Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 1,247,652	$ 1,260,842
Short-term investments	26,337	139
Accounts receivable, less allowance for doubtful accounts of $8,695 in 2013 and $8,482 in 2012	1,073,500	1,031,376
Deferred Federal and state income taxes	18,396	12,102
Other	49,384	53,140
Total current assets	2,415,269	2,357,599
Property and equipment, net	563,064	556,204
Goodwill	7,927	7,927
Other assets, net	28,552	32,395
Total assets	3,014,812	2,954,125
Current Liabilities:
Accounts payable	648,156	641,593
Accrued expenses, primarily salaries and related costs	200,301	178,995
Federal, state and foreign income taxes	21,743	21,970
Total current liabilities	870,200	842,558
Deferred Federal and state income taxes	58,281	78,997
Commitments and contingencies
Shareholders’ Equity:
Preferred stock, par value $.01 per share, authorized 2,000,000 shares; none issued	0	0
Common stock, par value $.01 per share, authorized 640,000,000 shares; issued and outstanding 202,553,220 shares at December 31, 2013 and 206,392,013 shares at December 31, 2012	2,025	2,064
Additional paid-in capital	1,647	1,283
Retained earnings	2,087,376	2,018,618
Accumulated other comprehensive (loss) income	(6,265)	5,734
Total shareholders’ equity	2,084,783	2,027,699
Noncontrolling interest	1,548	4,871
Total equity	2,086,331	2,032,570
Total liabilities and equity	$ 3,014,812	$ 2,954,125