Consolidated Statements of Comprehensive Income Paranthetical (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Available-for-sale Securities [Abstract]
Net Unrealized Gains, Tax Impact	$ (481)	$ 2,182	$ 697	$ 2,310
Reclassification Adjustments, Tax Impact	(29)	(38)	(253)	(79)
Cash Flow Hedges [Abstract]
Net Unrealized Losses, Tax Impact	6,462	6,083	6,288	2,504
Reclassification Adjustments, Tax Impact	$ (640)	$ (358)	$ (2,702)	$ (610)

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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