Quarterly report pursuant to Section 13 or 15(d)

Related-Party Transactions - Narrative (Detail)

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Related-Party Transactions - Narrative (Detail) - USD ($)
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Related Party Transaction [Line Items]      
Selling, general and administrative $ 68,916,000 $ 72,219,000  
Total revenue 129,104,000 154,792,000  
Cost of services 76,868,000 95,427,000  
Operating lease right-of-use assets, net 92,929,000   $ 90,058,000
Other assets, current 16,014,000   16,203,000
Accounts payable and accrued expenses 9,359,000   8,126,000
MMC      
Related Party Transaction [Line Items]      
Operating lease cost 291,000 297,000  
Operating lease right-of-use assets, net 7,550,000   7,800,000
Operating lease liability 8,091,000   8,300,000
Related Party      
Related Party Transaction [Line Items]      
Other assets, current 49,000   63,000
Related Party | MMC      
Related Party Transaction [Line Items]      
Total revenue 730,000 441,000  
Accounts payable and accrued expenses 2,000   $ 10,000
Transition Services Agreement | Related Party | MMC      
Related Party Transaction [Line Items]      
Selling, general and administrative 10,600 25,000  
Brokerage And Financing Services | Related Party | MMC      
Related Party Transaction [Line Items]      
Cost of services $ 442,000 $ 264,000  
Chairman And Founder      
Related Party Transaction [Line Items]      
Beneficial ownership percentage 39.00%