Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Noninterest income in scope of Topic 606	$ 1,592	$ 811	$ 3,413	$ 1,526
Noninterest income out of scope of Topic 606	43,921	25,576	52,950	33,626
Total noninterest income	45,513	26,387	56,363	35,152
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Noninterest income in scope of Topic 606	286	333	736	648
Debit card and interchange income
Disaggregation of Revenue [Line Items]
Noninterest income in scope of Topic 606	242	181	342	322
Consulting income
Disaggregation of Revenue [Line Items]
Noninterest income in scope of Topic 606	941	0	1,950	0
Other
Disaggregation of Revenue [Line Items]
Noninterest income in scope of Topic 606	$ 123	$ 297	$ 385	$ 556