v3.26.1
Significant Accounting Policies (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
shares
Apr. 07, 2000
shares
Accounting Policies [Abstract]          
Entity Number of Employees 0        
Demutualization by Insurance Entity, Securities Issued, Quantity of Shares | shares         494,466,664
Trust Interests Outstanding | shares 105,915,235 111,587,813 117,556,699 123,606,156  
Trust Termination [Abstract]          
Percentage Of Outstanding Shares Of Common Stock Owned By The Trust, Termination Required 10.00%        
Percentage Of Outstanding Shares Of Common Stock Owned By The Trust, Termination Eligible 25.00%        
Percentage Of Outstanding Shares Of Common Stock Owned By The Trust 16.20%        
MetLife, Inc. [Member]          
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]          
Common Stock, Par or Stated Value Per Share | $ / shares $ 0.01        
Operating Expenses [Abstract]          
Trustee Fees $ 50        
Out-of-pocket expenses 42 $ 34 $ 21    
Audit Fees $ 60 $ 60 $ 59    
Class of Stock Disclosures [Abstract]          
Repurchase Shares | shares 35,295,854 43,955,023 50,269,483    
Treasury Stock, Value, Acquired, Cost Method $ 2,900,000 $ 3,200,000 $ 3,100,000