EMPLOYEE BENEFIT PLANS - Multiemployer Defined Benefit Plan (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Multiemployer Plans [Line Items]
Percentage that plans in the red zone are generally funded, maximum	65.00%
Percentage that plans in the yellow zone are generally funded, maximum	80.00%
Percentage that plans in the green zone are generally funded, minimum	80.00%
Percentage increase in contribution rate	4.00%
Central States, Southeast and Southwest Areas Pension Fund
Multiemployer Plans [Line Items]
Contributions of Balchem Corporation	$ 614	$ 594	$ 576

Percentage increase in contribution rate from the prior period to the current period.

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- Definition

Percentage that plans in the green zone are generally funded, minimum.

+ References

No definition available.

+ Details

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- Definition

Percentage that plans in the red zone are generally funded, maximum.

+ References

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- Definition

Percentage that plans in the yellow zone are generally funded, maximum.

+ References

No definition available.

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- Definition

Amount of contributions made to multiemployer plan by employer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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