Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Schedule of contract commitments  
2012 (remaining six months) $ 2,761
2013 4,773
2014 1,419
2015 1,080
2016 1,080
Due after 5 years 360
Total contract commitments $ 11,473