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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
CURRENT ASSETS    
Cash and cash equivalents $ 190,186 $ 120,772
Short-term investments 106,806 56,401
Accounts receivable, less allowances (2018 – $7,380; 2017 – $7,657) 297,051 279,074
Other accounts receivable, less allowances (2018 – $806; 2017 – $921) 19,146 19,491
Prepaid expenses 25,304 22,183
Prepaid and refundable income taxes 1,726 12,296
Other 9,007 12,132
TOTAL CURRENT ASSETS 649,226 522,349
PROPERTY, PLANT AND EQUIPMENT    
Land and structures 339,640 344,224
Revenue equipment 858,251 793,523
Service, office, and other equipment 199,230 179,950
Software 138,517 129,589
Leasehold improvements 9,365 8,888
TOTAL PROPERTY, PLANT AND EQUIPMENT, GROSS 1,545,003 1,456,174
Less allowances for depreciation and amortization 913,815 865,010
PROPERTY, PLANT AND EQUIPMENT, net 631,188 591,164
Balance at the beginning of the period 108,320 108,320
INTANGIBLE ASSETS, net 68,949 73,469
DEFERRED INCOME TAXES 7,468 5,965
OTHER LONG-TERM ASSETS 74,080 64,374
TOTAL ASSETS 1,539,231 1,365,641
CURRENT LIABILITIES    
Accounts payable 143,785 129,099
Income taxes payable 1,688 324
Accrued expenses 243,111 210,484
Current portion of long-term debt 54,075 61,930
Current portion of pension and postretirement liabilities 8,659 753
TOTAL CURRENT LIABILITIES 451,318 402,590
LONG-TERM DEBT, less current portion 237,600 206,989
PENSION AND POSTRETIREMENT LIABILITIES, less current portion 31,504 39,827
OTHER LONG-TERM LIABILITIES 44,686 15,616
DEFERRED INCOME TAXES 56,441 49,157
STOCKHOLDERS' EQUITY    
Common stock, $0.01 par value, authorized 70,000,000 shares; issued 2018: 28,684,779 shares, 2017: 28,495,628 shares 287 285
Additional paid-in capital 325,712 319,436
Retained earnings 501,389 438,379
Treasury stock, at cost, 2018: 3,097,634 shares; 2017: 2,851,578 shares (95,468) (86,064)
Accumulated other comprehensive loss (14,238) (20,574)
TOTAL STOCKHOLDERS' EQUITY 717,682 651,462
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 1,539,231 $ 1,365,641