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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
Change in foreign currency translation adjustment, tax provision (benefit)		$ (4,711)	$ 2,186
Change in net unrealized gains (losses) on available-for-sale securities, tax provision (benefit)	$ 5,460	$ (1,555)	$ 1,440

Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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- Definition

Tax effect on gross appreciation or the gross loss in value of the total of unsold securities during the period being reported on.

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