Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 968,683	$ 927,107
Short-term investments	8,260	40,336
Accounts receivable, less allowance for doubtful accounts of $7,309 at September 30, 2015 and $7,119 at December 31, 2014	1,166,300	1,236,042
Deferred Federal and state income taxes	20,862	20,279
Other	71,355	65,486
Total current assets	2,235,460	2,289,250
Property and equipment, less accumulated depreciation and amortization of $379,996 at September 30, 2015 and $371,756 at December 31, 2014	527,893	538,415
Goodwill	7,927	7,927
Other assets, net	55,738	55,313
Total assets	2,827,018	2,890,905
Current Liabilities:
Accounts payable	718,555	770,238
Accrued expenses, primarily salaries and related costs	208,771	192,468
Federal, state and foreign income taxes	27,876	21,077
Total current liabilities	955,202	983,783
Deferred Federal and state income taxes	$ 29,624	$ 35,514
Commitments and contingencies
Shareholders' Equity:
Preferred stock, none issued	$ 0	$ 0
Common stock, par value $0.01 per share. Issued and outstanding 186,183,201 shares at September 30, 2015 and 191,655,690 shares at December 31, 2014	1,862	1,916
Additional paid-in capital	874	1,113
Retained earnings	1,910,388	1,903,196
Accumulated other comprehensive loss	(74,079)	(37,817)
Total shareholders’ equity	1,839,045	1,868,408
Noncontrolling interest	3,147	3,200
Total equity	1,842,192	1,871,608
Total liabilities and equity	$ 2,827,018	$ 2,890,905