Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Inventory
Raw materials	$ 131,729	$ 133,797
Work-in-progress	40,859	39,617
Finished goods	4,633	56,653
Total inventory	177,221	$ 230,067
Goodwill
Goodwill, Impairment Loss	$ 0

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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