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Accrued Liabilities (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended
		Dec. 31, 2018	Mar. 31, 2018	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 17,013
Loss Reserve On Contractual Lease Commitments [Member]
Restructuring Cost and Reserve [Line Items]
Loss reserve, noncurrent portion	[1]	$ 2,569		$ 2,686
Duarte Plant Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges
[1] See Note 15, Accrued liabilities for more information on the loss reserve on contractual lease commitments.

X

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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