Revenue

Our primary source of revenue is the sale of glassware products manufactured within a Libbey facility, as well as globally sourced tabletop products including glassware, ceramicware, metalware and others. Our customer contracts generally include a single performance obligation, the shipment of specified products, and are recognized at a point in time when control of the product has transferred to the customer, which primarily takes place when risk of loss transfers in accordance with applicable shipping terms. Revenue is recognized based on the consideration specified in a contract with the customer, and is measured as the amount of consideration we expect to be entitled in exchange for transferring goods or providing services. When applicable, the transaction price includes estimates of variable consideration to the extent it is probable that a significant reversal of revenue recognized will not occur. We estimate provisions for rebates, customer incentives, allowances, returns and discounts based on the terms of the contracts, historical experience and anticipated customer purchases during the rebate period. We continually evaluate the adequacy of these methods used, adjusting our estimates when the amount of consideration we expect to be entitled changes. Refund liabilities are included in accrued liabilities on the Condensed Consolidated Balance Sheet. Our payment terms are based on customary business practices and can vary by region and customer type, but are generally 0-90 days. Since the term between invoicing and expected payment is less than a year, we do not adjust the transaction price for the effects of a financing component. Taxes collected from customers are excluded from revenues and credited directly to obligations to the appropriate governmental agencies.

For the three months ended March 31, 2018, bad debt expense was immaterial. Additionally, adjustments related to revenue recognized in prior periods was not material for the three months ended March 31, 2018. There were no material contract assets, contract liabilities or deferred contract costs recorded on the Condensed Consolidated Balance Sheet as of March 31, 2018. For contracts with a duration of less than one year, we follow an allowable practical expedient and expense contract acquisition costs when incurred. We do not have any costs to obtain or fulfill a contract that are capitalized under ASC Topic 606.

Disaggregation of Revenue:

The following table presents our net sales disaggregated by business channel:



	Three months ended
(dollars in thousands)	March 31, 2018
Foodservice	$	76,173
Retail	55,761
Business-to-business	49,979
Consolidated	$	181,913

Each operating segment has revenues across all our business channels. Each channel has a different marketing strategy, customer base and product composition. Over 75 percent of each segment's revenue is derived from the following business channels: U.S. and Canada from foodservice and retail; Latin America from retail and business-to-business; and EMEA from business-to-business and retail.

Foodservice

The majority of our tabletop products sold in the foodservice channel are sold through a network of foodservice distributors. Our strong foodservice distributor network and in-house sales force provide broad coverage to a wide variety of foodservice establishments, including restaurants, bars, hotels and other travel and tourism venues. A high percentage of foodservice sales are replacements, driving a relatively predictable revenue stream.

Retail

Our primary customers in the retail channel include mass merchants, department stores, national retail chains, pure play e-commerce retailers or marketers, retail and wholesale distributors, value-oriented retailers, grocers and specialty housewares stores. We also operate outlet stores in the U.S. and Mexico.

Business-to-business

Our customers for products sold in the diverse business-to-business channel include beverage companies and custom decorators of glassware for promotional purposes and resale. In addition, sales of our products in this channel include products for candle and floral applications, craft industries and gourmet food-packing companies. Latin America also sells blender jars and various OEM products in this channel.