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

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Subsequent Events (Details)

v3.19.1

Subsequent Events (Details) $ / shares in Units, $ in Millions	May 14, 2019 $ / shares shares	May 13, 2019 USD ($) shares	Mar. 31, 2019 $ / shares shares	Sep. 30, 2018 $ / shares shares	Apr. 23, 2018 $ / shares
Subsequent Event [Line Items]
Common stock, par value (in dollars per share) \| $ / shares					$ 0.001
Subsequent Event
Subsequent Event [Line Items]
Conversion rate	1
Class B Common Stock
Subsequent Event [Line Items]
Common stock, par value (in dollars per share) \| $ / shares			$ 0.001	$ 0.001
Common stock, shares outstanding (in shares)			39,464,619	39,464,619
Class B Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Shares converted (in shares)	19,856,313
Common stock, par value (in dollars per share) \| $ / shares	$ 0.001
Common stock, shares outstanding (in shares)	19,608,306
Class A Common Stock
Subsequent Event [Line Items]
Common stock, par value (in dollars per share) \| $ / shares			$ 0.001	$ 0.001
Common stock, shares outstanding (in shares)			11,950,000	11,950,000
Class A Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in dollars per share) \| $ / shares	$ 0.001
Common stock, shares outstanding (in shares)	31,806,313
Director \| Restricted Stock \| Class A Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Common stock, shares issued (in shares)		212,056
Fair value of shares issued \| $		$ 2.7
Director \| Underlying shares on January 1, 2021 \| Restricted Stock \| Class A Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Award vesting percent		66.67%
Director \| Underlying shares on January 1, 2022 \| Restricted Stock \| Class A Common Stock \| Subsequent Event
Subsequent Event [Line Items]
Award vesting percent		33.33%

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