Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets:
Allowance for loan and lease losses	$ 70,937	$ 65,288
Net operating loss and credit carry forwards	62,403	64,561
Compensation and employee benefit plans	52,422	47,748
Net losses on derivative instruments	11,734	12,637
Net unrealized loss on securities available for sale	4,138	0
Other	27,862	27,300
Gross deferred tax assets	229,496	217,534
Valuation allowance	(74,918)	(80,722)
Total deferred tax assets, net of valuation allowance	154,578	136,812
Deferred tax liabilities:
Net unrealized gain on securities available for sale	0	10,288
Equipment-financing leases	23,934	21,930
Deferred income on repurchase of debt	6,376	8,502
Intangible assets	9,165	9,242
Mortgage servicing assets	7,127	7,230
Other	6,398	5,747
Gross deferred tax liabilities	53,000	62,939
Deferred tax asset, net	$ 101,578	$ 73,873