Balance at Beginning of Period | Additions | Deductions | Balance at End of Period | |||||||||||||
2012 | $ | 2,689 | $ | 81 | $ | 244 | $ | 2,526 | ||||||||
2011 | $ | 2,141 | $ | 731 | $ | 183 | $ | 2,689 | ||||||||
2010 | $ | 3,127 | $ | (545 | ) | $ | 441 | $ | 2,141 |
Year ended December 31, | ||||||||||||
2012 | 2011 | 2010 | ||||||||||
Interest income | $ | 2,898 | $ | 2,775 | $ | 2,698 | ||||||
Foreign currency gains (losses) | 63 | (205 | ) | (640 | ) | |||||||
Other income (expense) | 242 | 2,289 | (288 | ) | ||||||||
Interest income and other, net | $ | 3,203 | $ | 4,859 | $ | 1,770 |
December 31, | ||||||||
2012 | 2011 | |||||||
Computer software and equipment | $ | 113,378 | $ | 107,366 | ||||
Leasehold improvements | 21,056 | 18,553 | ||||||
Furniture and fixtures | 6,430 | 6,235 | ||||||
140,864 | 132,154 | |||||||
Less accumulated depreciation and amortization | (108,073 | ) | (88,951 | ) | ||||
Property and equipment, net | $ | 32,791 | $ | 43,203 |
December 31, | ||||||||
2012 | 2011 | |||||||
Accounts payable | $ | 2,274 | $ | 1,452 | ||||
Accrued compensation | 31,295 | 34,249 | ||||||
Interest payable | 2,957 | 4,665 | ||||||
Other accrued liabilities | 58,304 | 66,671 | ||||||
Accounts payable and accrued expenses | $ | 94,830 | $ | 107,037 |