Loans Receivable - Schedule of Fair Value Based on Risk Ratings (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2026 USD ($) loan	Dec. 31, 2025 USD ($) loan
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	12	18
Fair Value \| $	$ 318.5	$ 690.4
Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	100.00%	100.00%
A+
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	0	1
Fair Value \| $	$ 0.0	$ 127.9
A+ \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	0.00%	18.50%
A
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	1	1
Fair Value \| $	$ 130.6	$ 39.2
A \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	41.00%	5.70%
BBB-
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	0	2
Fair Value \| $	$ 0.0	$ 149.3
BBB- \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	0.00%	21.60%
BB+
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	1	0
Fair Value \| $	$ 43.2	$ 0.0
BB+ \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	13.60%	0.00%
BB
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	0	1
Fair Value \| $	$ 0.0	$ 99.5
BB \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	0.00%	14.40%
BB-
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	1	1
Fair Value \| $	$ 45.5	$ 107.8
BB- \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	14.30%	15.60%
B+
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	0	1
Fair Value \| $	$ 0.0	$ 33.8
B+ \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	0.00%	4.90%
B
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	1	1
Fair Value \| $	$ 57.4	$ 53.1
B \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	18.00%	7.70%
C
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	0	1
Fair Value \| $	$ 0.0	$ 9.5
C \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	0.00%	1.40%
D
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	5	5
Fair Value \| $	$ 0.0	$ 0.0
D \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	0.00%	0.00%
NR
Financing Receivable, Credit Quality Indicator [Line Items]
Number of Loans \| loan	3	4
Fair Value \| $	$ 41.8	$ 70.3
NR \| Loans Receivable \| Credit Concentration Risk
Financing Receivable, Credit Quality Indicator [Line Items]
% of Fair Value	13.10%	10.20%