Loans and Allowance for Credit Losses - Schedule of Delinquency Information (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
UPB	$ 4,473,984	$ 5,491,880
2026	28,269	290,777
2025	225,037	547,264
2024	489,096	324,720
2023	231,181	1,521,945
2022	1,273,821	1,445,492
Pre 2022	1,920,471	1,064,179
Total Loans, net	4,167,875	5,194,377
Current
Financing Receivable, Credit Quality Indicator [Line Items]
UPB	3,526,286	4,478,531
2026	28,195	286,900
2025	218,150	386,892
2024	381,119	293,829
2023	220,910	1,152,549
2022	921,002	1,171,991
Pre 2022	1,559,717	983,329
Total Loans, net	3,329,093	4,275,490
30 - 59 days past due
Financing Receivable, Credit Quality Indicator [Line Items]
UPB	227,440	392,885
2026	10	1,788
2025	4,555	126,870
2024	25,666	9,336
2023	5,069	147,167
2022	81,711	92,247
Pre 2022	102,504	11,691
Total Loans, net	219,515	389,099
60+ days past due
Financing Receivable, Credit Quality Indicator [Line Items]
UPB	720,258	620,464
2026	64	2,089
2025	2,332	33,502
2024	82,311	21,555
2023	5,202	222,229
2022	271,108	181,254
Pre 2022	258,250	69,159
Total Loans, net	$ 619,267	$ 529,788

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