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Accrued Liabilities (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Loss reserve on contractual lease commitments	[1]	$ 1,868			$ 1,868		$ 2,686
Restructuring charges						$ 17,013
Loss Reserve On Contractual Lease Commitments [Member]
Restructuring Cost and Reserve [Line Items]
Payments for restructuring		$ 269	$ 267		818	$ 1,059
Duarte Plant Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges				$ 17,013
Payments for restructuring					7,908
Industrial Turbomachinery Business Realignment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges
Payments for restructuring					$ 3,251		$ 491
[1] See Note 15, Accrued liabilities for more information on the loss reserve on contractual lease commitments.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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