XML 50 R31.htm IDEA: XBRL DOCUMENT

Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

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:
2017 Allowance for doubtful accounts		$	2,356			$	4			$	—			$	141			$	2,219

2016 Allowance for doubtful accounts		$	2,407			$	—			$	—			$	51			$	2,356

2015 Allowance for doubtful accounts		$	2,491			$	—			$	—			$	84			$	2,407


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:
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

2015 Inventory reserve		$	111,252			$	21,332			$	1,680			$	14,888			$	119,376


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:
2017 Valuation allowance		$	48,369			$	15,571			$	—			$	21			$	63,919

2016 Valuation allowance		$	43,039			$	5,413			$	—			$	83			$	48,369

2015 Valuation allowance		$	41,737			$	1,322			$	—			$	20			$	43,039