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Accounts and Notes Receivable - Schedule of Accounts and Notes Receivable (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Short-term |  |
Accounts and notes receivable | $ 390,184 | $ 389,047
Allowance for doubtful accounts | (43,419) | (47,209)
Total net short-term accounts and notes receivable | 346,765 | 341,838
Long-term |  |
Notes receivable | 51,956 | 53,043
Allowance for doubtful accounts | (10,000) | (10,000)
Total net long-term notes receivable | 41,956 | 43,043
Total net accounts and notes receivable | $ 388,721 | $ 384,881

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