| Cover | Nov. 30, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 30, 2021 |
| Entity Registrant Name | UWM Holdings Corporation |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39189 |
| Entity Tax Identification Number | 82-2124167 |
| Entity Address, Address Line One | 585 South Boulevard E. |
| Entity Address, City or Town | Pontiac, |
| Entity Address, State or Province | MI |
| Entity Address, Postal Zip Code | 48341 |
| City Area Code | (800 |
| Local Phone Number | 981-8898 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001783398 |
| Document Information [Line Items] | |
| Document Period End Date | Nov. 30, 2021 |
| Class A Common Stock, par value $0.0001 per share | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | UWMC |
| Security Exchange Name | NYSE |
| Warrants, each warrant exercisable for one share of Class A Common Stock | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants, each warrant exercisable for one share of Class A Common Stock |
| Trading Symbol | UWMCWS |
| Security Exchange Name | NYSE |
