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OPERATING SEGMENT DATA (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues | $ 537,042 | $ 577,546 | $ 510,543 | $ 440,867 | $ 463,241 | $ 510,887 | $ 498,550 | $ 434,931 | $ 2,065,999 | $ 1,907,609 | $ 1,657,864
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Gain on sale of property and equipment |  |  |  |  |  |  |  |  | (735) | (2,360) | (981)
Pension settlement expense |  |  |  |  |  |  |  |  |  | 1,125 | 178
Operating expenses and costs | 548,058 | 565,313 | 503,342 | 463,854 | 461,606 | 489,769 | 489,552 | 456,923 | 2,080,567 | 1,897,850 | 1,712,409
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) | (11,016) | 12,233 | 7,201 | (22,987) | 1,635 | 21,118 | 8,998 | (21,992) | (14,568) | 9,759 | (54,545)
OTHER INCOME (EXPENSE) |  |  |  |  |  |  |  |  |  |  |
Interest and dividend income |  |  |  |  |  |  |  |  | 808 | 1,069 | 1,194
Interest expense and other related financing costs |  |  |  |  |  |  |  |  | (5,273) | (3,953) | (2,852)
Other, net |  |  |  |  |  |  |  |  | 2,041 | 2,618 | 2,406
Other income (expense), net | (1,300) | (457) | (1,117) | 451 | 299 | (2,045) | (378) | 1,859 | (2,424) | (266) | 748
INCOME (LOSS) BEFORE INCOME TAXES |  |  |  |  |  |  |  |  | (16,992) | 9,493 | (53,797)
Freight Transportation |  |  |  |  |  |  |  |  |  |  |
FINANCIAL STATEMENT OPERATING SEGMENT DATA AND OPERATING RATIOS |  |  |  |  |  |  |  |  |  |  |
Minimum percentage of cities in the United States to which direct service is provided |  |  |  |  |  |  |  |  | 98.00% |  |
Minimum population of cities in the United States to which direct service is provided |  |  |  |  |  |  |  |  | 30,000 |  |
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | 1,725,134 | 1,730,773 | 1,514,108
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Salaries, wages, and benefits |  |  |  |  |  |  |  |  | 1,073,205 | 1,061,213 | 1,004,267
Fuel, supplies, and expenses |  |  |  |  |  |  |  |  | 330,063 | 333,779 | 262,420
Operating taxes and licenses |  |  |  |  |  |  |  |  | 43,337 | 45,469 | 43,539
Insurance |  |  |  |  |  |  |  |  | 20,751 | 24,490 | 18,745
Communications and utilities |  |  |  |  |  |  |  |  | 14,733 | 15,118 | 14,655
Depreciation and amortization |  |  |  |  |  |  |  |  | 78,748 | 70,810 | 68,695
Rents and purchased transportation |  |  |  |  |  |  |  |  | 176,977 | 169,212 | 154,119
Gain on sale of property and equipment |  |  |  |  |  |  |  |  | (711) | (2,370) | (1,338)
Pension settlement expense |  |  |  |  |  |  |  |  |  | 1,125 | 178
Other |  |  |  |  |  |  |  |  | 7,441 | 8,318 | 8,568
Operating expenses and costs |  |  |  |  |  |  |  |  | 1,744,544 | 1,727,164 | 1,573,848
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | (19,410) | 3,609 | (59,740)
Premium Logistics and Expedited Freight Services |  |  |  |  |  |  |  |  |  |  |
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | 132,326 |  |
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Purchased transportation |  |  |  |  |  |  |  |  | 101,559 |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 5,438 |  |
Salaries, benefits, insurance, and other |  |  |  |  |  |  |  |  | 22,927 |  |
Operating expenses and costs |  |  |  |  |  |  |  |  | 129,924 |  |
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | 2,402 |  |
Truck Brokerage and Management |  |  |  |  |  |  |  |  |  |  |
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | 42,710 | 25,429 | 19,241
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Operating expenses and costs |  |  |  |  |  |  |  |  | 40,087 | 23,539 | 17,868
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | 2,623 | 1,890 | 1,373
Emergency and Preventative Maintenance |  |  |  |  |  |  |  |  |  |  |
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | 115,968 | 92,554 | 74,927
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Operating expenses and costs |  |  |  |  |  |  |  |  | 114,033 | 89,572 | 72,208
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | 1,935 | 2,982 | 2,719
Household Goods Moving Services |  |  |  |  |  |  |  |  |  |  |
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | 77,619 | 85,611 | 63,733
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Operating expenses and costs |  |  |  |  |  |  |  |  | 76,927 | 82,893 | 62,014
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | 692 | 2,718 | 1,719
Other and eliminations |  |  |  |  |  |  |  |  |  |  |
OPERATING REVENUES |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | (27,758) | (26,758) | (14,145)
OPERATING EXPENSES AND COSTS |  |  |  |  |  |  |  |  |  |  |
Operating expenses and costs |  |  |  |  |  |  |  |  | (24,948) | (25,318) | (13,529)
OPERATING INCOME (LOSS) |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | $ (2,810) | $ (1,440) | $ (616)

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