Shareholders' Equity - Additional Information (Detail) - $ / shares		7 Months Ended	12 Months Ended
	Aug. 01, 2024	Jul. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Preferred stock, shares authorized (in shares)			20,000,000
Preferred stock, par value (in USD per share)			$ 1.00
Series E Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend rate (as a percent)			0.00%
Series F Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend rate (as a percent)			5.125%	5.125%
Preferred stock. dividend rate spread (as a percent)			3.78%	3.78%
Series G Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend rate (as a percent)	7.304%	5.00%	7.304%	5.00%
Preferred stock. dividend rate spread (as a percent)			3.174%	3.174%
Series H Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend rate (as a percent)			5.625%	5.625%	5.625%
Preferred stock. dividend rate spread (as a percent)			4.28%	4.28%
Series I Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend rate (as a percent)			3.50%	3.50%
Preferred stock. dividend rate spread (as a percent)			2.679%	2.679%
Series J Preferred Stock
Class of Stock [Line Items]
Preferred stock dividend rate (as a percent)			7.50%	7.50%