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Fixed Assets, Net (Tables)
3 Months Ended
Mar. 31, 2026
Property, Plant and Equipment [Abstract]  
Schedule of Components of Fixed Assets, Net
Fixed assets, net consisted of the following (in thousands):
March 31, 2026December 31, 2025
Leasehold improvements, furniture and fixtures, and other fixed assets$267,662 $266,585 
Software, including software development costs78,252 76,567 
Computer and communications equipment47,147 45,117 
Total, cost393,061 388,269 
Accumulated depreciation and amortization(238,637)(231,779)
Total, net$154,424 $156,490