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Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

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:
2018 Allowance for doubtful accounts		$	2,219			$	—			$	20			$	566			$	1,673
2017 Allowance for doubtful accounts		$	2,356			$	4			$	—			$	141			$	2,219
2016 Allowance for doubtful accounts		$	2,407			$	—			$	—			$	51			$	2,356

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:
Inventory:
2018 Inventory reserve		$	102,896			$	11,242			$	368			$	13,727			$	100,779
2017 Inventory reserve		$	116,016			$	8,844			$	(126	)		$	21,838			$	102,896
2016 Inventory reserve		$	119,376			$	17,493			$	4,417			$	25,270			$	116,016

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:
2018 Valuation allowance		$	63,919			$	6,333			$	—			$	400			$	69,852
2017 Valuation allowance		$	48,369			$	15,571			$	—			$	21			$	63,919
2016 Valuation allowance		$	43,039			$	5,413			$	—			$	83			$	48,369