Fair Value - Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Mortgage Banking Income	Mortgage Banking Income
MSR [Member] | Recurring Basis [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		$ 129,677	$ 87,687
Total net (loss) gain included in Mortgage banking, net	[1]	1,677	30,476
Additions		11,025	14,452
Sales		0	0
Ending Balance		142,379	132,615
The amount of total gains (losses) for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period		8,734	41,530
Other Assets - Derivatives [Member] | Recurring Basis [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		157	1,859
Total net (loss) gain included in Mortgage banking, net	[1]	1,672	(401)
Additions		0	0
Sales		(1,632)	(2,326)
Ending Balance		197	(868)
The amount of total gains (losses) for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period		$ 559	$ (1,181)

[1] Total net (loss) gain included in Mortgage banking, net relating to the MSR includes changes in fair value due to market changes and due to run-off