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Income Taxes Deferred Taxes (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Deferred tax assets: |  |
Net operating loss and capital loss carryforwards and credits | $ 34,679 | $ 15,668
Stock compensation | 3,052 | 1,140
Basis of investments in affiliates | 867 | 415
Accrued liabilities and other | 387 | 250
Unrealized loss on short-term investments | 337 | 415
State taxes | 18 | 212
Total deferred tax assets | 39,340 | 18,100
Deferred tax liabilities: |  |
Fixed assets and intangibles | (33,378) | (39,457)
Other | (112) | (60)
Net deferred tax liabilities | 5,850 | (21,417)
Less: valuation allowance | (7,585) | (5,396)
Net deferred taxes | $ (1,735) | $ (26,813)

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