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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current Assets:    
Cash and cash equivalents $ 184,620 $ 164,798
Accounts receivable, net of allowances of $16,546 and $9,398 2,716,083 2,747,911
Contract assets 453,832 601,268
Inventories 50,472 55,719
Prepaid expenses and other current assets 183,382 261,290
Total current assets 3,588,389 3,830,986
Property and equipment, net of accumulated depreciation of $1,372,132 and $1,250,197 1,560,656 1,386,654
Operating lease right-of-use assets 256,845 284,369
Other assets, net 435,713 393,264
Other intangible assets, net of accumulated amortization of $517,574 and $437,886 435,655 413,734
Goodwill 2,121,014 2,022,675
Total assets 8,398,272 8,331,682
Current Liabilities:    
Current maturities of long-term debt and short-term debt 14,764 74,869
Current portion of operating lease liabilities 85,134 92,475
Accounts payable and accrued expenses 1,509,794 1,489,559
Contract liabilities 528,864 606,146
Total current liabilities 2,138,556 2,263,049
Long-term debt, net of current maturities 1,174,294 1,292,195
Operating lease liabilities, net of current portion 178,822 196,521
Deferred income taxes 166,407 214,779
Insurance and other non-current liabilities 391,221 311,307
Total liabilities 4,049,300 4,277,851
Commitments and Contingencies
Equity:    
Additional paid-in capital 2,170,026 2,024,610
Retained earnings 3,264,967 2,854,271
Accumulated other comprehensive loss (232,997) (241,818)
Treasury stock, 24,410,601 and 17,091,222 common shares (857,817) (586,773)
Total stockholders’ equity 4,344,181 4,050,292
Non-controlling interests 4,791 3,539
Total equity 4,348,972 4,053,831
Total liabilities and equity 8,398,272 8,331,682
Common Stock    
Equity:    
Common stock 2 2
Exchangeable Shares    
Equity:    
Common stock $ 0 $ 0