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Accrued Liabilities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Mar. 31, 2018	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 19,040		$ 19,040
Termination Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges			$ 19,040
Duarte Relocation Restructuring Charge Reserve
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 17,013

X

- Definition

Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

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-Publisher FASB
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+ Details

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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.

+ References

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-SubTopic 10
-Section S99
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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Details

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X

- Details

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Period Type: