Income Taxes - Changes in Gross Amounts of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] | ||
| Balance at beginning of the year | $ 104,491 | $ 19,484 |
| Additions based on tax positions related to current year | 0 | 85,932 |
| Additions for tax positions of prior years | 0 | 0 |
| Reductions for tax positions of prior years | (851) | (925) |
| Settlements | 0 | 0 |
| Balance at end of the year | 103,640 | $ 104,491 |
| Excess Tax Benefit From Share Based Compensation To Be Realized Upon Utilization Of Net Operating Loss Carryforward | $ 168,700 | |
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- Definition Excess Tax Benefit From Share Based Compensation To Be Realized Upon Utilization Of Net Operating Loss Carryforward No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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