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

Significant Accounting Policies (Details)

v3.23.1

Significant Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended
Significant Accounting Policies (Details) - USD ($)	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Sep. 30, 2022
Concentration Risk [Line Items]
Restricted cash	$ 119,000		$ 119,000		$ 28,000
Restricted investments	11,303,000		11,303,000		6,866,000
Debt securities, available-for-sale, intent impairments			0	$ 0
Debt securities, available-for-sale, allowance for credit loss	$ 0	$ 0	$ 0	$ 0
Maximum
Concentration Risk [Line Items]
Restricted cash					$ 100,000
Revenues \| Customer Concentration Risk \| Various Departments Of Transportation
Concentration Risk [Line Items]
Concentration risk percentage	29.80%	30.80%	30.90%	32.30%
Revenues \| Customer Concentration Risk \| Florida Department of Transportation
Concentration Risk [Line Items]
Concentration risk percentage	11.30%	12.50%	9.60%	11.20%
Private \| Revenues \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	42.10%	42.10%	40.40%	40.50%
Public \| Revenues \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	57.90%	57.90%	59.60%	59.50%

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