v3.23.3
Commitments and Contingencies - Additional Information (Details)
£ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Jun. 29, 2023
USD ($)
Oct. 31, 2022
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Sep. 30, 2023
GBP (£)
Mar. 31, 2023
USD ($)
Mar. 31, 2023
GBP (£)
Dec. 31, 2022
USD ($)
Other Commitments [Line Items]                    
Unfunded Commitments for Capital Contributions     $ 2,592,000 $ 2,592,000            
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount     3,165,000 3,165,000            
Foreign Exchange Forward [Member]                    
Other Commitments [Line Items]                    
Derivative asset notional amount     36,675,000 36,675,000     £ 30,000 $ 36,903,000 £ 30,000  
Derivative, loss on derivative     (34,000) (34,000)            
Real Estate Capital Advisory [Member]                    
Other Commitments [Line Items]                    
Payments to Acquire Additional Interest in Subsidiaries     181,000 896,000 $ 27,710,000 $ 6,000,000        
Noncontrolling Interest, Purchase of Interest, Contingent Consideration, Liability, Current     2,447,000 2,447,000            
Noncontrolling Interest, Purchase of Interest, Contingent Consideration, Liability                   $ 6,119,000
Payable to Employees and Related Parties [Member] | Real Estate Capital Advisory [Member]                    
Other Commitments [Line Items]                    
Noncontrolling Interest, Purchase of Interest, Contingent Consideration, Liability, Current     $ 1,980,000 1,980,000            
Other Current Liabilities [Member] | Real Estate Capital Advisory [Member]                    
Other Commitments [Line Items]                    
Noncontrolling Interest, Purchase of Interest, Contingent Consideration, Liability, Current                   $ 1,083,000
Secured Line of Credit [Member] | PNC Bank [Member]                    
Other Commitments [Line Items]                    
Maximum Borrowing Capacity $ 30,000,000                  
Short-Term Borrowings       0            
Secured Line of Credit [Member] | PNC Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate                    
Other Commitments [Line Items]                    
Debt Instrument, Basis Spread on Variable Rate 1.61%                  
Unsecured Line of Credit [Member] | PNC Bank [Member]                    
Other Commitments [Line Items]                    
Maximum Borrowing Capacity $ 55,000,000                  
Short-Term Borrowings       0            
Unsecured Line of Credit [Member] | PNC Bank [Member] | EGL [Member]                    
Other Commitments [Line Items]                    
Maximum Borrowing Capacity   $ 75,000,000                
Short-Term Borrowings       $ 0            
Unsecured Line of Credit [Member] | PNC Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate                    
Other Commitments [Line Items]                    
Debt Instrument, Basis Spread on Variable Rate 1.91%                  
Unsecured Line of Credit [Member] | PNC Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | EGL [Member]                    
Other Commitments [Line Items]                    
Debt Instrument, Basis Spread on Variable Rate   1.91%