Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets
Cash and cash equivalents	$ 129,752	$ 178,350
Accounts receivable less allowances	215,570	171,163
Inventories	8,238	8,193
Prepaid income taxes	7,106	11,068
Prepaid expenses	34,577	25,974
Total current assets	395,243	394,748
Investments of deferred compensation plans held in trust	136,021	130,960
Properties and equipment, at cost, less accumulated depreciation of $392,384 (2024- $382,001)	203,939	200,837
Lease right of use asset	128,362	127,323
Identifiable intangible assets less accumulated amortization of $66,861 (2024 - $59,147)	84,930	92,206
Goodwill	666,987	666,744
Other assets	8,137	55,757
Total Assets	1,623,619	1,668,575
Current liabilities
Accounts payable	48,095	44,146
Accrued insurance	65,733	56,703
Income taxes	1,469	7,593
Accrued compensation	79,668	92,073
Short-term lease liability	42,013	42,306
Other current liabilities	55,063	42,874
Total current liabilities	292,041	285,695
Deferred income taxes	9,687	25,945
Deferred compensation liabilities	132,380	126,035
Long-term lease liability	99,461	98,538
Other liabilities	13,367	13,369
Total Liabilities	546,936	549,582
Commitments and contingencies (Note 10)
STOCKHOLDERS' EQUITY
Capital stock - authorized 80,000,000 shares $1 par; issued 37,592,974 shares (2024 - 37,422,348 shares)	37,593	37,422
Paid-in capital	1,581,067	1,484,176
Retained earnings	2,887,123	2,721,832
Treasury stock - 23,484,059 shares (2024 - 22,865,842 shares)	(3,431,475)	(3,126,660)
Deferred compensation payable in Company stock	2,375	2,223
Total Stockholders' Equity	1,076,683	1,118,993
Total Liabilities and Stockholders' Equity	$ 1,623,619	$ 1,668,575