Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS
Cash and cash equivalents	$ 23,823	$ 28,123
Trade receivables, net of $2.8 and $2.7 million allowance in 2024 and 2023, respectively	107,932	102,740
Prepaid tires	9,417	10,650
Other current assets	13,842	17,602
Income tax receivable	5,128	10,157
Total current assets	160,142	169,272
PROPERTY AND EQUIPMENT
Land and land improvements	118,690	118,682
Buildings	149,788	149,780
Furniture and fixtures	6,835	6,835
Shop and service equipment	20,815	20,822
Revenue equipment	1,016,102	1,021,208
Construction in progress	4,161	2,582
Property and equipment, gross	1,316,391	1,319,909
Less accumulated depreciation	474,940	434,558
Property and equipment, net	841,451	885,351
Goodwill	322,597	322,597
OTHER INTANGIBLES, NET	97,283	98,537
OTHER ASSETS	15,467	14,953
Deferred Income Taxes, Net	1,401	1,494
OPERATING LEASE RIGHT OF USE ASSETS	14,144	17,442
Assets	1,452,485	1,509,646
CURRENT LIABILITIES
Accounts payable and accrued liabilities	35,704	37,777
Compensation and benefits	29,739	28,492
Insurance accruals	24,153	21,507
Long-term debt and finance lease liabilities - current portion	8,986	9,303
Operating lease liabilities - current portion	7,740	9,259
Other accruals	21,146	17,138
Total current liabilities	127,468	123,476
LONG-TERM LIABILITIES
Income taxes payable	6,238	6,270
Long-term debt and finance lease liabilities less current portion	254,616	290,696
Operating lease liabilities less current portion	6,404	8,183
Deferred income taxes, net	179,850	189,121
Insurance accruals	29,119	26,640
Total long-term liabilities	476,227	520,910
COMMITMENTS AND CONTINGENCIES (Note 14)
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 2024 and 2023; outstanding 79,051 and 79,039 in 2024 and 2023, respectively	907	907
Additional paid-in capital	4,518	4,527
Retained earnings	1,043,404	1,060,094
Treasury stock, at cost; 11,638 and 11,650 shares in 2024 and 2023, respectively	(200,039)	(200,268)
Stockholders' Equity	848,790	865,260
Liabilities and Stockholders' Equity	$ 1,452,485	$ 1,509,646