Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Accounts Receivable

	March 31, 2019			December 31, 2018
	(in thousands)
Accounts receivable	$	59,067		$	54,342
Less:  Allowance for doubtful accounts	(379		)	(264		)
Total, net	$	58,688		$	54,078

Allowance for Doubtful Accounts

	Three months ended
	March 31, 2019		March 31, 2018
Allowance for doubtful accounts:	(in thousands)
Balance, beginning of period	$	264	$	119
Provisions for losses on accounts receivables, net of adjustments	115		(11		)
Balance, end of period	$	379	$	108