v3.26.1
Loss Per Share - Schedule of Net Loss Per Share, Basic and Diluted (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net loss $ (7,452) $ (192,354) $ (9,265) $ (155,093) $ (199,806) $ (164,358)
Less: Net loss attributable to noncontrolling interests (2,030)   (1,714)   (55,763) (49,579)
Net loss attributable to Definitive Healthcare Corp. (5,422)   (7,551)   (144,043) (114,779)
Basic and diluted net loss per share attributable to common stockholders            
Allocation of net loss attributable to Definitive Healthcare Corp. $ (5,422)   $ (7,551)   $ (144,043) $ (114,779)
Weighted average number of shares of Class A outstanding 105,810,516   106,815,740   105,245,928 109,782,640
Net loss per share, basic $ (0.05)   $ (0.07)   $ (1.37) $ (1.05)
Net loss per share, diluted $ (0.05)   $ (0.07)   $ (1.37) $ (1.05)
Common Class A [Member]            
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]            
Net loss $ (7,452)   $ (9,265)   $ (199,806) $ (164,358)
Less: Net loss attributable to noncontrolling interests (2,030)   (1,714)   (55,763) (49,579)
Net loss attributable to Definitive Healthcare Corp. (5,422)   (7,551)   (144,043) (114,779)
Basic and diluted net loss per share attributable to common stockholders            
Allocation of net loss attributable to Definitive Healthcare Corp. $ (5,422)   $ (7,551)   $ (144,043) $ (114,779)
Weighted average number of shares of Class A outstanding 105,810,516   106,815,740   105,245,928 109,782,640
Net loss per share, basic $ (0.05)   $ (0.07)   $ (1.37) $ (1.05)
Net loss per share, diluted $ (0.05)   $ (0.07)   $ (1.37) $ (1.05)