Shareholders' Equity - Summary of Dividend Rates of Perpetual Preferred Stock Issued and Outstanding (Detail)							6 Months Ended
	Nov. 10, 2034	Feb. 10, 2030	May 10, 2029	Feb. 10, 2029	Nov. 10, 2026	Aug. 10, 2026	Jun. 30, 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 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%