Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 1,639,428	$ 2,034,131
Accounts Receivable, less allowance for credit loss of $5,724 at September 30, 2023 and $9,466 at December 31, 2022	1,458,983	2,107,645
Deferred contract costs	223,768	257,545
Other	189,737	118,696
Total current assets	3,511,916	4,518,017
Property and equipment, less accumulated depreciation and amortization of $579,961 at September 30, 2023 and $567,758 at December 31, 2022	480,924	501,916
Operating lease right-of-use assets	506,981	507,503
Goodwill	7,927	7,927
Deferred federal and state income taxes, net	50,796	37,449
Other assets, net	19,577	17,622
Total assets	4,578,121	5,590,434
Current Liabilities:
Accounts payable	846,461	1,108,996
Accrued liabilities, primarily salaries and related costs	423,685	479,262
Contract liabilities	283,797	323,101
Current portion of operating lease liabilities	99,876	95,621
Federal, state and foreign income taxes	13,226	47,075
Total current liabilities	1,667,045	2,054,055
Noncurrent portion of operating lease liabilities	419,602	422,844
Commitments and contingencies
Shareholders’ Equity:
Preferred stock, none issued	0	0
Common stock, par value $0.01 per share. Issued and outstanding: 145,386 shares at September 30, 2023 and 154,313 shares at December 31, 2022	1,454	1,543
Additional paid-in capital	0	139
Retained earnings	2,701,386	3,310,892
Accumulated other comprehensive loss	(213,060)	(202,553)
Total shareholders’ equity	2,489,780	3,110,021
Noncontrolling interest	1,694	3,514
Total equity	2,491,474	3,113,535
Total liabilities and equity	$ 4,578,121	$ 5,590,434