XML 34 R22.htm IDEA: XBRL DOCUMENT v3.10.0.1
Seasonality
9 Months Ended
Sep. 30, 2018
Text Block [Abstract]  
Seasonality
17.

SEASONALITY

The operating results for Trex Residential Products have historically varied from quarter to quarter. Seasonal, erratic or prolonged adverse weather conditions in certain geographic regions reduce the level of home improvement and construction activity and can shift demand for its products to a later period. As part of its normal business practice and consistent with industry practice, Trex Residential Products has historically offered incentive programs to its distributors and dealers to build inventory levels before the start of the prime deck-building season in order to ensure adequate availability of its product to meet anticipated seasonal consumer demand. The seasonal effects are often offset by the positive effect of the incentive programs. The operating results for Trex Commercial Products have not historically varied from quarter to quarter as a result of seasonality; however, they are driven by the timing of individual projects, which may vary each quarterly period.