| Cover | Aug. 04, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 04, 2022 |
| Entity Registrant Name | Installed Building Products, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-36307 |
| Entity Tax Identification Number | 45-3707650 |
| Entity Address, Address Line One | 495 South High Street, Suite 50 |
| Entity Address, City or Town | Columbus |
| Entity Address, State or Province | OH |
| Entity Address, Postal Zip Code | 43215 |
| City Area Code | 614 |
| Local Phone Number | 221-3399 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | IBP |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001580905 |
| Amendment Flag | false |
