Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Allowance for loan losses	$ 80,270	$ 76,407
Loan purchase accounting adjustments		164
State net operating loss	2,560	3,348
Lease liability	26,686	28,226
Net unrealized losses on securities available-for-sale and cash flow hedges	155,432	148,825
Derivatives	22,840	26,344
Other	14,271	15,553
Gross deferred tax assets	302,059	298,867
Valuation allowance	(4,623)	(5,145)
Net deferred tax assets	297,436	293,722
Employee compensation and benefits	(14,708)	(9,895)
Fixed assets & intangibles	(33,500)	(28,129)
Lease financing	(60,354)	(56,576)
Right-of-use asset	(22,383)	(23,773)
Loan purchase accounting adjustments	(8)
Other	(19,916)	(21,965)
Gross deferred tax liabilities	(150,869)	(140,338)
Net deferred tax asset	$ 146,567	$ 153,384