Goodwill and Other Intangible Assets (Summary of the Gross Carrying Amount and Accumulated Amortization of Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortizable intangible assets:
Gross Carrying Amount	$ 59,590	$ 60,690
Accumulated Amortization	33,510	31,183
Total	26,080	29,507
Unamortizable intangible assets:
Goodwill	478,750	478,750
Intangibles before servicing assets
Amortizable intangible assets:
Total	26,080
Customer lists
Amortizable intangible assets:
Gross Carrying Amount	1,600	2,700
Accumulated Amortization	1,227	2,167
Total	373	533
Core deposit intangibles
Amortizable intangible assets:
Gross Carrying Amount	57,890	57,890
Accumulated Amortization	32,187	28,933
Total	25,703	28,957
Other intangibles
Amortizable intangible assets:
Gross Carrying Amount	100	100
Accumulated Amortization	96	83
Total	$ 4	$ 17