Fair Value Accounting (Changes In Level 3 Fair Value Measurements) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Gain (loss) included in earnings	$ 18,100	$ 8,600
GGL/SBA Loans Servicing Asset
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance, January 1,	4,101	0
Included in earnings	(1,752)	(1,681)
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	1,380	1,330
Sales		0
Settlements	0	0
Transfer from amortization method to fair value		4,452
Measurement period adjustments related to Global One acquisition		0
Ending balance, December 31,	3,729	4,101
Total net (losses) for the year included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at December 31,	0	0
Earnout Liability
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance, January 1,	(11,348)	(14,000)
Included in earnings	(11,652)	(5,466)
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	0	0
Sales		0
Settlements	8,647	6,352
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		1,766
Ending balance, December 31,	(14,353)	(11,348)
Total net (losses) for the year included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at December 31,	(11,652)	(5,466)
Visa derivative
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance, January 1,	(4,330)	(5,768)
Included in earnings	(2,328)	0
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	0	0
Sales		0
Settlements	4,985	1,438
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		0
Ending balance, December 31,	(1,673)	(4,330)
Total net (losses) for the year included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at December 31,	(1,673)	0
Investment Securities Available for Sale
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance, January 1,	1,935	1,796
Included in earnings	0	0
Unrealized (losses) gains included in other comprehensive income	(150)	139
Additions	0	0
Sales		0
Settlements	0	0
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		0
Ending balance, December 31,	1,785	1,935
Total net (losses) for the year included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at December 31,	0	0
Private Equity Investments
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance, January 1,	15,771	25,493
Included in earnings	(4,743)	(3,093)
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	0	0
Sales		(6,629)
Settlements	0	0
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		0
Ending balance, December 31,	11,028	15,771
Total net (losses) for the year included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at December 31,	$ (4,743)	$ (3,093)

Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Additions

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Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease), Included in Earnings

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This item represents the amount of the total realized and unrealized gains or losses for the period which are included in the statement of income (or changes in net assets); the fair value of which assets and liabilities was or is measured on a recurring basis using significant unobservable inputs (Level 3).

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of gain (loss) recognized in the income statement of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of gain (loss) recognized in other comprehensive income (loss) of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of increase (decrease) of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of sales of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfers of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) into (out of) level 3 of the fair value hierarchy.

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