Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Other operating income (out-of-scope of Topic 606)	$ 20,200	$ 8,858	$ 41,577	$ 22,924
Total Other Operating Income	21,628	10,509	45,596	27,611
Other operating income (in-scope of Topic 606)
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	1,428	1,651	4,019	4,687
Bankcard fees
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	770	820	2,094	2,214
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	269	398	802	1,224
Other
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	389	433	1,123	1,249
Gains On Sale Of Other Real Estate Owned
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	$ 100	$ 63	$ 176	$ 380