| Document and Entity Information | Nov. 01, 2020 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001237746 |
| Document Type | 8-K |
| Document Period End Date | Nov. 1, 2020 |
| Entity Registrant Name | Endurance International Group Holdings, Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-36131 |
| Entity Tax Identification Number | 46-3044956 |
| Entity Address, Address Line One | 10 Corporate Drive |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Burlington |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01803 |
| City Area Code | (781) |
| Local Phone Number | 852-3200 |
| Written Communications | false |
| Soliciting Material | true |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.0001 par value |
| Trading Symbol | EIGI |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
