Document and Entity Information |
Nov. 05, 2019 |
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| Cover [Abstract] | |
| Entity Registrant Name | TREX CO INC |
| Amendment Flag | false |
| Entity Central Index Key | 0001069878 |
| Document Type | 8-K |
| Document Period End Date | Nov. 05, 2019 |
| Entity Incorporation State 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 |
| Security 12b Title | 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 |
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
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- Definition Address Line 1 such as Attn, Building Name, Street Name No definition available.
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