR FINANCING ACTIVITIES: |  |  |
Borrowings under credit facility and long-term debt |  | 40,831,000 | 179,687,000
Repayment of borrowings under credit facility and long-term debt |  | (48,717,000) | (209,668,000)
Dividends on common stock | (5,459,000) | (4,361,000) | (3,252,000)
Repurchase and retirement of common stock | (3,756,000) |  | (7,513,000)
Issuance of common stock from share-based payment arrangement exercises | 938,000 | 1,090,000 | 4,416,000
Employee taxes paid in exchange for shares withheld | (104,000) | (47,000) | (127,000)
Cash in lieu of fractional shares from stock split |  | (54,000) |
Net cash used for financing activities | (8,381,000) | (11,258,000) | (36,457,000)
NET CHANGE IN CASH AND CASH EQUIVALENTS | 40,972,000 | 15,303,000 | 54,000
CASH AND CASH EQUIVALENTS: |  |  |
Beginning of year | 15,791,000 | 488,000 | 434,000
End of year | 56,763,000 | 15,791,000 | 488,000
Change in property and equipment not yet paid | (3,604,000) | (1,559,000) | 4,511,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: |  |  |
Income taxes | 9,526,000 | 14,355,000 | 31,000
Interest | 50,000 | 151,000 | 214,000
Revenue Equipment [Member] |  |  |
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Revenue equipment additions | (161,160,000) | (148,856,000) | (154,984,000)
Proceeds from revenue equipment dispositions | 67,262,000 | 61,227,000 | 65,082,000
Proceeds from buildings and land, office equipment and other dispositions | 67,262,000 | 61,227,000 | 65,082,000
Buildings And Land Office Equipment And Other [Member] |  |  |
CASH FLOWS USED FOR INVESTING ACTIVITIES: |  |  |
Revenue equipment additions | $ (7,362,000) | $ (7,693,000) | $ (7,369,000)

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- Definition Amount of cash (inflow) outflow from investing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 25 -Paragraph 19A -URI http://asc.fasb.org/extlink&oid=107668666&loc=SL79513924-113897 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from issuance of shares under share-based compensation arrangement. Issuance includes, but is not limited to, exercise of stock options and similar instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109197908&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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