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10-Q LONG-TERM DEBT - LMATT Growth and Income Series 1.2026, Inc. Market-Indexed Notes (Details) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Sep. 16, 2022
Debt Instrument [Line Items]        
Assets $ 376,719,400 $ 331,826,067 $ 59,094,847  
Fair value        
Debt Instrument [Line Items]        
Long-term debt, gross   141,652,424    
LMATT Growth & Income Series 1.2026, Inc. | Market-indexed notes        
Debt Instrument [Line Items]        
Face amount       $ 400,000
Upside performance participation cap       140.00%
Market downturn protection percentage       10.00%
Note reduction ratio for losses below threshold       100.00%
Dividend percentage       4.00%
LMATT Growth & Income Series 1.2026, Inc. | Market-indexed notes | Asset Pledged as Collateral        
Debt Instrument [Line Items]        
Assets 515,297 374,458    
LMATT Growth & Income Series 1.2026, Inc. | Market-indexed notes | Fair value        
Debt Instrument [Line Items]        
Long-term debt, gross $ 631,377 $ 569,862 $ 400,000  
LMATT Growth & Income Series 1.2026, Inc.        
Debt Instrument [Line Items]        
Ownership percentage       100.00%