Revenue from Contracts with Customers Revenue from Contracts with Customers (Schedule of Bank Card Transaction Fees) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	$ 191,156	$ 176,144	$ 167,891
Debit Card [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	43,881	40,968	41,010
Debit Card [Member] | Fee income [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	44,795	44,240	44,170
Debit Card [Member] | Network Charges Expense [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	(914)	(3,272)	(3,160)
Credit Card [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	14,448	14,560	15,144
Credit Card [Member] | Fee income [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	31,639	31,609	29,214
Credit Card [Member] | Network Charges and Rewards Expense [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	(17,191)	(17,049)	(14,070)
Corporate Card Fees [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	110,641	100,012	91,701
Corporate Card Fees [Member] | Fee income [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	220,229	217,539	197,483
Corporate Card Fees [Member] | Network Charges and Rewards Expense [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	(109,588)	(117,527)	(105,782)
Merchant Fees [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	22,186	20,604	20,036
Merchant Fees [Member] | Fee income [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	36,775	34,583	33,019
Merchant Fees [Member] | Network Charges Expense [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	(3,588)	(3,554)	(3,343)
Merchant Fees [Member] | Fees to Cardholder Banks [Member]
Bank Card Transaction Fees [Line Items]
Bank card transaction fees	$ (11,001)	$ (10,425)	$ (9,640)