CAPITAL STOCK - Schedule of Preferred Stock (Details) - USD ($) $ in Thousands			3 Months Ended
	Dec. 31, 2024		Mar. 31, 2025
Class of Stock [Line Items]
Shares Authorized (in shares)	63,500,000		63,500,000
Shares Issued (in shares)	63,500,000		63,500,000
Shares Outstanding (in shares)	63,500,000		63,500,000
Carrying Value	$ 1,536,569	[1]	$ 1,536,569
Series F
Class of Stock [Line Items]
Shares Authorized (in shares)	28,800,000		28,800,000
Shares Issued (in shares)	28,800,000		28,800,000
Shares Outstanding (in shares)	28,800,000		28,800,000
Carrying Value	$ 696,910		$ 696,910
Contractual Rate	6.95%		6.95%
Floating Annual Rate			4.993%
Series G
Class of Stock [Line Items]
Shares Authorized (in shares)	17,000,000		17,000,000
Shares Issued (in shares)	17,000,000		17,000,000
Shares Outstanding (in shares)	17,000,000		17,000,000
Carrying Value	$ 411,335		$ 411,335
Contractual Rate	6.50%		6.50%
Floating Annual Rate			4.172%
Series I
Class of Stock [Line Items]
Shares Authorized (in shares)	17,700,000		17,700,000
Shares Issued (in shares)	17,700,000		17,700,000
Shares Outstanding (in shares)	17,700,000		17,700,000
Carrying Value	$ 428,324		$ 428,324
Contractual Rate	6.75%		6.75%
Floating Annual Rate			4.989%
Redeemable Preferred Stock
Class of Stock [Line Items]
Floating Annual Rate			0.26161%

[1] (1)Derived from the audited consolidated financial statements at December 31, 2024.