CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Allowance for doubtful accounts receivables	$ 30,086	$ 28,503
Property, accumulated amortization and depreciation	419,680	414,547
Property, net	227,539	232,516
Other intangible assets, accumulated amortization	$ 67,696	$ 67,681
Preferred stock par value (in USD per share)	$ 0.01	$ 0.01
Preferred stock shares authorized (in shares)	15,000,000	15,000,000
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	112,766,091	112,766,091
Common stock held by subsidiaries (in shares)	22,248,005	25,340,287
Series A Preferred Stock
Preferred stock, shares issued (in shares)	0	0
Preferred stock shares outstanding (in shares)	0	0
Series B Preferred Stock
Preferred stock, shares issued (in shares)	0	0
Preferred stock shares outstanding (in shares)	0	0
Office Building
Property, net	$ 71,343	$ 72,921