Summary of Significant Accounting Policies (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Significant Estimates Used by Management in Determining Fair Values of Company's Reporting Units | The following table presents the significant estimates used by management in determining the fair values of Quanta’s reporting units at December 31, 2017, 2016 and 2015:
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Fair Value Measurement Inputs for Acquisition | The following table presents the significant estimates used by management in determining the fair values of customer relationships associated with acquisitions in the years ended December 31, 2017, 2016 and 2015:
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