CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$ (158)	$ 96	$ 175
OtherComprehensiveIncomeForeignCurrencyTranslationForNetInvestmentHedgeArisingDuringPeriodTax	$ (18,001)	$ 21,547	$ 11,311