Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2023

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

TERADYNE, INC.

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

Column A	Column B		Column C		Column D			Column E		Column F
Description	Balance at Beginning of Period		Additions Charged to Cost and Expenses		Other			Deductions		Balance at End of Period
	(in thousands)
Valuation reserve deducted in the balance sheet    from the asset to which it applies:
Accounts receivable:
2023 Allowance for credit losses	$	1,955	$	301	$	23		$	291	$	1,988
2022 Allowance for credit losses	$	2,012	$	500	$	(6	)	$	551	$	1,955
2021 Allowance for credit losses	$	2,034	$	500	$	(27	)	$	495	$	2,012

Column A	Column B		Column C		Column D		Column E		Column F
Description	Balance at Beginning of Period		Additions Charged to Cost and Expenses		Other		Deductions		Balance at End of Period
	(in thousands)
Valuation reserve deducted in the balance sheet    from the asset to which it applies:
Deferred taxes:
2023 Valuation allowance	$	103,807	$	5,759	$	59	$	374	$	109,251
2022 Valuation allowance	$	97,170	$	7,652	$	21	$	1,036	$	103,807
2021 Valuation allowance	$	84,962	$	13,502	$	—	$	1,294	$	97,170