Other Assets Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Other Assets [Abstract]
Low Income Housing Tax Credit - LIHTC	$ 297,746	$ 213,034
Cash Surrender Value of Life Insurance	203,836	203,031
Interest and fees receivable income	120,329	101,596
Equity Investments Without Readily Determinable Fair Value	62,975	34,304
SBIC Investments	46,861	32,327
Income Taxes Receivable	36,011	59,565
Equity Investments With Readily Determinable Fair Value	28,578	6,147
Warrants and Rights Outstanding	3,555	4,520
Prepaid Expense	27,632	22,999
Other Assets, Miscellaneous	133,244	63,016
Other Assets	1,083,992	860,326
Operating Lease, Right-of-Use Asset	$ 123,225	$ 119,787