Earnings Per Share - Reconciliation of the Shares Used in EPS Calculation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income (loss) attributable to ChampionX	$ 113,299	$ (743,930)	$ 52,164
Weighted-average number of shares outstanding (in shares)	201,579	148,370	77,427
Dilutive effect of stock-based compensation (in shares)	6,746	0	197
Total shares and dilutive securities (in shares)	208,325	148,370	77,624
Basic earnings per share attributable to ChampionX (in dollars per share)	$ 0.56	$ (5.01)	$ 0.67
Diluted earnings per share attributable to ChampionX (in dollars per share)	$ 0.54	$ (5.01)	$ 0.67