Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents information about the Company’s assets and liabilities as of March 31, 2013 and December 31, 2012 that were measured at fair value on a recurring basis and indicates the fair value hierarchy of the valuation techniques the Company utilized to determine such fair value.

	March 31, 2013
In thousands	Total		Level 1		Level 2		Level 3
Marketable securities	$	25,027	$	—	$	25,027	$	—

	December 31, 2012
In thousands	Total		Level 1		Level 2		Level 3
Marketable securities	$	45,035	$	—	$	45,035	$	—