Schedule II Valuation Accounts

12 Months Ended

Dec. 31, 2017

Schedule II Valuation Accounts [Abstract]

Schedule II Valuation Accounts

Schedule II

Valuation Accounts

(In thousands)

	Balance at						Balance at
	Beginning		Net Additions				End of
	of Period		to Expense		Deductions*		Period
December 31, 2015
Accounts receivable, allowance for doubtful accounts	$	680	$	448	$	(580)	$	548
December 31, 2016
Accounts receivable, allowance for doubtful accounts	$	548	$	3,151	$	(2,359)	$	1,340
December 31, 2017
Accounts receivable, allowance for doubtful accounts	$	1,340	$	402	$	(302)	$	1,440

*Primarily consists of write-offs, net of recoveries and other adjustments