Shareholders' Equity - Schedule of Common and Preferred Stock (Details) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	10,000,000	10,000,000
Common stock, shares issued (in shares)	5,050,000	5,050,000
Common stock, shares outstanding (in shares)	5,050,000	5,050,000
Preferred stock, shares authorized (in shares)	250,000,000	250,000,000
Liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Fixed-to-Floating Rate Cumulative Perpetual Preferred Stock, Series A (Series A Preferred Stock)
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	1,000,000	1,000,000
Preferred stock, shares outstanding (in shares)	1,000,000	1,000,000
Fixed-to-Floating Rate Cumulative Perpetual Preferred Stock, Series B (Series B Preferred Stock)
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	500,000	500,000
Preferred stock, shares outstanding (in shares)	500,000	500,000
Fixed-Rate Reset Cumulative Perpetual Preferred Stock, Series C (Series C Preferred Stock)
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	500,000	500,000
Preferred stock, shares outstanding (in shares)	500,000	500,000