EARNINGS PER SHARE - Summary of Computation of Company's Basic and Diluted Net Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Numerator:
Net income (loss) attributable to Drilling Tools International stockholders	$ (1,540)	$ (1,669)
Denominator
Weighted-average common shares used in computing earnings per share - basic	35,116,094	35,592,737
Weighted-average effect of potentially dilutive securities:
Weighted-average common shares outstanding - diluted	35,116,094	35,592,737
Earnings (loss) per share - basic	$ (0.04)	$ (0.05)
Earnings (loss) per share - diluted	$ (0.04)	$ (0.05)
Time-based Stock Options
Weighted-average effect of potentially dilutive securities:
Effect of potentially dilutive stock options	0	0
Performance-based Stock Options
Weighted-average effect of potentially dilutive securities:
Effect of potentially dilutive stock options	0	0
Restricted Stock Units
Weighted-average effect of potentially dilutive securities:
Effect of potentially dilutive restricted stock units	0	0

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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