Revenue - Net Interest Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Interest income
Mortgage interest income	$ 7,075	$ 5,400	$ 21,298	$ 12,832
Interest income on loans held for investment	6,560	705	12,333	1,008
Interest income from investments	3,220	3,762	7,826	14,060
Interest income	16,855	9,867	41,457	27,900
Interest expense
Warehouse interest expense	(5,627)	(3,178)	(14,142)	(7,575)
Interest expense on customer deposits	(6,559)	(637)	(12,916)	(1,007)
Other interest expense	0	(1,631)	(1,711)	(5,963)
Interest expense	(12,186)	(5,446)	(28,769)	(14,545)
Net interest income	$ 4,669	$ 4,421	$ 12,688	$ 13,355