| Cash and cash equivalents | |
| Short-term investments | |
| Accounts receivable, net | |
| Unbilled contracts receivable | |
| Prepaid expenses and other current assets | |
| Total current assets | |
| Long-term investments | |
| Property and equipment, net | |
| Goodwill | |
| Intangible assets, net | |
| Other assets | |
| Total assets | |
| Accounts payable | |
| Accrued expenses and other liabilities | |
| Accrued acquisition-related liabilities | |
| Deferred revenue | |
| Total current liabilities | |
| Long-term liabilities | |
| Commitments and contingencies (Note 4) | |
| Preferred stock, $0.01 par value; 20,000 shares authorized; none issued and outstanding | |
| Common stock, $0.01 par value; 120,000 shares authorized; 38,036 shares and 37,225 shares issued and outstanding at June 30, 2011 and December 31, 2010, respectively | |
| Additional paid-in capital | |
| Accumulated other comprehensive income | |
| Accumulated deficit | |
| Total stockholders' equity | |
| Total liabilities and stockholders' equity |