XML 103 R37.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2

Segments and Major Customers (Tables)

12 Months Ended

Dec. 31, 2019

Concentration Risk

Revenue from external customer by geographic regions

Revenue from customers in the geographic regions based on the location of contracting parties is as follows:

	Years Ended December 31,
	2019				2018				2017
	(In thousands)
USA	$	134,526			$	129,567			$	165,263
Taiwan	24,118				21,749				9,953
South Korea	3,583				13,421				115,811
Japan	11,877				23,222				23,378
Europe	10,262				15,668				22,597
Canada	3,554				4,960				4,373
Singapore	21,751				19,140				22,554
Asia-Other	14,356				3,474				29,167
Total	$	224,027			$	231,201			$	393,096

Accounts receivable

Concentration Risk

Schedule of customer accounts representing 10% or more than 10% of total revenue

Accounts receivable from the Company’s major customers representing 10% or more of total accounts receivable at December 31, 2019 and 2018, respectively, was as follows:

	As of December 31,
	2019			2018
Customer 1	19	%		39	%
Customer 2	14	%		*
Customer 3	*			12	%

_________________________________________

*    Customer accounted for less than 10% of total accounts receivable in the period

Sales, net

Concentration Risk

Schedule of customer accounts representing 10% or more than 10% of total revenue

Revenue from the Company’s major customers representing 10% or more of total revenue for the years ended December 31, 2019, 2018 and 2017 were as follows:

	Years Ended December 31,
	2019			2018			2017
Customer A	*			*			17	%
Customer B	10	%		*			13	%
Customer C	*			*			13	%
Customer D	14	%		15	%		*
Customer E	*			11	%		*

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599

+ Details

Name:	us-gaap_ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592

+ Details

Name:	us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=rmbs_SalesNetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: