Other assets and other liabilities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Other assets:
Goodwill	$ 49,091	$ 38,530
Deferred loan exit fees	30,175	32,271
Accrued interest	65,498	64,504
Due from servicers	35,759	20,780
Intangible assets	28,704	17,749
PPP receivables	23,735	34,597
Receivable from third parties	32,895	36,519
Deferred financing costs	9,994	9,544
Deferred tax asset	21,085
Tax receivable	61,526	3,069
Right-of-use assets	$ 3,957	$ 2,539
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total other assets	Total other assets
Investments held to maturity	$ 3,446	$ 3,446
Purchased future receivables, net	2,093	9,483
Other assets	11,455	27,144
Total other assets	$ 379,413	$ 300,175
Weighted average interest rate of held to maturity investments	10.00%	10.00%
Accounts payable and other accrued liabilities:
Accrued salaries, wages and commissions	$ 20,028	$ 33,961
Accrued interest payable	38,545	35,373
Servicing principal and interest payable	10,360	6,249
Deferred tax liability	32,977	32,977
Repair and denial reserve	7,580	6,974
Payable to related parties	12,854	7,038
PPP liabilities	24,830	36,182
Accrued professional fees	3,235	5,354
Lease payable	9,384	8,205
Other liabilities	44,973	35,168
Total accounts payable and other accrued liabilities	$ 204,766	$ 207,481
Minimum
Other assets:
Maturity term of held to maturity investments	1 year	1 year
Maximum
Other assets:
Maturity term of held to maturity investments	5 years	5 years