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Accounts Receivable and Inventories | 12 Months Ended
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Dec. 31, 2019
Accounts Receivable and Inventories [Abstract] |
Accounts Receivable and Inventories | Accounts Receivable and Inventories Accounts receivable consist of the following:
(In thousands) |  | December 31 2019 |  | December 31 2018
Trade accounts receivable |  | $ | 323,502 |  |  | $ | 251,013 |
Less: Allowance for doubtful accounts |  | (13,512 | ) |  | (4,586 | )
Trade accounts receivable, net |  | $ | 309,990 |  |  | $ | 246,427 |
Insurance claim receivable (a) |  | $ | — |  |  | $ | 30,000 |
Other receivables (b) |  | $ | 21,265 |  |  | $ | 23,770 |
(a) | Relates to the Lima Refinery litigation. See Note 11, Commitments and Contingencies, for additional information.
(b) | Other receivables include employee receivables, tax claim receivables and other miscellaneous receivables not included in Trade accounts receivable, net.
The provision for doubtful accounts related to trade accounts receivable was as follows:
|  | Years Ended December 31
(In thousands) |  | 2019 |  | 2018 |  | 2017
Provision for doubtful accounts related to trade accounts receivable |  | $ | 7,507 |  |  | $ | 380 |  |  | $ | 5,211 |
The increase in the provision for doubtful accounts for the year ended 2019 primarily resulted from a provision for doubtful accounts in the Harsco Environmental Segment related to a customer in the U.K. entering administration. The Company continues to provide services to the customer and continues to collect on post-administration invoices timely while the customer seeks a buyer for their operations. Depending on the outcome of any potential transactions, there could be an impact on the Company's results of operations, cash flows and asset valuations in the future, which may be material in any one period. The provision for doubtful accounts for the year ended 2017 relates principally to the write-off of certain pre-administration receivable balances for one of the Company's customers in Australia in the Harsco Environmental Segment. Inventories consist of the following:
(In thousands) |  | December 31 2019 |  | December 31 2018
Finished goods |  | $ | 14,550 |  |  | $ | 11,892 |
Work-in-process |  | 13,088 |  |  | 20,839 |
Raw materials and purchased parts |  | 104,488 |  |  | 61,547 |
Stores and supplies |  | 24,865 |  |  | 21,907 |
Total inventories |  | $ | 156,991 |  |  | $ | 116,185 |
Valued at lower of cost or market: |  |  |  |
LIFO basis |  | $ | 101,465 |  |  | $ | 66,650 |
FIFO basis |  | 7,473 |  |  | 5,719 |
Average cost basis |  | 48,053 |  |  | 43,816 |
Total inventories |  | $ | 156,991 |  |  | $ | 116,185 |
Inventories valued on the LIFO basis at both December 31, 2019 and 2018 were approximately $23 million less than the amounts of such inventories valued at current costs. During 2018 and 2017 as a result of reducing certain inventory quantities valued on a LIFO basis, net income (loss) was favorably impacted compared to that which would have been recorded under the FIFO basis of valuation by $0.6 million and $0.4 million, respectively. There was no impact during 2019. The Company recognized an initial estimated forward loss provision related to the contracts with the federal railway system of Switzerland ("SBB") of $45.1 million for the year ended December 31, 2016. The Company recorded an additional forward loss provision of $1.8 million for the year ended December 31, 2018. At December 31, 2019, the entire remaining estimated forward loss provision of $6.4 million is included in the caption Other current liabilities on the Consolidated Balance Sheets. The estimated forward loss provision represents the Company's best estimate based on currently available information. It is possible that the Company's overall estimate of costs to complete these contracts may increase, which would result in an additional estimated forward loss provision at such time. The Company recognized $23.4 million and $24.2 million of revenues for the contracts with SBB, on an over time basis, utilizing a cost-to-cost method for the years ended December 31, 2019 and 2018, respectively. In addition, for the year ended December 31, 2017 $42.5 million of revenue based on the percentage-of-completion (units-of-delivery) method of accounting, whereby revenues and estimated average costs of the units to be produced under the contracts are recognized as deliveries are made or accepted. The Company has substantially completed the first contract and is approximately 42% complete on the second contract with SBB as of December 31, 2019.

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- Definition Accounts Receivable and Inventories [Abstract] + References No definition available. + Details
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- Definition Disclosure itemizing the various types of trade accounts receivable and other receivables, including the gross carrying value, allowance, and net carrying value as of the balance sheet date. Also includes the disclosure related to inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. + References No definition available. + Details
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