Fair Value Measurements - Roll Forward, Level 3 (Details) - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	$ 190,334	$ 150,713	$ 134,706
Purchases/Additions	109,496	154,017	118,643
Sales/Reductions	(166,246)	(80,577)	(114,570)
Transfers to (from) Level 3		(1,008)	5,587
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	$ (25,221)	$ (31,310)	$ 6,347
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain (Loss) on Sales of Loans, Net	Gain (Loss) on Sales of Loans, Net	Gain (Loss) on Sales of Loans, Net
Included in Other Comprehensive Income (Loss)	$ 1,178	$ (1,501)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]	OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax	OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Asset balance, End of Year	$ 109,541	$ 190,334	$ 150,713
Trading
Rollforward for financial instruments measured at fair value using Level 3 inputs
Purchases/Additions	3,515
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	(185)
Asset balance, End of Year	3,330
Available for sale securities
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	24,418
Purchases/Additions	6,250	25,919
Sales/Reductions	(4,702)
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	2,672
Included in Other Comprehensive Income (Loss)	1,178	(1,501)
Asset balance, End of Year	29,816	24,418
Loans held for sale
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	38,036	40,707	47,716
Purchases/Additions	85,844	80,417	52,058
Sales/Reductions	(60,326)	(61,522)	(48,900)
Transfers to (from) Level 3		(1,008)	5,587
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	(14,897)	(20,558)	(15,754)
Asset balance, End of Year	48,657	38,036	40,707
Loans held for investment
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	10,858	9,181
Purchases/Additions			9,611
Sales/Reductions	(11,352)		(562)
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	494	1,677	132
Asset balance, End of Year		10,858	9,181
MSR asset
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	96,662	100,825	86,990
Purchases/Additions	11,412	27,359	56,974
Sales/Reductions	(87,268)	(19,055)	(65,108)
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	(15,083)	(12,467)	21,969
Asset balance, End of Year	5,723	96,662	$ 100,825
Derivative
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	820
Purchases/Additions		782
Sales/Reductions	(2,598)
Total Gains or Losses (Realized or Unrealized):
Included in Net Income	1,778	38
Asset balance, End of Year		820
Equity investment
Rollforward for financial instruments measured at fair value using Level 3 inputs
Asset balance, Beginning of Year	19,540
Purchases/Additions	2,475	19,540
Total Gains or Losses (Realized or Unrealized):
Asset balance, End of Year	$ 22,015	$ 19,540