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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Operating revenue | $ 249,694 | $ 193,852 | $ 455,612 | $ 365,420
Operating expenses: |  |  |  |
Purchased transportation | 107,482 | 82,834 | 196,819 | 156,385
Salaries, wages and employee benefits | 61,886 | 44,391 | 115,789 | 85,813
Operating leases | 18,277 | 8,165 | 34,033 | 16,516
Depreciation and amortization | 9,519 | 7,751 | 18,202 | 14,764
Insurance and claims | 6,240 | 3,104 | 11,371 | 7,231
Fuel expense | 4,188 | 5,172 | 8,208 | 9,977
Other operating expenses | 22,194 | 14,840 | 43,033 | 30,868
Total operating expenses | 229,786 | 166,257 | 427,455 | 321,554
Income from operations | 19,908 | 27,595 | 28,157 | 43,866
Other income (expense): |  |  |  |
Interest expense | (570) | (101) | (934) | (183)
Other, net | (89) | 112 | (138) | 198
Total other income (expense) | (659) | 11 | (1,072) | 15
Income before income taxes | 19,249 | 27,606 | 27,085 | 43,881
Income taxes | 7,425 | 10,428 | 10,425 | 16,502
Net income and comprehensive income | $ 11,824 | $ 17,178 | $ 16,660 | $ 27,379
Net income per share: |  |  |  |
Basic (in dollars per share) | $ 0.38 | $ 0.56 | $ 0.54 | $ 0.89
Diluted (in dollars per share) | 0.38 | 0.55 | 0.53 | 0.87
Dividends per share (in dollars per share) | $ 0.12 | $ 0.12 | $ 0.24 | $ 0.24

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