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Fair Value Measurements - Reconciliation of Level 3 Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Loans Held for Sale
Reconciliation of Level 3 Assets:
Beginning balance	$ 2,309,366	$ 579,666
Transfers in	522,640	718,158
Transfers out/principal reductions	(618,320)	(307,462)
Net transfers and revaluation gains (losses)	0	0
Total gains (losses) included in net income	(34,924)	472
Ending balance	2,178,762	990,834
IRLCs
Reconciliation of Level 3 Assets:
Beginning balance	538,861	1,897,194
Transfers in	0	0
Transfers out/principal reductions	0	0
Net transfers and revaluation gains (losses)	(325,651)	(1,131,979)
Total gains (losses) included in net income	0	0
Ending balance	$ 213,210	$ 765,215

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- Definition

Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Net Transfers And Revaluation Gain (Loss)

+ References

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- Definition

Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases And Issues

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- Definition

Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales And Settlements

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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