Revenue

Our primary source of revenue is the sale of glass tableware products manufactured within a Libbey facility as well as globally sourced tabletop products, including glassware, ceramicware, metalware and others. Adjustments related to revenue recognized in prior periods was not material for the three months and six months ended June 30, 2019 and 2018. There were no material contract assets, contract liabilities or deferred contract costs recorded on the Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018.

Disaggregation of Revenue:

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



	Three months ended June 30,				Six months ended June 30,
(dollars in thousands)	2019		2018		2019		2018
Foodservice	$	86,999	$	93,194	$	157,816	$	169,367
Retail	60,222		61,670		115,795		117,431
Business-to-business	58,937		58,670		107,513		108,649
Consolidated	$	206,158	$	213,534	$	381,124	$	395,447

Each operating segment has revenues across all our business channels. Each channel has a different marketing strategy, customer base and product composition. For all periods presented, 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.