Borrowings - Schedule of Maturities Requirements for Borrowings (Details) $ in Thousands	Jun. 30, 2026 USD ($)
Debt Instrument [Line Items]
Total	$ 5,304,541
Less Than 1 Year	134,315
1 – 3 Years	922,804
3 – 5 Years	2,757,332
More Than 5 Years	1,490,090
2025 Debt Securitization
Debt Instrument [Line Items]
Total	599,090
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	0
More Than 5 Years	599,090
2025-R Debt Securitization
Debt Instrument [Line Items]
Total	556,000
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	0
More Than 5 Years	556,000
2026-B Debt Securitization
Debt Instrument [Line Items]
Total	335,000
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	0
More Than 5 Years	335,000
SMBC Credit Facility
Debt Instrument [Line Items]
Total	975,061
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	975,061
More Than 5 Years	0
BANA Credit Facility
Debt Instrument [Line Items]
Total	310,900
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	310,900
More Than 5 Years	0
2027 Notes
Debt Instrument [Line Items]
Total	429,871
Less Than 1 Year	0
1 – 3 Years	429,871
3 – 5 Years	0
More Than 5 Years	0
2028 Notes
Debt Instrument [Line Items]
Total	492,933
Less Than 1 Year	0
1 – 3 Years	492,933
3 – 5 Years	0
More Than 5 Years	0
2029 Notes
Debt Instrument [Line Items]
Total	486,352
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	486,352
More Than 5 Years	0
2030 Notes
Debt Instrument [Line Items]
Total	497,930
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	497,930
More Than 5 Years	0
2031 Notes
Debt Instrument [Line Items]
Total	487,089
Less Than 1 Year	0
1 – 3 Years	0
3 – 5 Years	487,089
More Than 5 Years	0
Other short-term borrowings
Debt Instrument [Line Items]
Total	134,315
Less Than 1 Year	134,315
1 – 3 Years	0
3 – 5 Years	0
More Than 5 Years	$ 0