Summary of Significant Accounting Policies - Intangible assets, Transfer of financial assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Intangible Assets
Goodwill	$ 1,923,106	$ 1,923,106	$ 1,581,085
Impairment Charges	$ 0
Minimum
Intangible Assets
Estimated useful lives of intangibles	10 years
Maximum
Intangible Assets
Estimated useful lives of intangibles	13 years
Core deposit intangibles | Minimum
Intangible Assets
Estimated useful lives of intangibles	10 years
Core deposit intangibles | Maximum
Intangible Assets
Estimated useful lives of intangibles	15 years
Client list intangibles
Intangible Assets
Estimated useful lives of intangibles	15 years
Client list intangibles | Minimum
Intangible Assets
Estimated useful lives of intangibles	10 years
Client list intangibles | Maximum
Intangible Assets
Estimated useful lives of intangibles	15 years