Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Assets:
Cash and cash equivalents	$ 1,033,444	$ 974,435
Accounts receivable, less allowance for doubtful accounts of $11,217 at September 30, 2017 and $9,247 at December 31, 2016	1,349,854	1,190,130
Other	135,623	54,014
Total current assets	2,518,921	2,218,579
Property and equipment, less accumulated depreciation and amortization of $413,219 at September 30, 2017 and $406,652 at December 31, 2016	513,070	536,572
Goodwill	7,927	7,927
Other assets, net	28,963	27,793
Total assets	3,068,881	2,790,871
Current Liabilities:
Accounts payable	836,055	726,571
Accrued expenses, primarily salaries and related costs	216,146	185,502
Federal, state and foreign income taxes	23,853	17,858
Total current liabilities	1,076,054	929,931
Deferred Federal and state income taxes	11,746	13,727
Commitments and contingencies
Shareholders' Equity:
Preferred stock, none issued	0	0
Common stock, par value $0.01 per share. Issued and outstanding 177,559 shares at September 30, 2017 and 179,857 shares at December 31, 2016	1,776	1,799
Additional paid-in capital	1,464	2,642
Retained earnings	2,053,723	1,944,789
Accumulated other comprehensive loss	(78,960)	(104,592)
Total shareholders’ equity	1,978,003	1,844,638
Noncontrolling interest	3,078	2,575
Total equity	1,981,081	1,847,213
Total liabilities and equity	$ 3,068,881	$ 2,790,871