RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS (Details) - 401(k) PROFIT SHARING PLAN - USD ($)	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS
Investments - at fair value	$ 247,523,763	$ 213,599,896
Revenue sharing amounts used to offset plan expenses	12,350
Undistributed administrative revenues	19,166	6,586
Participant Contributions Transferred Late to the Plan	814,106
Fidelity Management Trust Company
RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS
Revenue sharing amounts used to offset plan expenses	12,350
Undistributed administrative revenues	19,166	6,586
Participant Contributions Transferred Late to the Plan	$ 814,106	$ 0
Merit Medical Systems, Inc. common stock \| Company
RELATED PARTY AND PARTY-IN-INTEREST TRANSACTIONS
Number of shares	479,060	495,990
Investments - at fair value	$ 42,224,320	$ 47,972,130
Cost	23,386,636	$ 23,456,293
Purchases of shares	1,547,254
Sales of shares	$ 3,189,279

Revenue sharing amounts used to offset plan expenses under (employee benefit plan (EBP)).

No definition available.

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Amount of undistributed administrative revenue balance available for future plan expenses under (employee benefit plan (EBP)).

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No definition available.

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Cost of investment, excluding plan interest in master trust, acquired by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Cost of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract.

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Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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Number of shares or units of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Amount of selling price for investment, excluding plan interest in master trust, sold by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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Amount of delinquent participant contribution transferred late to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

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