Change in Accounting Principle For Inventory Valuation - Summary of Consolidated Statements of Changes in Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Total stockholders' equity	$ 887,124	$ 1,034,264	$ 887,124	$ 741,599	$ 544,542
Net income	21,826	190,415	238,446	204,119
Retained earnings
Total stockholders' equity	1,599,432	1,789,847	1,599,432	1,360,986	$ 1,156,867
Net income		$ 190,415	238,446	204,119
As Previously Reported
Total stockholders' equity	850,142		850,142
Net income	9,772		226,392	205,384
Effect of Change in Accounting Principle
Total stockholders' equity	36,982		36,982
Net income	$ 12,054		$ 12,054	$ (1,265)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

+ References

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+ Details

TREX CO INC 10-K