Goodwill and Intangible Assets, Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Core Deposits [Member]
Estimated future amortization expense
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 8,811
Finite-Lived Intangible Assets, Amortization Expense, Year Two	8,811
Finite-Lived Intangible Assets, Amortization Expense, Year Three	8,811
Finite-Lived Intangible Assets, Amortization Expense, Year Four	8,811
Finite-Lived Intangible Assets, Amortization Expense, Year Five	3,485
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	1,742
Total estimated amortization expense and MSRs decay(a)	40,471	$ 49,282	$ 58,093
Servicing Contracts [Member]
Estimated future amortization expense
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	10,555
Finite-Lived Intangible Assets, Amortization Expense, Year Two	11,404
Finite-Lived Intangible Assets, Amortization Expense, Year Three	10,710
Finite-Lived Intangible Assets, Amortization Expense, Year Four	9,922
Finite-Lived Intangible Assets, Amortization Expense, Year Five	9,005
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	32,794
Total estimated amortization expense and MSRs decay(a)	$ 84,390