Recent Transactions	3 Months Ended
Mar. 31, 2019
Business Combinations [Abstract]
Business Combination Disclosure	Recent Transactions On January 2, 2019, the Company acquired Rinehart Motion Systems LLC and AM Racing LLC, two established companies in the specialty electric and hybrid propulsion market, for approximately $15 million, of which $10 million was paid in the first quarter of 2019 and the remaining $5 million will be paid upon satisfaction of certain conditions. The Company created Cascadia Motion LLC ("Cascadia Motion") to combine assets and operations of these two acquired companies. Based in Oregon, Cascadia Motion specializes in design, development and production of hybrid and electric propulsion solutions for prototype and low-volume production applications. It allows the Company to offer design, development and production of full electric and hybrid propulsion systems for niche and low-volume manufacturing applications. In connection with the acquisition, the Company recognized $5 million of intangible assets, goodwill of $7 million within the Drivetrain reporting segment, and other assets and liabilities of $2 million to reflect the preliminary fair value of the assets acquired and liabilities assumed. The intangible assets will be amortized over a period of 2 to 15 years. Various valuation techniques were used to determine the fair value of the intangible assets, with the primary techniques being forms of the income approach, which use significant unobservable inputs, or Level 3 inputs, as defined by the fair value hierarchy. Under these valuation approaches, the Company is required to make estimates and assumptions about sales, operating margins, growth rates, royalty rates and discount rates based on budgets, business plans, economic projections, anticipated future cash flows and marketplace data. Due to the nature of the transaction, goodwill is not deductible for tax purposes. The Company is in the process of finalizing all purchase accounting adjustments related to the acquisition of Cascadia Motion. Certain estimated values for the acquisition, including goodwill, intangible assets and deferred taxes, are not yet finalized, and the preliminary purchase price allocations are subject to change as the Company completes its analysis of the fair value at the date of acquisition. Due to its insignificant size relative to the Company, supplemental pro forma financial information of the combined entity for the current and prior reporting period is not provided.

Recent Transactions

On January 2, 2019, the Company acquired Rinehart Motion Systems LLC and AM Racing LLC, two established companies in the specialty electric and hybrid propulsion market, for approximately $15 million, of which $10 million was paid in the first quarter of 2019 and the remaining $5 million will be paid upon satisfaction of certain conditions.

The Company created Cascadia Motion LLC ("Cascadia Motion") to combine assets and operations of these two acquired companies. Based in Oregon, Cascadia Motion specializes in design, development and production of hybrid and electric propulsion solutions for prototype and low-volume production applications. It allows the Company to offer design, development and production of full electric and hybrid propulsion systems for niche and low-volume manufacturing applications.

In connection with the acquisition, the Company recognized $5 million of intangible assets, goodwill of $7 million within the Drivetrain reporting segment, and other assets and liabilities of $2 million to reflect the preliminary fair value of the assets acquired and liabilities assumed. The intangible assets will be amortized over a period of 2 to 15 years. Various valuation techniques were used to determine the fair value of the intangible assets, with the primary techniques being forms of the income approach, which use significant unobservable inputs, or Level 3 inputs, as defined by the fair value hierarchy. Under these valuation approaches, the Company is required to make estimates and assumptions about sales, operating margins, growth rates, royalty rates and discount rates based on budgets, business plans, economic projections, anticipated future cash flows and marketplace data. Due to the nature of the transaction, goodwill is not deductible for tax purposes.

The Company is in the process of finalizing all purchase accounting adjustments related to the acquisition of Cascadia Motion. Certain estimated values for the acquisition, including goodwill, intangible assets and deferred taxes, are not yet finalized, and the preliminary purchase price allocations are subject to change as the Company completes its analysis of the fair value at the date of acquisition.

Due to its insignificant size relative to the Company, supplemental pro forma financial information of the combined entity for the current and prior reporting period is not provided.