Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value of Assets and Liabilities Measured on Recurring Basis

The following table provides additional information related to assets and liabilities measured at fair value on a recurring basis at December 31, 2012 and 2011. The reference to level within the table relates to the level of inputs used to determine fair value, which the key inputs are then described below. The table (in thousands) is as follows:



	Level 1		Level 2		Level 3
As of December 31, 2012:
Investment in convertible notes	$	—	$	—	$	8,195
As of December 31, 2011:
Investment in convertible note	—		—		5,770
Investment in RXT shares	556		—		—