Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

Schedule II — Valuation and Qualifying Accounts


			Additions
			Charged
	Balance at		(Credited)		Charged to				Balance at
	Beginning		to Costs and		Other				End of
Deducted from asset accounts:	of Period		Expenses		Accounts		Deductions		Period
	(in thousands)
Year ended December 31, 2018
Allowance for doubtful accounts	$	270	$	—	$	—	$	—	$	270
Valuation allowance in net deferred tax assets		100,456		14,499		—		—		114,955
	$	100,726	$	14,499	$	—	$	—	$	115,225

Year ended December 31, 2017
Allowance for doubtful accounts	$	286	$	99	$	—	$	(115)	$	270
Valuation allowance in net deferred tax assets		104,744		(49,589)		45,301		—		100,456
	$	105,030	$	(49,490)	$	45,301	$	(115)	$	100,726

Year ended December 31, 2016
Allowance for doubtful accounts	$	206	$	171	$	—	$	(91)	$	286
Valuation allowance in net deferred tax assets		54,200		50,544		—		—		104,744
	$	54,406	$	50,715	$	—	$	(91)	$	105,030