Business Combinations - Schedules of Financing receivables Purchased Seasoned Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Apr. 01, 2026	Dec. 31, 2025
Schedule of Financing Receivables Purchased Seasoned Loans [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 36,467,040		$ 31,163,614
American National [Member]
Schedule of Financing Receivables Purchased Seasoned Loans [Line Items]
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process		$ 3,801,050
Financing Receivable, Unamortized Purchase Premium (Discount)		(16,803)
Financing Receivable, before Allowance for Credit Loss		3,784,247
Financing Receivable, Allowance for Credit Loss		(67,775)
Financing Receivable, after Allowance for Credit Loss		3,716,472
American National [Member] | Financial Asset Acquired with Credit Deterioration [Member]
Schedule of Financing Receivables Purchased Seasoned Loans [Line Items]
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process		615,403
Financing Receivable, Unamortized Purchase Premium (Discount)		(19,495)
Financing Receivable, before Allowance for Credit Loss		595,908
Financing Receivable, Allowance for Credit Loss		(39,512)
Financing Receivable, after Allowance for Credit Loss		556,396
American National [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration [Member]
Schedule of Financing Receivables Purchased Seasoned Loans [Line Items]
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process		3,185,647
Financing Receivable, Unamortized Purchase Premium (Discount)		2,692
Financing Receivable, before Allowance for Credit Loss		3,188,339
Financing Receivable, Allowance for Credit Loss		(28,263)
Financing Receivable, after Allowance for Credit Loss		$ 3,160,076