Warehouse and Other Secured Lines of Credit - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
Outstanding amount	$ 2,950,000		$ 2,950,000		$ 1,200,000
Warehouse Line of Credit
Line of Credit Facility [Line Items]
Outstanding amount	8,600,078		8,600,078		8,912,496
Warehouse Line of Credit \| Line of Credit, ASAP program
Line of Credit Facility [Line Items]
Outstanding amount	0		0		0
Maximum borrowing capacity	600,000		600,000
Warehouse Line of Credit \| Line of Credit, EF
Line of Credit Facility [Line Items]
Outstanding amount	244,813		244,813		20,448
Maximum borrowing capacity	750,000		750,000
Revolving Credit Facility \| MSR Facility \| Line of Credit
Line of Credit Facility [Line Items]
Outstanding amount	1,875,000		1,875,000		900,000
Maximum borrowing capacity							$ 2,000,000
Revolving Credit Facility \| GNMA MSR Facility \| Line of Credit
Line of Credit Facility [Line Items]
Outstanding amount	$ 1,075,000		$ 1,075,000		$ 300,000
Maximum borrowing capacity						$ 1,250,000
Weighted average interest rate	6.14%	7.32%	6.16%	7.32%