v3.26.1
Schedule H, Line 4i – Schedule of Assets (Held At End of Year) (Details) - EBP 078
12 Months Ended
Dec. 31, 2025
USD ($)
EBP, Schedule of Asset Held for Investment [Line Items]  
Entity tax identification number 14-1682544
Plan number 078
Current Value $ 2,231,099,374
Notes receivable from Participants 22,560,622
Total assets held for investment $ 2,253,659,996
Minimum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Notes receivable from participants interest rate 3.25%
Maximum  
EBP, Schedule of Asset Held for Investment [Line Items]  
Notes receivable from participants interest rate 9.50%
Investment, Identifier [Axis]: AMETEK Stock Fund | AMETEK Stock Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value $ 152,167,874
Investment, Identifier [Axis]: American Funds EuroPacific Growth Fund | Registered Investment Company  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 33,145,623
Investment, Identifier [Axis]: FIAM U.S. Bond Index Commingled Pool Class D | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 49,610,861
Investment, Identifier [Axis]: Fidelity® Investments Money Market Treasury Portfolio - Class I | Registered Investment Company  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 1,357,112
Investment, Identifier [Axis]: Invesco Stable Value Trust Class A1 | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 1,760,393
Investment, Identifier [Axis]: Jennison Small/Mid Cap Equity Fund | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 39,989,818
Investment, Identifier [Axis]: Reliance Trust MetLife Stable Value Fund Series 25053 Class 25 | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 995,737
Investment, Identifier [Axis]: Spartan® 500 Index Pool Class C | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 289,722,891
Investment, Identifier [Axis]: Spartan® Extended Market Index Pool Class C | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 69,242,199
Investment, Identifier [Axis]: Spartan® Total International Index Pool Class C | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 31,580,513
Investment, Identifier [Axis]: State Street Real Asset Fund | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 4,019,242
Investment, Identifier [Axis]: T. Rowe Price Structured Research Common Trust Fund Class D | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 247,555,220
Investment, Identifier [Axis]: Vanguard Target Retirement 2020 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 71,651,015
Investment, Identifier [Axis]: Vanguard Target Retirement 2025 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 185,194,435
Investment, Identifier [Axis]: Vanguard Target Retirement 2030 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 231,967,863
Investment, Identifier [Axis]: Vanguard Target Retirement 2035 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 205,642,140
Investment, Identifier [Axis]: Vanguard Target Retirement 2040 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 135,289,326
Investment, Identifier [Axis]: Vanguard Target Retirement 2045 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 110,224,351
Investment, Identifier [Axis]: Vanguard Target Retirement 2050 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 91,169,987
Investment, Identifier [Axis]: Vanguard Target Retirement 2055 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 62,222,970
Investment, Identifier [Axis]: Vanguard Target Retirement 2060 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 29,588,110
Investment, Identifier [Axis]: Vanguard Target Retirement 2065 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 14,518,748
Investment, Identifier [Axis]: Vanguard Target Retirement 2070 Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 3,216,174
Investment, Identifier [Axis]: Vanguard Target Retirement Income Trust I | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 49,358,005
Investment, Identifier [Axis]: Voya  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value $ 109,831,367
Investment, Identifier [Axis]: Voya Retirement Insurance Annuity Company Wrap Contract #60498 | Interest rate of 2.49% at December 31, 2025  
EBP, Schedule of Asset Held for Investment [Line Items]  
Investments interest rate 2.49%
Current Value $ 5,391,866
Investment, Identifier [Axis]: Voya Stabilizer Fund (Separate Account for Ametek No. 920) | Separate Account  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value 104,439,501
Investment, Identifier [Axis]: WTC-CIF II Core Bond Plus (Series 2) Portfolio | Common/Collective Trust  
EBP, Schedule of Asset Held for Investment [Line Items]  
Current Value $ 10,077,400