Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 1,180,455	$ 1,230,491
Accounts receivable, less allowance for credit loss of $5,347 at June 30, 2020 and $11,143 at December 31, 2019	1,460,324	1,315,091
Deferred contract costs	147,932	131,783
Other	69,560	92,558
Total current assets	2,858,271	2,769,923
Property and equipment, less accumulated depreciation and amortization of $494,773 at June 30, 2020 and $478,906 at December 31, 2019	497,762	499,344
Operating lease right-of-use assets	424,516	390,035
Goodwill	7,927	7,927
Deferred federal and state income taxes, net	5,300	8,034
Other assets, net	16,401	16,621
Total assets	3,810,177	3,691,884
Current Liabilities:
Accounts payable	755,971	735,695
Accrued expenses, primarily salaries and related costs	257,923	189,446
Contract liabilities	172,148	154,183
Current portion of operating lease liabilities	69,740	65,367
Federal, state and foreign income taxes	32,287	23,627
Total current liabilities	1,288,069	1,168,318
Noncurrent portion of operating lease liabilities	360,510	326,347
Commitments and contingencies
Shareholders’ Equity:
Preferred stock, none issued	0	0
Common stock, par value $0.01 per share. Issued and outstanding: 166,816 shares at June 30, 2020 and 169,622 shares at December 31, 2019	1,668	1,696
Additional paid-in capital	12,221	3,203
Retained earnings	2,298,387	2,321,316
Accumulated other comprehensive loss	(153,158)	(131,187)
Total shareholders’ equity	2,159,118	2,195,028
Noncontrolling interest	2,480	2,191
Total equity	2,161,598	2,197,219
Total liabilities and equity	$ 3,810,177	$ 3,691,884