Common and Preferred Stock - ATM Programs (Details) - USD ($) $ in Thousands	3 Months Ended			4 Months Ended	12 Months Ended	16 Months Ended	18 Months Ended		19 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2023	Mar. 31, 2024	Feb. 16, 2024	Mar. 31, 2024
Class of Stock [Line Items]
Proceeds received	$ 0	$ 195,133
Common Stock [Member]
Class of Stock [Line Items]
Shares issued		2,945,000
Common Stock [Member] | Forward Sale Agreement
Class of Stock [Line Items]
Proceeds received			$ 106,200		$ 275,000		$ 381,200
Shares issued			1,600,000		4,150,000
2020 ATM Program | Common Stock [Member] | Forward Sale Agreement
Class of Stock [Line Items]
Program Size	$ 400,000						$ 400,000		$ 400,000
Shares Issued	3,334,056						3,334,056		3,334,056
Net Proceeds Received	$ 209,500						$ 209,500		$ 209,500
2021 ATM Program | Common Stock [Member] | Forward Sale Agreement
Class of Stock [Line Items]
Program Size	$ 500,000						$ 500,000		$ 500,000
Shares Issued	5,453,975						5,453,975		5,453,975
Net Proceeds Received	$ 379,100						$ 379,100		$ 379,100
2022 ATM Program | Common Stock [Member] | Forward Sale Agreement
Class of Stock [Line Items]
Program Size	$ 750,000						$ 750,000		$ 750,000
Shares Issued	10,217,973						10,217,973		10,217,973
Net Proceeds Received	$ 670,200						$ 670,200		$ 670,200
Proceeds received	$ 0			$ 18,100		$ 433,400
Shares issued	0			245,591		6,363,359
Value of equity instruments terminated								$ 750,000
2022 ATM Program | Common Stock [Member] | Forward Sale Agreement | Scenario, Plan [Member]
Class of Stock [Line Items]
Proceeds received								$ 670,200	$ 300,600
Forward Contract Indexed to Issuer's Equity, Shares								10,217,973	4,350,232
2024 ATM Program | Common Stock [Member] | Forward Sale Agreement
Class of Stock [Line Items]
Program Size	$ 1,000,000						$ 1,000,000	$ 1,000,000	$ 1,000,000