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Segment Information (Tables)
3 Months Ended
Mar. 31, 2020
Segment Information  
Summary of information about reportable segments

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Three Months Ended March 31, 2020

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Mechanical Services

    

Electrical Services

    

Corporate

    

Consolidated

Revenue

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$

565,464

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$

134,667

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$

—

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$

700,131

Gross Profit

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$

108,922

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$

8,171

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$

—

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$

117,093

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Three Months Ended March 31, 2019

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Mechanical Services

    

Electrical Services

    

Corporate

    

Consolidated

Revenue

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$

534,585

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$

3,888

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$

—

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$

538,473

Gross Profit

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$

105,852

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$

813

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$

—

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$

106,665