STOCKHOLDERS’ EQUITY - Common Shares Issued and Sold (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Subsidiary, Sale of Stock [Line Items]
Number of Shares Issued (in shares)	65.2	60.5	50.2
Gross Proceeds	$ 1,376.4	$ 1,178.4	$ 1,035.3
Underwriting Fees/Offering Expenses	13.7	24.1	34.0
Net Proceeds	$ 1,362.7	$ 1,154.3	$ 1,001.3
Public offerings
Subsidiary, Sale of Stock [Line Items]
Number of Shares Issued (in shares)		12.1	29.6
Gross Proceeds		$ 236.8	$ 613.5
Underwriting Fees/Offering Expenses		13.4	29.2
Net Proceeds		$ 223.4	$ 584.3
Average Offering Price Per Share (in dollars per share)		$ 19.61	$ 19.74
“At the market” offerings
Subsidiary, Sale of Stock [Line Items]
Number of Shares Issued (in shares)	65.2	48.4	20.6
Gross Proceeds	$ 1,376.4	$ 941.6	$ 421.8
Underwriting Fees/Offering Expenses	13.7	10.7	4.8
Net Proceeds	$ 1,362.7	$ 930.9	$ 417.0
Average Offering Price Per Share (in dollars per share)	$ 21.12	$ 19.44	$ 20.52
Over-allotment option one
Subsidiary, Sale of Stock [Line Items]
Number of Shares Issued (in shares)		12.1	11.2
Average Offering Price Per Share (in dollars per share)		$ 18.53	$ 21.06
Over-allotment option two
Subsidiary, Sale of Stock [Line Items]
Number of Shares Issued (in shares)			9.2
Average Offering Price Per Share (in dollars per share)			$ 19.00
Over-allotment option three
Subsidiary, Sale of Stock [Line Items]
Number of Shares Issued (in shares)			9.2
Average Offering Price Per Share (in dollars per share)			$ 18.87