Shareholders' Equity - Summary of Dividend Rates of Perpetual Preferred Stock Issued and Outstanding (Detail)								3 Months Ended
	Nov. 10, 2034	Feb. 10, 2030	May 10, 2029	Feb. 10, 2029	Nov. 10, 2026	Aug. 10, 2026	May 10, 2026	Mar. 31, 2026
Series A Preferred Stock
Class of Stock [Line Items]
Basis spread on variable dividend rate								1.01161%
Dividend rate, floor								3.75%
Series C Preferred Stock
Class of Stock [Line Items]
Basis spread on variable dividend rate								1.01161%
Dividend rate, floor								4.00%
Series D Preferred Stock
Class of Stock [Line Items]
Basis spread on variable dividend rate								0.93161%
Dividend rate, floor								4.00%
Series E Preferred Stock
Class of Stock [Line Items]
Basis spread on variable dividend rate								1.02911%
Dividend rate, floor								4.00%
Series F Preferred Stock
Class of Stock [Line Items]
Basis spread on variable dividend rate								1.03161%
Dividend rate, floor								4.00%
Series O Preferred Stock
Class of Stock [Line Items]
Dividend rate								5.30%
Series O Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate					4.09561%
Series T Preferred Stock
Class of Stock [Line Items]
Dividend rate								3.80%
Series T Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate							2.969%
Series U Preferred Stock
Class of Stock [Line Items]
Dividend rate								3.65%
Series U Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate						2.915%
Series V Preferred Stock
Class of Stock [Line Items]
Dividend rate								4.125%
Series V Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate					2.949%
Series W Preferred Stock
Class of Stock [Line Items]
Dividend rate								7.50%
Series W Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate				3.156%
Series X Preferred Stock
Class of Stock [Line Items]
Dividend rate								7.50%
Series X Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate			2.809%
Series Y Preferred Stock
Class of Stock [Line Items]
Dividend rate								6.125%
Series Y Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate	2.40%
Series Z Preferred Stock
Class of Stock [Line Items]
Dividend rate								6.85%
Series Z Preferred Stock \| Forecast
Class of Stock [Line Items]
Basis spread on variable dividend rate		2.461%