| Document and Entity Information | Jun. 17, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jun. 17, 2021 |
| Current Fiscal Year End Date | --12-31 |
| Entity Registrant Name | BALCHEM CORP |
| Entity Incorporation, State or Country Code | MD |
| Entity File Number | 001-13648 |
| Entity Tax Identification Number | 13-2578432 |
| Entity Address, Address Line One | 52 SUNRISE PARK ROAD |
| Entity Address, City or Town | NEW HAMPTON |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10958 |
| City Area Code | 845 |
| Local Phone Number | 326-5600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000009326 |
| Title of 12(b) Security | Common Stock, par value $.06-2/3 per share. |
| Trading Symbol | BCPC |
| Security Exchange Name | NASDAQ |
