Goodwill

6 Months Ended

Jun. 30, 2012

Goodwill [Abstract]

Goodwill

4. Goodwill

The following table provides a summary of the changes in the carrying amounts of goodwill (in thousands):

Balance as of December 31, 2011, gross	$	17,276
Accumulated impairment loss		—
Balance as of December 31, 2011, net		17,276
Increase in goodwill related to acquisitions		3,177
Other		(246	)
Balance as of June 30, 2012, gross		20,207
Accumulated impairment loss		—
Balance as of June 30, 2012, net	$	20,207

The increase in “goodwill related to acquisitions” is a result of the acquisition in April 2012 of a research and development workforce. Any change in the goodwill amounts resulting from foreign currency translations are presented as “Other” in the above table.