Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 101,712,000	$ 8,854,000
Receivables—net	382,855,000	398,976,000
Prepaid expenses	27,868,000	20,030,000
Taxes receivable—current	27,821,000	21,996,000
Other current assets	6,663,000	4,878,000
Total Current Assets	546,919,000	454,734,000
Goodwill	1,191,270,000	1,191,259,000
Other intangible assets—net	180,600,000	196,778,000
Property and equipment—net	116,548,000	85,631,000
Operating lease right of use assets	99,784,000	117,728,000
Employee supplemental savings plan assets	34,682,000	36,777,000
Investments	11,549,000	11,550,000
Other assets	13,096,000	13,457,000
TOTAL ASSETS	2,194,448,000	2,107,914,000
LIABILITIES
Accounts payable and accrued expenses	170,500,000	146,016,000
Accrued salaries and related expenses	127,110,000	97,298,000
Contract liabilities	40,058,000	27,620,000
Operating lease obligations—current	30,235,000	29,047,000
Total Current Liabilities	367,903,000	299,981,000
Deferred income taxes	142,909,000	131,782,000
Operating lease obligations—long term	86,317,000	103,148,000
Accrued retirement	33,224,000	35,552,000
Long term debt	0	36,500,000
Other long-term liabilities	10,379,000	10,309,000
TOTAL LIABILITIES	640,732,000	617,272,000
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Additional paid-in capital	539,286,000	525,851,000
Treasury stock	(9,158,000)	(9,158,000)
Retained earnings	1,023,448,000	973,767,000
Accumulated other comprehensive loss	(266,000)	(222,000)
TOTAL STOCKHOLDERS' EQUITY	1,553,716,000	1,490,642,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	2,194,448,000	2,107,914,000
Class A common stock
STOCKHOLDERS' EQUITY
Common stock	274,000	272,000
TOTAL STOCKHOLDERS' EQUITY	274,000	272,000
Class B common stock
STOCKHOLDERS' EQUITY
Common stock	132,000	132,000
TOTAL STOCKHOLDERS' EQUITY	$ 132,000	$ 132,000