v3.23.2
INTRODUCTION AND BASIS OF PRESENTATION - Narrative (Detail) - Customer Concentration Risk - Blackrock Inc
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Revenue from Contract with Customer, Product and Service Benchmark    
Introduction And Basis Of Presentation [Line Items]    
Percentage of operating revenues accounted for by major customer 10.00% 10.80%
Revenue from Contract with Customer, Segment Benchmark | Index    
Introduction And Basis Of Presentation [Line Items]    
Percentage of operating revenues accounted for by major customer 16.90% 18.00%