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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
CURRENT ASSETS    
Cash and cash equivalents $ 120,772 $ 114,280
Short-term investments 56,401 56,838
Restricted cash   962
Accounts receivable, less allowances (2017 – $7,657; 2016 – $5,437) 279,074 260,643
Other accounts receivable, less allowances (2017 – $921; 2016 – $849) 19,491 22,041
Prepaid expenses 22,183 22,124
Prepaid and refundable income taxes 12,296 9,909
Other 12,132 4,300
TOTAL CURRENT ASSETS 522,349 491,097
PROPERTY, PLANT AND EQUIPMENT    
Land and structures 344,224 324,086
Revenue equipment 793,523 743,860
Service, office, and other equipment 179,950 154,119
Software 129,589 120,877
Leasehold improvements 8,888 8,758
TOTAL PROPERTY, PLANT AND EQUIPMENT, GROSS 1,456,174 1,351,700
Less allowances for depreciation and amortization 865,010 819,174
PROPERTY, PLANT AND EQUIPMENT, net 591,164 532,526
GOODWILL 108,320 108,875
INTANGIBLE ASSETS, net 73,469 80,507
DEFERRED INCOME TAXES 5,965 2,978
OTHER LONG-TERM ASSETS 64,374 66,095
TOTAL ASSETS 1,365,641 1,282,078
CURRENT LIABILITIES    
Accounts payable 129,099 133,301
Income taxes payable 324  
Accrued expenses 211,237 198,731
Current portion of long-term debt 61,930 64,143
TOTAL CURRENT LIABILITIES 402,590 396,175
LONG-TERM DEBT, less current portion 206,989 179,530
PENSION AND POSTRETIREMENT LIABILITIES 39,827 35,848
OTHER LONG-TERM LIABILITIES 15,616 16,790
DEFERRED INCOME TAXES 49,157 54,680
STOCKHOLDERS' EQUITY    
Common stock, $0.01 par value, authorized 70,000,000 shares; issued 2017: 28,495,628 shares; 2016: 28,174,424 shares 285 282
Additional paid-in capital 319,436 315,318
Retained earnings 438,379 386,917
Treasury stock, at cost, 2017: 2,851,578 shares; 2016: 2,565,399 shares (86,064) (80,045)
Accumulated other comprehensive loss (20,574) (23,417)
TOTAL STOCKHOLDERS' EQUITY 651,462 599,055
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 1,365,641 $ 1,282,078