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Condensed Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 207,624 $ 186,312
Short-term investments 24,807 49,355
Customer receivables, less allowances of $11,069 and $10,689, respectively 564,490 578,648
Income taxes receivable   12,738
Other receivables 15,389 13,743
Prepaid expenses and other current assets 84,640 92,944
Total current assets 896,950 933,740
Property and equipment:    
Revenue equipment 2,556,832 2,501,995
Land and structures 2,834,205 2,750,100
Other fixed assets 605,301 550,442
Leasehold improvements 13,598 13,516
Total property and equipment 6,009,936 5,816,053
Accumulated depreciation (2,168,472) (2,128,985)
Net property and equipment 3,841,464 3,687,068
Other assets 218,674 217,802
Total assets 4,957,088 4,838,610
Current liabilities:    
Accounts payable 119,773 106,275
Compensation and benefits 220,539 288,278
Claims and insurance accruals 61,714 63,307
Other accrued liabilities 64,626 51,933
Income taxes payable 82,868  
Current maturities of long-term debt 20,000 20,000
Total current liabilities 569,520 529,793
Long-term liabilities:    
Long-term debt 79,967 79,963
Other non-current liabilities 250,587 265,422
Deferred income taxes 310,515 310,515
Total long-term liabilities 641,069 655,900
Total liabilities 1,210,589 1,185,693
Commitments and contingent liabilities
Shareholders' equity:    
Common stock - $0.10 par value, 280,000,000 shares authorized, 109,830,927 and 110,222,819 shares outstanding at March 31, 2023 and December 31, 2022, respectively 10,983 11,022
Capital in excess of par value 240,024 244,590
Retained earnings 3,495,492 3,397,305
Total shareholders’ equity 3,746,499 3,652,917
Total liabilities and shareholders’ equity $ 4,957,088 $ 4,838,610