Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current Assets:
Cash and cash equivalents	$ 1,293,173	$ 1,512,883
Accounts receivable, less allowance for credit loss of $5,903 at September 30, 2024 and $6,550 at December 31, 2023	2,176,959	1,532,599
Deferred contract costs	431,640	218,807
Other	181,273	170,907
Total current assets	4,083,045	3,435,196
Property and equipment, less accumulated depreciation and amortization of $624,562 at September 30, 2024 and $597,473 at December 31, 2023	468,594	479,225
Operating lease right-of-use assets	525,810	516,280
Goodwill	7,927	7,927
Deferred federal and state income taxes, net	69,789	63,690
Other assets, net	15,752	21,491
Total assets	5,170,917	4,523,809
Current Liabilities:
Accounts payable	1,240,174	860,856
Accrued liabilities, primarily salaries and related costs	470,723	447,336
Contract liabilities	532,289	280,909
Current portion of operating lease liabilities	106,832	99,749
Federal, state and foreign income taxes	25,728	15,562
Total current liabilities	2,375,746	1,704,412
Noncurrent portion of operating lease liabilities	436,001	427,984
Commitments and contingencies
Shareholders’ Equity:
Preferred stock, none issued	0	0
Common stock, par value $0.01 per share. Issued and outstanding: 139,971 at September 30, 2024 and 143,866 at December 31, 2023	1,400	1,439
Additional paid-in capital	4,307	0
Retained earnings	2,540,978	2,580,968
Accumulated other comprehensive loss	(189,978)	(192,057)
Total shareholders’ equity	2,356,707	2,390,350
Noncontrolling interest	2,463	1,063
Total equity	2,359,170	2,391,413
Total liabilities and equity	$ 5,170,917	$ 4,523,809