XML 45 R31.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Intangible Assets and Goodwill (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill information by reportable units | The following tables present goodwill information for each of the reportable segments for the years ended December 31, 2018 and December 31, 2017:
Reportable Segment: | December 31, 2017 |  | Impairment Charge of Goodwill |  | Effect of Exchange Rates (1) |  | December 31, 2018
| (In thousands)
MID | $ | 66,643 |  |  | $ | — |  |  | $ | — |  |  | $ | 66,643 |
RSD | 143,018 |  |  | — |  |  | (2,483 | ) |  | 140,535 |
Total | $ | 209,661 |  |  | $ | — |  |  | $ | (2,483 | ) |  | $ | 207,178 |
(1) Effect of exchange rates relates to foreign currency translation adjustments for the period.
| As of December 31, 2018
Reportable Segment: | Gross Carrying Amount |  | Accumulated Impairment Losses |  | Net Carrying Amount
| (In thousands)
MID | $ | 66,643 |  |  | $ | — |  |  | $ | 66,643 |
RSD | 140,535 |  |  | — |  |  | 140,535 |
Other | 21,770 |  |  | (21,770 | ) |  | — |
Total | $ | 228,948 |  |  | $ | (21,770 | ) |  | $ | 207,178 |
Reportable Segment: | December 31, 2016 |  | Addition to Goodwill (1) |  | Impairment Charge of Goodwill |  | Effect of Exchange Rates (2) |  | December 31, 2017
MID | $ | 66,643 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 66,643 |
RSD | 138,151 |  |  | 803 |  |  | — |  |  | 4,064 |  |  | 143,018 |
Total | $ | 204,794 |  |  | $ | 803 |  |  | $ | — |  |  | $ | 4,064 |  |  | $ | 209,661 |
(1) During the first quarter of 2017, the Company corrected an immaterial error related to an overstatement in prepaids and other current assets that originated in 2016. (2) Effect of exchange rates relates to foreign currency translation adjustments for the period.
| As of December 31, 2017
Reportable Segment: | Gross Carrying Amount |  | Accumulated Impairment Losses |  | Net Carrying Amount
MID | $ | 66,643 |  |  | $ | — |  |  | $ | 66,643 |
RSD | 143,018 |  |  | — |  |  | 143,018 |
Other | 21,770 |  |  | (21,770 | ) |  | — |
Total | $ | 231,431 |  |  | $ | (21,770 | ) |  | $ | 209,661 |
Components of intangible assets | The components of the Company’s intangible assets as of December 31, 2018 and December 31, 2017 were as follows:
|  |  | As of December 31, 2018
| Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  |  | (In thousands)
Existing technology | 3 to 10 years |  | $ | 258,903 |  |  | $ | (213,824 | ) |  | $ | 45,079 |
Customer contracts and contractual relationships | 1 to 10 years |  | 67,667 |  |  | (54,410 | ) |  | 13,257 |
Non-compete agreements and trademarks | 3 years |  | 300 |  |  | (300 | ) |  | — |
In-process research and development | Not applicable |  | 1,600 |  |  | — |  |  | 1,600 |
Total intangible assets |  |  | $ | 328,470 |  |  | $ | (268,534 | ) |  | $ | 59,936 |
|  |  | As of December 31, 2017
| Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
|  |  | (In thousands)
Existing technology | 3 to 10 years |  | $ | 258,008 |  |  | $ | (191,554 | ) |  | $ | 66,454 |
Customer contracts and contractual relationships | 1 to 10 years |  | 68,794 |  |  | (48,626 | ) |  | 20,168 |
Non-compete agreements and trademarks | 3 years |  | 300 |  |  | (300 | ) |  | — |
In-process research and development | Not applicable |  | 5,100 |  |  | — |  |  | 5,100 |
Total intangible assets |  |  | $ | 332,202 |  |  | $ | (240,480 | ) |  | $ | 91,722 |
Estimated future amortization expense of intangible assets | The estimated future amortization expense of intangible assets as of December 31, 2018 was as follows (amounts in thousands):
Years Ending December 31: | Amount
2019 | $ | 20,177 |
2020 | 19,892 |
2021 | 12,975 |
2022 | 2,047 |
2023 | 1,526 |
Thereafter | 1,719 |
Total amortizable purchased intangible assets | 58,336 |
In-process research and development | 1,600 |
Total intangible assets | $ | 59,936 |

X
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for intangible assets. + References No definition available. + Details
Name: | rmbs_ScheduleofIntangibleAssetsFutureAmortizationExpenseTextBlock
Namespace Prefix: | rmbs_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267 + Details
Name: | us-gaap_ScheduleOfGoodwillTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration