Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Consolidated Statements of Comprehensive Income
Net income	$ 8,177	$ 6,768
Unrealized gains (losses) on securities available for sale:
Unrealized gains (losses) arising during the period (net of tax of $1,091 and ($257), respectively)	2,026	(478)
Unrealized gains on hedging instruments:
Unrealized gains arising during the period (net of tax of $12 and $0, respectively)	21
Other comprehensive income (loss)	2,047	(478)
Comprehensive income	$ 10,224	$ 6,290

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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