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Business Acquisitions - Proforma Revenue and Net Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2019 | Sep. 30, 2018 | May 15, 2018
Business Acquisition [Line Items] |  |  |  |  |
Long-term debt |  |  | $ 52,161 | $ 63,264 |
Senior Notes |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Long-term debt |  |  | $ 46,500 | $ 57,300 |
Scruggs Company |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Pro forma revenues | $ 206,924 | $ 519,735 |  |  |
Pro forma net income | $ 15,379 | $ 40,653 |  |  |
Scruggs Company | Senior Notes |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Long-term debt |  |  |  |  | $ 22,000

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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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