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Financing - Schedule of Interest Expense Incurred Convertible Notes and Senior Unsecured Notes (Details) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Senior Notes    
Schedule of Repurchase Agreement [Line Items]    
Coupon interest expense $ 9,453,000 $ 6,926,000
Amortization expense 737,000 504,000
Total interest expense 10,190,000 7,430,000
Convertible Debt | Western Asset Mortgage Capital Corporation | Convertible Senior Unsecured Notes Due in September 2024    
Schedule of Repurchase Agreement [Line Items]    
Coupon interest expense   3,805,000
Amortization expense   912,000
Total interest expense $ 0 $ 4,717,000