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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
CURRENT ASSETS    
Cash and cash equivalents $ 76,620 $ 303,954
Short-term investments 48,339 65,408
Accounts receivable, less allowances (2021 - $13,226; 2020 - $7,851) 582,344 320,870
Other accounts receivable, less allowances (2021 - $690; 2020 - $660) 13,094 14,343
Prepaid expenses 40,104 37,774
Prepaid and refundable income taxes 9,654 11,397
Other 5,898 4,422
TOTAL CURRENT ASSETS 776,053 758,168
PROPERTY, PLANT AND EQUIPMENT    
Land and structures 350,694 342,178
Revenue equipment 980,283 916,760
Service, office, and other equipment 251,085 233,810
Software 175,989 163,193
Leasehold improvements 16,931 15,156
TOTAL PROPERTY, PLANT AND EQUIPMENT, Gross 1,774,982 1,671,097
Less allowances for depreciation and amortization 1,079,061 992,407
PROPERTY, PLANT AND EQUIPMENT, net 695,921 678,690
GOODWILL 300,337 88,320
INTANGIBLE ASSETS, net 126,580 54,981
OPERATING RIGHT-OF-USE ASSETS 106,686 115,195
DEFERRED INCOME TAXES 5,470 6,158
OTHER LONG-TERM ASSETS 101,629 77,496
TOTAL ASSETS 2,112,676 1,779,008
CURRENT LIABILITIES    
Accounts payable 311,401 170,898
Income taxes payable 12,087 316
Accrued expenses 305,851 246,746
Current portion of long-term debt 50,615 67,105
Current portion of operating lease liabilities 22,740 21,482
TOTAL CURRENT LIABILITIES 702,694 506,547
LONG-TERM DEBT, less current portion 174,917 217,119
OPERATING LEASE LIABILITIES, less current portion 88,835 97,839
POSTRETIREMENT LIABILITIES, less current portion 16,733 18,555
OTHER LONG-TERM LIABILITIES 135,537 37,948
DEFERRED INCOME TAXES 64,893 72,407
STOCKHOLDERS' EQUITY    
Common stock, $0.01 par value, authorized 70,000,000 shares; issued 2021: 29,359,597 shares, 2020: 29,045,309 shares 294 290
Additional paid-in capital 318,033 342,354
Retained earnings 801,314 595,932
Treasury stock, at cost, 2021: 4,492,514 shares; 2020: 3,656,938 shares (194,273) (111,173)
Accumulated other comprehensive income 3,699 1,190
TOTAL STOCKHOLDERS' EQUITY 929,067 828,593
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 2,112,676 $ 1,779,008