Fair Value - Assets and Liabilities Measured At Fair Value On Recurring Basis Using Significant Unobservable Inputs (Details) - Level 3 - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Mar. 31, 2021 |
Sep. 30, 2021 |
Sep. 30, 2022 |
|
| Loans held for investment | |||||
| Assets | |||||
| Beginning balance | $ 11,940,851 | $ 11,541,117 | $ 10,659,984 | $ 11,171,736 | $ 11,587,382 |
| Total gain or losses included in earnings | (7,558) | (10,328) | 132,499 | 143,362 | (77,600) |
| Purchases and additions, net | 1,482,912 | 1,402,360 | 1,143,109 | 2,831,336 | 5,259,357 |
| Sales and settlements | (417,114) | (738,913) | (534,738) | (1,354,871) | (1,701,481) |
| Transfers in/(out) between categories | (775,127) | (769,107) | (229,118) | (1,366,434) | (2,843,694) |
| Ending balance | 12,223,964 | 11,425,129 | 11,171,736 | 11,425,129 | 12,223,964 |
| Loans held for investment, subject to nonrecourse debt | |||||
| Assets | |||||
| Beginning balance | 6,600,762 | 5,424,621 | 5,396,167 | 5,291,444 | 6,218,194 |
| Total gain or losses included in earnings | (265,038) | 40,355 | (37,757) | 120,763 | (836,632) |
| Purchases and additions, net | 31,359 | 27,857 | 21,064 | 49,898 | 89,907 |
| Sales and settlements | (376,855) | (366,177) | (360,128) | (888,318) | (1,537,044) |
| Transfers in/(out) between categories | 751,163 | 812,995 | 272,098 | 1,365,864 | 2,806,966 |
| Ending balance | 6,741,391 | 5,939,651 | 5,291,444 | 5,939,651 | 6,741,391 |
| Loans held for sale | |||||
| Assets | |||||
| Beginning balance | 270,122 | 160,888 | 152,854 | 135,681 | 166,750 |
| Total gain or losses included in earnings | (4,158) | 386 | 2,764 | 2,202 | (15,361) |
| Purchases and additions, net | 210,004 | 284,650 | 175,551 | 541,088 | 1,001,526 |
| Sales and settlements | (219,663) | (250,058) | (152,579) | (526,014) | (902,713) |
| Transfers in/(out) between categories | 2,906 | (37,059) | (42,909) | 5,850 | 9,009 |
| Ending balance | 259,211 | 158,807 | 135,681 | 158,807 | 259,211 |
| Derivative assets | |||||
| Assets | |||||
| Beginning balance | 13,997 | 35,483 | 88,660 | 38,574 | 23,222 |
| Total gain or losses included in earnings | (10,323) | (5,198) | (50,040) | (8,264) | (19,548) |
| Purchases and additions, net | 0 | 0 | 0 | 0 | 0 |
| Sales and settlements | 0 | (1,110) | (46) | (1,135) | 0 |
| Transfers in/(out) between categories | 0 | 0 | 0 | 0 | 0 |
| Ending balance | 3,674 | 29,175 | 38,574 | 29,175 | 3,674 |
| MSRs | |||||
| Assets | |||||
| Beginning balance | 359,006 | 290,938 | 180,684 | 267,364 | 427,942 |
| Total gain or losses included in earnings | (9,455) | (2,031) | 20,349 | (28,567) | 30,242 |
| Purchases and additions, net | 20,241 | 54,543 | 74,978 | 104,653 | 114,903 |
| Sales and settlements | (266,723) | (2,501) | (8,647) | (2,501) | (470,018) |
| Transfers in/(out) between categories | 0 | 0 | 0 | 0 | 0 |
| Ending balance | 103,069 | 340,949 | 267,364 | 340,949 | 103,069 |
| Retained bonds | |||||
| Assets | |||||
| Beginning balance | 46,593 | 15,671 | 0 | 55,614 | |
| Total gain or losses included in earnings | (2,302) | 839 | 1,505 | (8,611) | |
| Purchases and additions, net | 0 | 24,762 | 39,840 | 0 | |
| Sales and settlements | (1,085) | (22) | (95) | (3,797) | |
| Transfers in/(out) between categories | 0 | 0 | 0 | 0 | |
| Ending balance | 43,206 | 41,250 | 0 | 41,250 | 43,206 |
| Investments | |||||
| Assets | |||||
| Beginning balance | 1,000 | 9,470 | 18,934 | 9,470 | 6,000 |
| Total gain or losses included in earnings | 0 | (3,470) | (9,464) | (3,470) | (5,000) |
