Revenue Recognition - Contract Liabilities - Customer Loyalty Programs (Details) $ in Thousands |
3 Months Ended |
|---|---|
|
Mar. 31, 2018
USD ($)
| |
| Change in Contract with Customer, Liability [Roll Forward] | |
| Outstanding at December 31, 2017 | $ 1,126 |
| Increase (decrease) attributed to: | |
| Customer loyalty net deferrals | 1,790 |
| Customer loyalty redemptions | (1,445) |
| Outstanding at March 31, 2018 | $ 1,471 |
| X | ||||||||||
- Definition Change in Contract with Customer, Liability [Abstract] No definition available.
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| X | ||||||||||
- Definition Change in Contract with Customer, Liability [Roll Forward] No definition available.
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| X | ||||||||||
- Definition Contract with Customer, Liability No definition available.
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| X | ||||||||||
- Definition Contract with Customer, Liability, Customer Loyalty Net Deferrals No definition available.
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| X | ||||||||||
- Definition Contract with Customer, Liability, Customer Loyalty Redemption No definition available.
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