XML 26 R11.htm IDEA: XBRL DOCUMENT
v3.19.1

Accounts Receivable, Net and Revenue Concentrations | 12 Months Ended
--- | ---
Dec. 31, 2018
Receivables [Abstract] |
Accounts Receivable, Net and Revenue Concentrations | Accounts Receivable, Net and Revenue Concentrations Accounts receivable, net were as follows:
| December 31,
(In thousands) | 2018 |  | 2017
Trade receivables, gross | $ | 133,774 |  |  | $ | 142,299 |
Allowance for doubtful accounts | (1,121 | ) |  | (1,064 | )
Allowance for sales returns | (731 | ) |  | (562 | )
Net trade receivables | 131,922 |  |  | 140,673 |
Other | 12,767 |  |  | 10,905 |
Accounts receivable, net | $ | 144,689 |  |  | $ | 151,578 |
Allowance for Doubtful Accounts Changes in the allowance for doubtful accounts were as follows:
(In thousands) | Year Ended December 31,
2018 |  | 2017 |  | 2016
Balance at beginning of period | $ | 1,064 |  |  | $ | 904 |  |  | $ | 822 |
Additions to costs and expenses | 305 |  |  | 166 |  |  | 183 |
(Write-offs)/Foreign exchange effects | (248 | ) |  | (6 | ) |  | (101 | )
Balance at end of period | $ | 1,121 |  |  | $ | 1,064 |  |  | $ | 904 |
Significant Customers Net sales to the following customers totaled more than 10% of our net sales:
| Year Ended December 31,
| 2018 |  | 2017 |  | 2016
| $ (thousands) |  | % of Net Sales |  | $ (thousands) |  | % of Net Sales |  | $ (thousands) |  | % of Net Sales
Comcast Corporation | $ | 119,809 |  |  | 17.6 | % |  | $ | 159,829 |  |  | 23.0 | % |  | $ | 149,476 |  |  | 22.9 | %
AT&T | — |  | (1) | — |  | (1) | 77,888 |  |  | 11.2 |  |  | 74,704 |  |  | 11.5 |
(1) Sales associated with this customer did not total more than 10% of our net sales for the indicated period. Trade receivables associated with these significant customers that totaled more than 10% of our accounts receivable, net were as follows:
| December 31,
| 2018 |  | 2017
| $ (thousands) |  | % of Accounts Receivable, Net |  | $ (thousands) |  | % of Accounts Receivable, Net
Comcast Corporation | — |  | (1) | — | (1) | $ | 25,142 |  |  | 16.6 | %
(1) Trade receivables associated with this customer did not total more than 10% of our accounts receivable, net at December 31, 2018.

X
- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5162-111524 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5066-111524 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(6)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 + Details
Name: | us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration