Fair Value Accounting (Changes In Level 3 Fair Value Measurements) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Visa Derivative
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance, January 1, 2017	$ (4,330)	$ (5,768)
Included in earnings	0	0
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	0
Settlements	(356)	356
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		0
Ending balance, September 30,	(3,974)	(5,412)
Total net (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	0	0
Other liabilities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance, January 1, 2017	(11,348)	(14,000)
Included in earnings	0	0
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	0
Settlements	0	0
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		2,579
Ending balance, September 30,	(11,348)	(11,421)
Total net (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	0	0
GGL / SBA Loans Servicing Asset
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance, January 1, 2017	4,101	0
Included in earnings	(422)	0
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	292
Settlements	0	0
Transfer from amortization method to fair value		4,178
Measurement period adjustments related to Global One acquisition		0
Ending balance, September 30,	3,971	4,178
Total net (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	(422)	0
Investment Securities Available for Sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance, January 1, 2017	1,935	1,796
Included in earnings	0	0
Unrealized (losses) gains included in other comprehensive income	(83)	55
Additions	0
Settlements	0	0
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		0
Ending balance, September 30,	1,852	1,851
Total net (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	0	0
Private Equity Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance, January 1, 2017	15,771	25,493
Included in earnings	(3,056)	(1,814)
Unrealized (losses) gains included in other comprehensive income	0	0
Additions	0
Settlements	0	0
Transfer from amortization method to fair value		0
Measurement period adjustments related to Global One acquisition		0
Ending balance, September 30,	12,715	23,679
Total net (losses) for the period included in earnings attributable to the change in unrealized losses relating to assets/liabilities still held	$ (3,056)	$ (1,814)

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

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- Definition

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

+ References

No definition available.

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- Definition

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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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

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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Fair value of financial instrument classified as 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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