v3.26.1
SCHEDULE H, LINE 4i – SCHEDULE OF ASSETS (HELD AT END OF YEAR) (Details) - EBP 004
12 Months Ended
Dec. 31, 2025
USD ($)
EBP, Schedule of Asset Held for Investment [Line Items]  
Entity tax identification number 25-1615902
Plan number 004
Total Investments, at Fair Value  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   $ 1,835,171,134
Investment, Identifier [Axis]: Allspring Core Bond E1  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   35,351,598
Investment, Identifier [Axis]: Allspring Special Mid Cap Value Fund - Class R6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   9,448,085
Investment, Identifier [Axis]: American Funds EuroPacific Fund Class R6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   12,858,293
Investment, Identifier [Axis]: BlackRock High Yield Portfolio Fund K  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   15,349,340
Investment, Identifier [Axis]: Brokeragelink  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   48,560,404
Investment, Identifier [Axis]: Emerging Markets Stock Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   17,642,107
Investment, Identifier [Axis]: Equity Income Fund Admiral  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   43,977,864
Investment, Identifier [Axis]: Fidelity 500 Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   189,911,465
Investment, Identifier [Axis]: Fidelity Blue Chip Growth Commingled Pool  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   305,493,892
Investment, Identifier [Axis]: Fidelity Freedom Retire Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   5,613,684
Investment, Identifier [Axis]: Fidelity Freedom 2010 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   3,792,511
Investment, Identifier [Axis]: Fidelity Freedom 2015 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   11,203,840
Investment, Identifier [Axis]: Fidelity Freedom 2020 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   23,312,682
Investment, Identifier [Axis]: Fidelity Freedom 2025 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   71,552,033
Investment, Identifier [Axis]: Fidelity Freedom 2030 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   134,269,082
Investment, Identifier [Axis]: Fidelity Freedom 2035 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   148,261,954
Investment, Identifier [Axis]: Fidelity Freedom 2040 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   121,160,135
Investment, Identifier [Axis]: Fidelity Freedom 2045 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   90,242,407
Investment, Identifier [Axis]: Fidelity Freedom 2050 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   84,336,447
Investment, Identifier [Axis]: Fidelity Freedom 2055 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   63,536,388
Investment, Identifier [Axis]: Fidelity Freedom 2060 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   30,215,428
Investment, Identifier [Axis]: Fidelity Freedom 2065 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   12,801,345
Investment, Identifier [Axis]: Fidelity Freedom 2070 Fund K6  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   1,309,114
Investment, Identifier [Axis]: Fidelity Managed Income Portfolio II Class II  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   65,550,901
Investment, Identifier [Axis]: Fidelity Money Market Trust Retirement Government Money Market II  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   1,243,856
Investment, Identifier [Axis]: Fidelity Overseas Fund K  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   22,607,960
Investment, Identifier [Axis]: Fidelity Small Cap Index  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   19,715,192
Investment, Identifier [Axis]: Fidelity Low-Priced Stock K6 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   13,534,835
Investment, Identifier [Axis]: Fidelity® Small Cap Growth K6 Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   22,130,786
Investment, Identifier [Axis]: Mid Cap Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   47,733,955
Investment, Identifier [Axis]: Participant Loan Fund* (interest rates range from 3.25% to 10.5%)  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   37,595,443
Investment, Identifier [Axis]: Total Bond Market Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   27,736,745
Investment, Identifier [Axis]: Total International Stock Index Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   31,509,327
Investment, Identifier [Axis]: Wabtec Stock Fund  
EBP, Schedule of Asset Held for Investment [Line Items]  
  Fair Value   $ 65,612,036