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Acquisitions - Additional Information (Detail) $ in Thousands |  | 1 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 01, 2019 USD ($) Location shares | Apr. 02, 2019 USD ($) Location shares | Sep. 30, 2019 USD ($)
Business Acquisition [Line Items] |  |  |
Proceeds from non-controlling interest for Business Acquisition |  |  | $ 17,000
Peirce Phelps PPI [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Number of locations in which the company operates | Location | 19 |  |
Business combination recognized identifiable assets acquired and liabilities assumed net | $ 85,000 |  |
Business combination cash transferred | $ 10,000 |  |
Number of shares issuable | shares | 372,543 |  |
Fair value of equity shares issued or issuable | $ 58,638 |  | 58,638
Proceeds from non-controlling interest for Business Acquisition | 17,000 |  |
Preliminary fair value estimate of working capital acquired | $ 59,000 |  |
Dunphey Associates Supply Co [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Number of locations in which the company operates | Location |  | 7 |
Business combination cash transferred |  | $ 16,781 |
Fair value of equity shares issued or issuable |  | $ 7,450 | $ 7,450
Stock issued for acquisition | shares |  | 50,952 |

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