Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2019

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

Schedule of Valuation and Qualifying Accounts Disclosure

Schedule II — Valuation and Qualifying Accounts (in thousands)

Column A	Column B		Column C				Column D		Column E
			Additions
			(1)		(2)
	Balance at the Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts				Balance at End of Period
Description							-Deductions-
					Note (A)		Note (B)
Deferred tax valuation allowance:
Year ended December 31, 2019	$	15,084	$	36,658	$	—	$	889	$	50,853
Year ended December 31, 2018	$	12,857	$	—	$	3,023	$	796	$	15,084
Year ended December 31, 2017	$	10,730	$	9,513	$	72,170	$	79,556	$	12,857

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Note (A)

For deferred tax valuation allowance amounts in 2018 and 2017 relate primarily to changes in foreign tax credit carryforwards.

Note (B)

For deferred tax valuation allowance, the amount in 2017 primarily includes certain excess tax benefits resulting from the adoption of ASU 2016-09, offset by the effects of the 2017 Tax Act. The amounts in 2019, 2018 and 2017 also include decreases in foreign tax credit and R&D credit carryforwards.