Accounts Receivable, Net and Revenue Concentrations (Tables)

6 Months Ended

Jun. 30, 2017

Receivables [Abstract]

Schedule of Accounts Receivable and Allowance for Doubtful Accounts

Accounts receivable, net were as follows:

(In thousands)	June 30, 2017			December 31, 2016
Trade receivables, gross	$	140,845		$	120,965
Allowance for doubtful accounts	(950		)	(904		)
Allowance for sales returns	(480		)	(539		)
Net trade receivables	139,415			119,522
Other	8,323			5,070
Accounts receivable, net	$	147,738		$	124,592

Allowance for Doubtful Accounts

Changes in the allowance for doubtful accounts were as follows:

(In thousands)	Six Months Ended June 30,
	2017			2016
Balance at beginning of period	$	904		$	822
Additions (reductions) to costs and expenses	81			116
(Write-offs)/Foreign exchange effects	(35		)	4
Balance at end of period	$	950		$	942

Schedule of Significant Customers to Net Sales

Net sales to the following customers totaled more than 10% of our net sales:

	Three Months Ended June 30,
	2017				2016
	$ (thousands)		% of Net Sales		$ (thousands)		% of Net Sales
Comcast Corporation	$	42,951	24.2	%	$	36,366	21.3	%
DIRECTV	17,826		10.0		20,035		11.7

	Six Months Ended June 30,
	2017				2016
	$ (thousands)		% of Net Sales		$ (thousands)		% of Net Sales
Comcast Corporation	$	85,198	25.1	%	$	75,975	23.6	%
DIRECTV	34,458		10.2		36,854		11.5

Schedule of Significant Customers to Accounts Receivable

Trade receivables associated with these significant customers that totaled more than 10% of our accounts receivable, net were as follows:

	June 30, 2017				December 31, 2016
	$ (thousands)		% of Accounts Receivable, Net		$ (thousands)		% of Accounts Receivable, Net
Comcast Corporation	$	30,491	20.6	%	$	23,716	19.0	%
DIRECTV	15,718		10.6		12,878		10.3