Noninterest Income - Other Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Managed service fees
Revenue from External Customer [Line Items]
Noninterest income	$ 15,448	$ 14,152	$ 12,113
Currency preparation
Revenue from External Customer [Line Items]
Noninterest income	3,854	3,195	3,575
ATM loss protection
Revenue from External Customer [Line Items]
Noninterest income	2,401	2,551	2,394
Miscellaneous products and services
Revenue from External Customer [Line Items]
Noninterest income	7,442	10,021	8,773
Total other income
Revenue from External Customer [Line Items]
Noninterest income	$ 29,145	$ 29,919	$ 26,855