Construction Partners, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Subsequent Events (Details)

v3.20.2

Subsequent Events (Details)				1 Months Ended	9 Months Ended
Subsequent Events (Details)	Jul. 30, 2020 USD ($)	May 01, 2020 USD ($)	Apr. 30, 2020 USD ($)	Aug. 06, 2020 shares	Jun. 30, 2020 USD ($) shares	Jul. 29, 2020 USD ($)	Sep. 30, 2019 USD ($) shares
Subsequent Event [Line Items]
Long-term debt					$ 66,390,000		$ 50,263,000
Subsequent Event
Subsequent Event [Line Items]
Conversion rate				1
Subsequent Event \| Minimum
Subsequent Event [Line Items]
Debt fee rate	0.70%
Subsequent Event \| Maximum
Subsequent Event [Line Items]
Debt fee rate	0.75%
Subsequent Event \| Revolving Credit Facility
Subsequent Event [Line Items]
Line of Credit						$ 30,000,000.0
Line of credit facility, increase (decrease)	$ 20,000,000.0
Unused capacity, commitment fee percentage	0.20%
Subsequent Event \| Letter of Credit
Subsequent Event [Line Items]
Debt fee rate	0.20%
Class B Common Stock
Subsequent Event [Line Items]
Common stock, shares outstanding (in shares) \| shares					18,351,381		19,184,009
Class B Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Conversion of stock, shares converted (in shares) \| shares				445,520
Common stock, shares outstanding (in shares) \| shares				17,905,861
Class A Common Stock
Subsequent Event [Line Items]
Conversion rate					1
Common stock, shares outstanding (in shares) \| shares					33,430,364		32,597,736
Class A Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Common stock, shares outstanding (in shares) \| shares				33,875,884
BBVA Term Loan
Subsequent Event [Line Items]
Long-term debt		$ 17,550,000	$ 48,550,000		$ 66,100,000		$ 44,700,000
Debt instrument, periodic principal payments		$ 1,200,000	$ 2,050,000
BBVA Term Loan \| Subsequent Event
Subsequent Event [Line Items]
Long-term debt						$ 66,100,000
Debt increase	$ 30,000,000.0
Debt instrument, fee amount	$ 600
Basis spread	1.50%

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