Income (Loss) Per Share - Reconciliation of the Numerator and Denominator Used in the Calculation of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income (loss)	$ 46.9	$ 10.8	$ (673.2)	$ 43.2	$ 57.7	$ (630.0)
Less: net income attributable to non-controlling interests	0.1		0.0		0.1	0.3
Net income (loss) attributable to GoDaddy Inc.	$ 46.8		$ (673.2)		$ 57.6	$ (630.3)
Class A Common Stock
Denominator:
Weighted-average shares of Class A common stock outstanding—basic (in shares)	168,204		165,845		168,816	169,479
Weighted-average shares of Class A Common stock outstanding—diluted (in shares)	171,129		165,845		172,388	169,479
Net income (loss) attributable to GoDaddy Inc. per share of Class A common stock—basic (in USD per share)	$ 0.28		$ (4.06)		$ 0.34	$ (3.72)
Net income (loss) attributable to GoDaddy Inc. per share of Class A common stock—diluted (in USD per share)	$ 0.27		$ (4.06)		$ 0.33	$ (3.72)
Class B Common Stock
Denominator:
Effect of dilutive securities (in shares)	404		0		494	0
Stock options
Denominator:
Effect of dilutive securities (in shares)	1,272		0		1,326	0
RSUs, PSUs and ESPP shares
Denominator:
Effect of dilutive securities (in shares)	1,249		0		1,752	0