v2.4.0.8

Income Taxes , Deferred Tax Assets (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Deferred Taxes [Line Items] |  |  |
Income tax benefit from employee stock option plans | $ 3,460,000 | $ 14,278,000 | $ 26,205,000
Deferred tax assets: |  |  |
Net operating loss carryforward | 2,183,000 | 587,000 |
Deferred revenue | 47,341,000 | 36,438,000 |
Nondeductible reserves and accruals | 16,055,000 | 13,437,000 |
Depreciation and amortization | (465,000) | 920,000 |
General business credit carryforward | 439,000 | 1,381,000 |
Stock-based compensation | 15,468,000 | 9,413,000 |
Other | 17,000 | 12,000 |
Total deferred tax assets | 81,038,000 | 62,188,000 |
Foreign earnings deemed to be permanently reinvested overseas | 27,500,000 |  |
State and Local Jurisdiction [Member] |  |  |
Deferred tax assets: |  |  |
State net operating loss carryforwards | 21,700,000 |  |
State tax credit carryforwards | 4,200,000 |  |
California [Member] |  |  |
Deferred Taxes [Line Items] |  |  |
Amount of unrecognized deferred tax asset relating to tax credits for excess tax benefits for stock-based compensation expense | $ 3,500,000 |  |

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