Debt (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Components of Convertible Senior Notes

The below tables represent the key components of Teradyne’s convertible senior notes:

	For the Years Ended
	December 31, 2023		December 31, 2022
	(in thousands)
Debt principal	$	—	$	50,228
Unamortized debt issuance fees		—		113
Net carrying amount of convertible debt	$	—	$	50,115

	For the Years Ended
	December 31, 2023		December 31, 2022
	(in thousands)
Contractual interest expense on the coupon	$	312	$	732
Amortization of the issuance fees recognized as interest expense		113		209
Total interest expense on the convertible debt	$	425	$	941