v3.26.1
Fair Value Measurements - Schedule of Plan Assets at Fair Value (Details) - EBP 002 - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments $ 2,317,608 $ 2,068,059
Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 293,099 281,476
Teledyne Technologies Incorporated common stock fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 94,047 93,372
Self-directed brokerage    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 98,720 81,754
Collective trusts    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 1,831,742 1,611,457
Total    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 485,866 456,602
Total | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 293,099 281,476
Total | Teledyne Technologies Incorporated common stock fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 94,047 93,372
Total | Self-directed brokerage    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 98,720 81,754
Level 1    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 485,866 456,602
Level 1 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 293,099 281,476
Level 1 | Teledyne Technologies Incorporated common stock fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 94,047 93,372
Level 1 | Self-directed brokerage    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 98,720 81,754
Level 2    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 2 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 2 | Teledyne Technologies Incorporated common stock fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 2 | Self-directed brokerage    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 3    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 3 | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 3 | Teledyne Technologies Incorporated common stock fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
Level 3 | Self-directed brokerage    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments 0 0
NAV | Collective trusts    
EBP, Investment, Fair Value and NAV [Line Items]    
Total investments $ 1,831,742 $ 1,611,457