v3.26.1
Net Income (Loss) Per Share Attributable to Cooper-Standard Holdings Inc. - Basic and Diluted Net Income Per Share Attributable (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]        
Net Income (Loss) Available to Common Stockholders, Diluted $ (18,843) $ (1,401) $ (52,146) $ 151
Basic weighted average shares of common stock outstanding 18,051,719 17,882,361 18,010,896 17,797,933
Dilutive effect of common stock equivalents 0 0 0 260,075
Diluted weighted average shares of common stock outstanding 18,051,719 17,882,361 18,010,896 18,058,008
Basic net income per share attributable to Cooper-Standard Holdings Inc. $ (1.04) $ (0.08) $ (2.90) $ 0.01
Diluted net income per share attributable to Cooper-Standard Holdings Inc. $ (1.04) $ (0.08) $ (2.90) $ 0.01
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 756,000 479,000 822,000 0