Earnings Per Share - Calculation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Net income (loss)	$ 180,531	$ (138,613)
Net income (loss) attributable to non-controlling interests	171,801	(126,672)
Net income (loss) attributable to UWM Holdings Corporation	8,730	(11,941)
Numerator:
Net income (loss) attributable to Class A common shareholders	8,730	(11,941)
Net income (loss) attributable to Class A common shareholders - diluted	$ 142,860	$ (11,941)
Weighted average shares outstanding:
Weighted average shares of Class A common stock outstanding - basic (in shares)	94,365,991	92,920,794
Weighted average shares of Class A common stock outstanding - diluted (in shares)	1,598,647,205	92,920,794
Earnings (loss) per share of Class A common stock outstanding - basic (in usd per share)	$ 0.09	$ (0.13)
Earnings (loss) per share of Class A common stock outstanding - diluted (in usd per share)	$ 0.09	$ (0.13)