Other Noninterest Income (Components of Other Noninterest Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Income Disclosure Nonoperating [Abstract]
Income from bank-owned life insurance	$ 3,347	$ 3,317	$ 10,628	$ 7,583
Credit related fees	2,971	2,609	5,815	5,674
Income from derivatives	3,750	4,108	8,785	7,979
Gain on sale of Mastercard Class B common stock	2,800		2,800
Other miscellaneous	5,013	3,100	5,505	7,965
Total other noninterest income	$ 17,881	$ 13,134	$ 33,533	$ 29,201