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Cash and cash equivalents and short-term investments (Tables)

12 Months Ended

Dec. 31, 2012

Cash and cash equivalents and short-term investments [Abstract]

Short-term investments

As of December 31, 2012 (in thousands)		Cost basis				Unrealized Gains				Unrealized Losses				Recorded Basis
Dutch Treasury Certificates			279,988				-				-				279,988
Deposits			650,017				-				-				650,017
Total			930,005				-				-				930,005

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- Definition

Tabular disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities.

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