Revenue and Accounts Receivable, Net (Tables)

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

Pattern of Revenue Recognition

The pattern of revenue recognition was as follows:

	Three Months Ended March 31,
(In thousands)	2020		2019
Goods and services transferred at a point in time	$	117,058	$	136,338
Goods and services transferred over time	34,720		47,825
Net sales	$	151,778	$	184,163

Revenue from External Customers by Geographic Areas

Our net sales to external customers by geographic area were as follows:

	Three Months Ended March 31,
(In thousands)	2020		2019
United States	$	74,381	$	98,936
Asia (excluding PRC)	27,825		24,076
Europe	20,502		23,299
People's Republic of China	17,517		22,308
Latin America	4,640		7,787
Other	6,913		7,757
Total net sales	$	151,778	$	184,163

Net Sales to Significant Customers

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

	Three Months Ended March 31,
	2020						2019
	$ (thousands)			% of Net Sales			$ (thousands)		% of Net Sales
Comcast Corporation	$	32,935		21.7	%		$	29,246	15.9	%
DISH Network Corporation	—		(1)	—		(1)	$	19,678	10.7	%

⁽¹⁾ Sales associated with this customer did not total more than 10% of our net sales for the indicated period.

Accounts Receivable, Net and Changes in the Allowance for Doubtful Accounts

Changes in the allowance for bad debts were as follows:

(In thousands)	Three Months Ended March 31,
	2020			2019
Balance at beginning of period	$	1,492		$	1,121
Additions to costs and expenses	237			3
(Write-offs)/Foreign exchange effects	(48		)	(4		)
Balance at end of period	$	1,681		$	1,120

Accounts receivable, net were as follows:

(In thousands)	March 31, 2020			December 31, 2019
Trade receivables, gross	$	129,316		$	130,888
Allowance for bad debts	(1,681		)	(1,492		)
Allowance for sales returns	(495		)	(623		)
Net trade receivables	127,140			128,773
Other	9,954			10,425
Accounts receivable, net	$	137,094		$	139,198

Trade Receivables Associated with Significant Customers

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

	March 31, 2020						December 31, 2019
	$ (thousands)			% of Accounts Receivable, Net			$ (thousands)			% of Accounts Receivable, Net
Comcast Corporation	$	28,423		20.7	%		—		(1)	—		(1)
DISH Network Corporation	—		(1)	—		(1)	$	14,677		10.5	%

⁽¹⁾  Trade receivables associated with this customer did not total more than 10% of our accounts receivable, net for the indicated period.