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Fair value of financial instruments (Tables)

9 Months Ended

Sep. 30, 2015

Estimated Fair Value of Private Placement Warrants Publicly Traded Stock Pricing Approach

As of September 30, 2015 and December 31, 2014, the Company estimated the fair value of its liability for Private Placement Warrants with a publicly traded stock pricing approach using the Black-Scholes option pricing model. The inputs of the Black-Scholes option pricing model included the following:

		September 30, 2015				December 31, 2014
Market value of the Company’s common stock		$	22.71			$	51.61
Exercise price		$	13.00			$	13.00
Risk-free interest rate			0.12	%			0.39	%
Estimated price volatility			55.00	%			55.00	%
Contractual term			0.58 years				1.33 years
Dividend yield			—				—

Summary of Change in Estimated Fair Value of Company's Level 3 Financial Instrument

The following table summarizes the change in the estimated fair value of the Company’s Level 3 Private Placement Warrants liability in the nine months ended September 30, 2015:

Balance at December 31, 2014		$	11,036
Fair value of private placement warrants exercised			(255	)
Change in the value of private placement warrants			(8,040	)
Balance at September 30, 2015		$	2,741

Financial Liability Measured at Fair Value on Recurring Basis

The following table summarizes fair value measurements by level as of September 30, 2015, for the Company’s level 3 financial liabilities measured at fair value on a recurring basis:

		Level 1				Level 2				Level 3
Private placement warrants liability			—				—			$	2,741
Contingent consideration			—				—				8,690

The following table summarizes fair value measurement by level as of December 31, 2014, for the Company’s level 3 financial liability measured at fair value on a recurring basis:

		Level 1				Level 2				Level 3
Private placement warrants liability			—				—			$	11,036

Contingent Consideration [Member]

Summary of Change in Estimated Fair Value of Company's Level 3 Financial Instrument

The following table summarizes the change in the estimated fair value of the Company’s Level 3 contingent consideration liability in the nine months ended September 30, 2015:

Balance at December 31, 2014		$	—
Powertrain Date of Acquisition			8,200
Bi-Phase Date of Acquisition			540
Change in the value of contingent consideration			(50	)
Balance at September 30, 2015		$	8,690

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Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258



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-Publisher FASB



-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



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Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



-Paragraph 3



-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258



Reference 2: http://www.xbrl.org/2003/role/presentationRef



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-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)



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