Goodwill and Other Acquisition-Related Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Line Items]
Goodwill increase as a result of acquisition	$ 2,622
Amortization of other acquisition-related intangible assets	5,498	$ 6,116	$ 7,734
Specialty finance
Goodwill [Line Items]
Goodwill increase as a result of acquisition	0
Goodwill increase as a result of foreign currency translation adjustments	$ 526
Specialty finance | Customer list intangibles
Goodwill [Line Items]
Amortization period in years, other intangible assets	18 years
Community banking
Goodwill [Line Items]
Goodwill increase as a result of acquisition	$ 0
Community banking | Core deposit intangibles
Goodwill [Line Items]
Amortization period in years, other intangible assets	10 years
Wealth management
Goodwill [Line Items]
Goodwill increase as a result of acquisition	$ 2,622
Wealth management | Customer list and other intangibles
Goodwill [Line Items]
Amortization period in years, other intangible assets	10 years