v3.25.4
Earnings (Loss) Per Share - Schedule of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Net income (loss)   $ (40,254,000) $ 427,585,000 $ (23,083,000)
Less: Net income (loss) attributable to non-controlling interests $ (1,456,000) (1,447,000) 3,207,000 (1,456,000)
Net income (loss) attributable to Clearwater Analytics Holdings, Inc. - basic   (38,807,000) 424,378,000 (21,627,000)
Net loss attributable to Clearwater Analytics Holdings, Inc. - diluted   (38,807,000) 424,378,000 (21,627,000)
Numerator:        
Allocation of net income (loss) attributable to Clearwater Analytics, Inc.   $ (38,807,000) $ 424,378,000 $ (21,627,000)
Denominator:        
Weighted average number of shares of Class A and Class D common stock outstanding - basic (in shares)   271,323,558 219,316,625 199,691,873
Weighted average number of shares of Class A and Class D common stock outstanding - diluted (in shares)   271,323,558 254,362,539 199,691,873
Basic net earnings (loss) per share attributable to Class A and Class D common stockholders (in USD per share)   $ (0.14) $ 1.93 $ (0.11)
Diluted net earnings per share attributable to Class A and Class D common stockholders (in USD per share)   $ (0.14) $ 1.68 $ (0.11)
Class A        
Numerator:        
Allocation of net income (loss) attributable to Clearwater Analytics, Inc.   $ (37,732,000) $ 309,418,000 $ (9,211,000)
Allocation of undistributed earnings     $ 427,585,000  
Denominator:        
Weighted average number of shares of Class A and Class D common stock outstanding - basic (in shares)   263,804,771 159,906,046 85,048,639
Weighted average number of shares of Class A and Class D common stock outstanding - diluted (in shares)     254,362,539  
Basic net earnings (loss) per share attributable to Class A and Class D common stockholders (in USD per share)   $ (0.14) $ 1.93 $ (0.11)
Diluted net earnings per share attributable to Class A and Class D common stockholders (in USD per share)     $ 1.68  
Class A | Class B and Class C common stock        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     26,799,077  
Class A | Stock options of Clearwater Analytics Holdings, Inc.        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     5,615,242  
Class A | RSUs of Clearwater Analytics Holdings, Inc.        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     2,604,418  
Class A | ESPP of Clearwater Analytics Holdings, Inc.        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     27,177  
Class A | Conversion Of Potentially Dilutive Equivalents        
Numerator:        
Reallocation of earnings as a result of conversion of common stock     $ 18,297,000  
Class A | Class D Common Conversion Into Class A Common        
Numerator:        
Reallocation of earnings as a result of conversion of common stock     $ 99,870,000  
Denominator:        
Dilutive effect of conversion of common stock (in shares)     59,410,579  
Class D        
Numerator:        
Allocation of net income (loss) attributable to Clearwater Analytics, Inc.   $ (1,075,000) $ 114,960,000 $ (12,416,000)
Allocation of undistributed earnings     $ 99,870,000  
Denominator:        
Weighted average number of shares of Class A and Class D common stock outstanding - basic (in shares)   7,518,787 59,410,579 114,643,234
Weighted average number of shares of Class A and Class D common stock outstanding - diluted (in shares)     59,410,579  
Basic net earnings (loss) per share attributable to Class A and Class D common stockholders (in USD per share)   $ (0.14) $ 1.93 $ (0.11)
Diluted net earnings per share attributable to Class A and Class D common stockholders (in USD per share)     $ 1.68  
Class D | Class B and Class C common stock        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     0  
Class D | Stock options of Clearwater Analytics Holdings, Inc.        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     0  
Class D | RSUs of Clearwater Analytics Holdings, Inc.        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     0  
Class D | ESPP of Clearwater Analytics Holdings, Inc.        
Denominator:        
Dilutive effect of share-based payment arrangements (in shares)     0  
Class D | Conversion Of Potentially Dilutive Equivalents        
Numerator:        
Reallocation of earnings as a result of conversion of common stock     $ (15,090,000)  
Class D | Class D Common Conversion Into Class A Common        
Numerator:        
Reallocation of earnings as a result of conversion of common stock     $ 0  
Denominator:        
Dilutive effect of conversion of common stock (in shares)     0