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Significant Customer Concentrations Stock-Based Retailer Incentive Compensation (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2013
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Jun. 30, 2012
|
Jun. 30, 2013
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Jun. 30, 2012
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| Significant Customer Concentrations [Abstract] | ||||
| Stock-based retailer incentive compensation | $ 1,967 | $ 2,593 | $ 3,576 | $ 5,783 |