The aggregate of amounts due from customers or clients, within one year of the balance sheet date (or one operating cycle, if longer), for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date within one year of the balance sheet, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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Revenue From Contracts with Customers - Narratives (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue
Accounts and notes receivable, net of allowances	$ 198,943	$ 247,051
Long-term contracts
Disaggregation of Revenue
Revenue recognized	0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Disaggregation of Revenue
Revenue, Remaining Performance Obligation, Amount		$ 1,251,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01
Disaggregation of Revenue
Revenue, Remaining Performance Obligation, Amount	1,211,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Disaggregation of Revenue
Revenue, Remaining Performance Obligation, Amount	1,145,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Disaggregation of Revenue
Revenue, Remaining Performance Obligation, Amount	$ 29,000