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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Goodwill (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Mar. 31, 2020
Goodwill [Line Items]
Impairment charge	$ 0	$ 8,777
Aerospace [Member]
Goodwill [Line Items]
Impairment charge
Industrial [Member]
Goodwill [Line Items]
Impairment charge		8,777
Disposal Groups [Member]
Goodwill [Line Items]
Impairment charge		$ 8,777