Supplemental Financial Data (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Financial Data
Realized gains	$ 7,438	$ 6,255	$ 14,610	$ 13,537
Unrealized gains (losses)	(13,744)	(7,006)	(47,178)	(13,918)
Income (loss) before provision for income taxes	40,163	8,289	(19,290)	35,734
Income (loss) on unconsolidated joint ventures	$ 507	2,083	$ (3,030)	5,012
WFLLA LLC
Supplemental Financial Data
Ownership percentage	50.00%		50.00%
Girod HoldCo, LLC
Supplemental Financial Data
Interest income	$ 268	3,678	$ 649	4,835
Realized gains		430	149	631
Unrealized gains (losses)	(2,234)	5,091	(4,221)	16,368
Servicing expense and other	(845)	(1,460)	(2,433)	(2,357)
Income (loss) before provision for income taxes	(2,811)	7,739	(5,856)	19,477
WFLLA LLC
Supplemental Financial Data
Interest income	134	1,835	324	2,413
Realized gains		215	74	315
Unrealized gains (losses)	(1,115)	2,540	(2,106)	8,168
Servicing expense and other	(422)	(733)	(1,216)	(1,181)
Income (loss) before provision for income taxes	(1,403)	3,857	(2,924)	9,715
Income (loss) on unconsolidated joint ventures	$ (702)	1,929	$ (1,462)	4,858
WFLLA LLC \| Girod HoldCo, LLC
Supplemental Financial Data
Ownership percentage	49.90%		49.90%
Other Unconsolidated Joint Ventures
Supplemental Financial Data
Income (loss) on unconsolidated joint ventures	$ 1,209	$ 154	$ (1,568)	$ 154

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