Document and Entity Information |
Oct. 28, 2019 |
|---|---|
| Cover [Abstract] | |
| Amendment Flag | true |
| Entity Central Index Key | 0001069878 |
| Document Type | 8-K/A |
| Document Period End Date | Oct. 28, 2019 |
| Entity Registrant Name | TREX COMPANY, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-14649 |
| Entity Tax Identification Number | 54-1910453 |
| Entity Address, Address Line One | 160 Exeter Drive |
| Entity Address, City or Town | Winchester |
| Entity Address, State or Province | VA |
| Entity Address, Postal Zip Code | 22603-8605 |
| City Area Code | 540 |
| Local Phone Number | 542-6300 |
| Entity Emerging Growth Company | false |
| Title of 12(b) Security | Common stock |
| Trading Symbol | TREX |
| Security Exchange Name | NYSE |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Amendment Description | On October 28, 2019, Trex Company, Inc. (Company) filed a Current Report on Form 8-K (Original Form 8-K) with the U.S. Securities and Exchange Commission to report that on October 28, 2019 the Company issued a press release announcing financial results for the quarterly period ended September 30, 2019. In addition to issuing a press release, the Company held a conference call on the same day to discuss financial and operating results. This Amendment No. 2 to the Original Form 8-K is filed to include a transcript of such conference call. |