XML 38 R73.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Deferred Tax Assets, Net [Abstract]    
Net Operating Loss Carryforwards $ 180,005 $ 182,674
Tax Credit Carryforward, Amount 20,154 19,076
Depreciation and Amortization 2,858 3,619
Accruals and Reserves 11,353 14,057
Deferred Revenue 13,367 8,804
Stock-based Compensation 3,592 4,734
Other 294 118
Gross Deferred Tax Assets 231,623 233,082
Valuation Allowance (207,441) (202,004)
Net Deferred Tax Assets 24,182 31,078
Deferred Tax Liabilities, Gross [Abstract]    
Intangible Assets (24,120) (30,960)
Deferred Tax Assets, Net $ 62 $ 118