Fair Value of Financial Instruments - Narrative (Details) $ in Thousands	1 Months Ended
May 31, 2015 USD ($)
Powertrain
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of contingent consideration	$ 8,200

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration