v3.26.1
SEGMENT AND GEOGRAPHICAL INFORMATION - Information by Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Segment Reporting [Line Items]      
Revenues $ 2,617,516 $ 2,389,416 $ 1,914,404
Employee compensation and benefits 1,609,770 1,469,491 1,177,355
Corporate expenses 2,090,497 1,886,849 1,541,170
Other (income) expense, net (35,246) (28,768) (17,305)
Income before provision for income taxes 562,265 531,335 390,539
Assets 4,308,955 3,819,708  
Operating Segments      
Segment Reporting [Line Items]      
Segment profit 853,915 772,312 571,071
Assets 1,878,849 1,698,951  
Operating Segments | Corporate Finance      
Segment Reporting [Line Items]      
Revenues 1,744,634 1,526,756 1,106,826
Employee compensation and benefits 965,291 871,313 638,072
Non-compensation expense 198,103 181,020 166,221
Segment profit 581,240 474,423 302,533
Assets 1,476,768 1,312,291  
Operating Segments | Financial Restructuring      
Segment Reporting [Line Items]      
Revenues 528,655 544,478 521,984
Employee compensation and benefits 299,614 289,979 282,431
Non-compensation expense 49,948 45,193 45,437
Segment profit 179,093 209,306 194,116
Assets 179,073 179,498  
Operating Segments | Financial and Valuation Advisory      
Segment Reporting [Line Items]      
Revenues 344,227 318,182 285,594
Employee compensation and benefits 188,526 175,412 155,502
Non-compensation expense 62,119 54,187 55,670
Segment profit 93,582 88,583 74,422
Assets 223,008 207,162  
Corporate      
Segment Reporting [Line Items]      
Corporate expenses 326,896 269,745 $ 197,837
Assets $ 2,430,106 $ 2,120,757