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Inventories | 9 Months Ended
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Sep. 30, 2017
Inventory Disclosure [Abstract] |
Inventories | 12. Inventories Costs included in inventories are raw materials, labor, supplies and allocable depreciation and overhead. Raw material inventories are valued on an average cost basis. Other inventory cost elements are valued at cost, using the first-in, first-out method. The Company writes down the inventories for estimated obsolescence, and to lower of cost or net realizable value based upon assumptions about future demand and market conditions. If actual demand or market conditions are less favorable than those projected by the Company, additional inventory write-downs may be required. Once established, the original cost of the inventory less the related write-down represents the new cost basis of such inventories. The AEC segment has long-term contracts under which we incur engineering and development costs that are allocable to parts that will be delivered over multiple years. These costs are included in Work in process in the table below. As of September 30, 2017 and December 31, 2016, inventories consisted of the following:
(in thousands) | September 30, 2017 | December 31, 2016
Raw materials | $45,142 | $37,691
Work in process | 83,129 | 58,715
Finished goods | 28,872 | 37,500
Total inventories | $157,143 | $133,906

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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