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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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Goodwill - Additional Information (Details) - USD ($)	3 Months Ended			9 Months Ended
Goodwill - Additional Information (Details) - USD ($)	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 0			$ 0		$ 94,779,000
Goodwill impairment	$ 0		$ 0	$ 92,942,000	$ 0
Mobile Solutions
Goodwill [Line Items]
Goodwill						$ 0
Power Solutions
Goodwill [Line Items]
Goodwill impairment		$ 92,900,000