Derivative Financial Instruments (Summary Amounts Included In Consolidated Statement Of Income Related To Derivatives) (Details) (USD $) In Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Interest Rate Swaps And Floors [Member] \| Trading Gains/Losses [Member]
Income related to derivative instruments not designated in hedge relationships	$ 535	$ (36)	$ (93)	$ (339)
Mortgage Banking Derivatives [Member] \| Mortgage Banking Revenue [Member]
Income related to derivative instruments not designated in hedge relationships	448	(4,593)	(1,060)	(13,194)
Covered Call Options [Member] \| Other Income [Member]
Income related to derivative instruments not designated in hedge relationships	$ 3,436	$ 703	$ 8,193	$ 1,162

- Definition

The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments.

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