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Revenue Recognition and Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Revenue Recognized

The impact of the adoption of ASC 606 on revenue recognized during the years ended December 31, 2020 and December 31, 2019 is as follows:

			2020				2019				2018
Contract liabilities with customers at January 1,			$	9,623			$	7,477			$	6,950
Revenue recognized				(14,570	)			(16,352	)			(20,653	)
Revenue deferred				5,031				18,498				21,180
Contract liabilities with customers at December 31,			$	84			$	9,623			$	7,477

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- Definition

Tabular disclosure of the recognition of revenue arrangements under which the entity does or will perform multiple revenue-generating activities, categorized by type of arrangement. This item includes certain revenue arrangements that include software elements. This item does not include multiple-deliverable arrangements for industries that prepare disclosures under specific requirements (for instance, construction-type and production-type contracts) otherwise provided for in the taxonomy.

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