Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

The following table provides information about contract assets and contract liabilities from contracts with customers:

	12/31/2019		12/31/2018		At Adoption
Contract assets	$	14,894	$	9,330	$	11,932
Contract liabilities - current	44,001		36,461		48,268
Contract liabilities - non-current	9,121		9,382		9,916

Contract assets primarily relate to the Company's right to consideration for work completed but not billed at the reporting date and are recorded in prepaid and other current assets in the Condensed Consolidated Balance Sheet. Contract assets are transferred to receivables when the right to consideration becomes unconditional. Contract liabilities relate to advance consideration received from customers for which revenue has not been recognized. Current contract liabilities are recorded in other accrued expenses and non-current contract liabilities are recorded in other liabilities in the Condensed Consolidated Balance Sheet. Contract liabilities are reduced when the associated revenue from the contract is recognized.

The revenue recognized during 2019 and 2018 that was included in the contract liability at the beginning of the respective periods amounted to $31,283 and $38,410.