| Purchases and additions, net | 0 | 0 | 0 | 0 | 0 |
| Sales and settlements | 0 | 0 | 0 | 0 | 0 |
| Transfers in/(out) between categories | 0 | 0 | 0 | 0 | 0 |
| Ending balance | 1,000 | 6,000 | 9,470 | 6,000 | 1,000 |
| HMBS related obligations | |||||
| Liabilities | |||||
| Beginning balance | (10,745,879) | (10,168,224) | (9,788,668) | (9,926,132) | (10,422,358) |
| Total gains or losses included in earnings | 13,421 | 121,048 | (41,434) | 76,397 | 192,098 |
| Purchases and additions, net | (547,762) | (792,569) | (602,172) | (1,587,902) | (2,488,497) |
| Settlements | 495,379 | 623,435 | 506,142 | 1,221,327 | 1,933,916 |
| Transfers in/(out) between categories | 0 | 0 | 0 | ||
| Ending balance | (10,784,841) | (10,216,310) | (9,926,132) | (10,216,310) | (10,784,841) |
| Deferred purchase price liabilities | |||||
| Liabilities | |||||
| Beginning balance | (4,852) | (11,663) | (3,842) | (3,214) | (12,852) |
| Total gains or losses included in earnings | 0 | (237) | (29) | (1,997) | 0 |
| Purchases and additions, net | 0 | (275) | 0 | (7,275) | 0 |
| Settlements | 0 | 0 | 657 | 311 | 8,000 |
| Transfers in/(out) between categories | 0 | 0 | 0 | ||
| Ending balance | (4,852) | (12,175) | (3,214) | (12,175) | (4,852) |
| Nonrecourse debt in consolidated VIE trusts | |||||
| Liabilities | |||||
| Beginning balance | (6,447,238) | (5,360,603) | (5,257,754) | (5,205,892) | (5,857,069) |
| Total gains or losses included in earnings | 178,700 | (45,116) | (30,770) | (77,717) | 400,741 |
| Purchases and additions, net | (718,656) | (464,209) | (575,668) | (1,260,585) | (2,523,213) |
| Settlements | 461,812 | 134,918 | 658,300 | 809,184 | 1,454,159 |
| Transfers in/(out) between categories | 0 | 0 | 0 | ||
| Ending balance | (6,525,382) | (5,735,010) | (5,205,892) | (5,735,010) | (6,525,382) |
| Nonrecourse commercial loan financing liability | |||||
| Liabilities | |||||
| Beginning balance | (162,464) | (111,738) | |||
| Total gains or losses included in earnings | (2,769) | (2,581) | |||
| Purchases and additions, net | (24,975) | (142,790) | |||
| Settlements | 29,864 | 96,765 | |||
| Transfers in/(out) between categories | 0 | 0 | |||
| Ending balance | (160,344) | (160,344) | |||
| Nonrecourse MSR financing liability | |||||
| Liabilities | |||||
| Beginning balance | (142,382) | (65,129) | (14,088) | (22,051) | (142,435) |
| Total gains or losses included in earnings | 1,736 | (712) | 390 | 3,411 | (14,639) |
| Purchases and additions, net | (92) | (30,232) | (8,353) | (77,433) | (6,884) |
| Settlements | 80,938 | 0 | 0 | 0 | 104,158 |
| Transfers in/(out) between categories | 0 | 0 | 0 | ||
| Ending balance | (59,800) | (96,073) | (22,051) | (96,073) | (59,800) |
| TRA Liability | |||||
| Liabilities | |||||
| Beginning balance | (13,925) | (32,810) | 0 | (29,380) | |
| Total gains or losses included in earnings | 9,070 | (1,036) | (1,896) | 24,525 | |
| Purchases and additions, net | 0 | (1,296) | (33,246) | 0 | |
| Settlements | 0 | 0 | 0 | 0 | |
| Transfers in/(out) between categories | 0 | 0 | 0 | ||
| Ending balance | $ (4,855) | (35,142) | 0 | (35,142) | $ (4,855) |
| Derivative liabilities | |||||
| Liabilities | |||||
| Beginning balance | (1,111) | (1,084) | (936) | ||
| Total gains or losses included in earnings | 275 | 0 | 98 | ||
| Purchases and additions, net | 0 | 0 | 0 | ||
| Settlements | 836 | 148 | 838 | ||
| Transfers in/(out) between categories | 0 | ||||
| Ending balance | $ 0 | $ (936) | $ 0 | ||