Schedule II - Valuation Accounts

12 Months Ended

Dec. 31, 2018

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation Accounts

Schedule II

Valuation Accounts

Allowance for Doubtful Accounts

(in thousands)

	Fiscal Year Ended December 31,
	2018			2017			2016
Balance at beginning of period	$	809		$	1,069		$	988
Additions—charged to expense	1,620			290			1,107
Deductions—bad debts written off, net of recoveries	(1,498		)	(550		)	(1,026		)
Balance at end of period	$	931		$	809		$	1,069