Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 33,232	$ 17,303
Trade receivables, net	61,009	77,034
Prepaid tires	9,584	10,160
Prepaid shop supplies	0	2,056
Other current assets	8,316	8,992
Income tax receivable	7,641	19,920
Deferred income taxes, net	16,662	14,767
Total current assets	136,444	150,232
PROPERTY AND EQUIPMENT
Land and land improvements	37,899	22,463
Buildings	47,837	34,151
Leasehold improvements	1,703	8,033
Furniture and fixtures	2,096	2,096
Shop and service equipment	10,917	10,820
Revenue equipment	571,281	600,335
Construction in progress	213	668
Property and equipment, gross	671,946	678,566
Less accumulated depreciation	197,948	198,007
Property and equipment, net	473,998	480,559
Goodwill	100,212	100,212
OTHER INTANGIBLES, NET	14,013	16,380
OTHER ASSETS	11,363	12,611
Assets	736,030	759,994
CURRENT LIABILITIES
Accounts payable and accrued liabilities	7,516	8,261
Compensation and benefits	24,636	26,303
Insurance accruals	21,573	19,249
Other accruals	12,443	14,475
Total current liabilities	66,168	68,288
LONG-TERM LIABILITIES
Income taxes payable	16,228	18,296
Long-term debt	0	24,600
Deferred income taxes, net	112,118	101,605
Insurance accruals less current portion	59,435	59,300
Other long-term liabilities	12,153	11,318
Total long-term liabilities	$ 199,934	$ 215,119
COMMITMENTS AND CONTINGENCIES (Note 13)
STOCKHOLDERS' EQUITY
Preferred stock, par value $.01; authorized 5,000 shares; none issued	$ 0	$ 0
Capital stock, common, $.01 par value; authorized 395,000 shares; issued 90,689 in 2015 and 2014; outstanding 84,115 and 87,781 in 2015 and 2014, respectively	907	907
Additional paid-in capital	4,126	4,058
Retained earnings	575,948	509,834
Treasury stock, at cost; 6,574 and 2,908 shares in 2015 and 2014, respectively	(111,053)	(38,212)
Stockholders' Equity Attributable to Parent	469,928	476,587
Liabilities and Stockholders' Equity	$ 736,030	$ 759,994