Capital Stock - Preferred Stock (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares	Mar. 30, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Oct. 30, 2021 USD ($) shares
Class of Stock [Line Items]
Dividends on preferred stock	$ 22,787	$ 18,438	$ 63,975	$ 55,313
Tenor spread adjustment	0.0026161		0.0026161
Series A Preferred Stock
Class of Stock [Line Items]
Dividends on preferred stock	$ 3,000	$ 3,000	$ 9,000	$ 9,000
Preferred stock dividends declared (in dollars per share) | $ / shares	$ 0.50	$ 0.50	$ 1.50	$ 1.50
Preferred stock, shares outstanding (in shares) | shares	5,800,000		5,800,000			5,800,000	5,800,000
Preferred Stock, liquidation preference	$ 145,000		$ 145,000			$ 145,000	$ 145,000
Series B Preferred Stock
Class of Stock [Line Items]
Dividends on preferred stock	$ 9,000	$ 7,000	$ 25,000	$ 20,000
Preferred stock dividends declared (in dollars per share) | $ / shares	$ 0.71	$ 0.50	$ 1.92	$ 1.50
Preferred stock, shares outstanding (in shares) | shares	13,000,000		13,000,000		13,000,000	13,000,000
Preferred Stock, liquidation preference	$ 325,000		$ 325,000		$ 325,000	$ 325,000
Series C Preferred Stock
Class of Stock [Line Items]
Dividends on preferred stock	$ 5,000	$ 5,000	$ 15,000	$ 15,000
Preferred stock dividends declared (in dollars per share) | $ / shares	$ 0.48	$ 0.48	$ 1.45	$ 1.45
Preferred stock, shares outstanding (in shares) | shares	10,400,000		10,400,000			10,400,000
Preferred Stock, liquidation preference	$ 260,000		$ 260,000			$ 260,000
Series D Preferred Stock
Class of Stock [Line Items]
Dividends on preferred stock	$ 6,000	$ 4,000	$ 15,000	$ 12,000
Preferred stock dividends declared (in dollars per share) | $ / shares	$ 0.70	$ 0.50	$ 1.90	$ 1.50
Preferred stock, shares outstanding (in shares) | shares	8,000,000		8,000,000		8,000,000	8,000,000
Preferred Stock, liquidation preference	$ 200,000		$ 200,000		$ 200,000	$ 200,000