XML 50 R37.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in the carrying amount of goodwill, by segment | The changes in the carrying amount of goodwill for the period ending December 31, 2018, by operating segment, were as follows:
(Dollars in thousands) | Advanced Connectivity Solutions |  | Elastomeric Material Solutions |  | Power Electronics Solutions |  | Other |  | Total
December 31, 2017 | $ | 51,693 |  |  | $ | 111,575 |  |  | $ | 71,615 |  |  | $ | 2,224 |  |  | $ | 237,107 |
Acquisition | — |  |  | 32,305 |  |  | — |  |  | — |  |  | 32,305 |
Purchase accounting adjustment | — |  |  | (567 | ) |  | — |  |  | — |  |  | (567 | )
Foreign currency translation adjustment | — |  |  | (724 | ) |  | (3,236 | ) |  | — |  |  | (3,960 | )
December 31, 2018 | $ | 51,693 |  |  | $ | 142,589 |  |  | $ | 68,379 |  |  | $ | 2,224 |  |  | $ | 264,885 |
Intangible assets | The changes in the carrying amount of other intangible assets for the two-year period ending December 31, 2018, were as follows:
| December 31, 2018 |  | December 31, 2017
(Dollars in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 149,753 |  |  | $ | 30,078 |  |  | $ | 119,675 |  |  | $ | 128,907 |  |  | $ | 22,514 |  |  | $ | 106,393 |
Technology | 81,535 |  |  | 38,624 |  |  | 42,911 |  |  | 73,891 |  |  | 33,491 |  |  | 40,400 |
Trademarks and trade names | 12,019 |  |  | 3,213 |  |  | 8,806 |  |  | 10,213 |  |  | 2,157 |  |  | 8,056 |
Covenants not to compete | 1,340 |  |  | 249 |  |  | 1,091 |  |  | 1,799 |  |  | 1,108 |  |  | 691 |
Total definite-lived other intangible assets | 244,647 |  |  | 72,164 |  |  | 172,483 |  |  | 214,810 |  |  | 59,270 |  |  | 155,540 |
Indefinite-lived other intangible asset | 4,525 |  |  | — |  |  | 4,525 |  |  | 4,738 |  |  | — |  |  | 4,738 |
Total other intangible assets | $ | 249,172 |  |  | $ | 72,164 |  |  | $ | 177,008 |  |  | $ | 219,548 |  |  | $ | 59,270 |  |  | $ | 160,278 |
Weighted average amortization period, by intangible asset class | The weighted average amortization period as of December 31, 2018, by definite-lived other intangible asset class, is presented in the table below:
Definite-Lived Other Intangible Asset Class | Weighted Average Remaining Amortization Period
Customer relationships | 7.6
Technology | 4.4
Trademarks and trade names | 5.0
Covenants not to compete | 2.1
Total definite-lived other intangible assets | 6.6

X
- Definition Intangible Assets Amortization Period [Table Text Block] + References No definition available. + Details
Name: | rog_IntangibleAssetsAmortizationPeriodTableTextBlock
Namespace Prefix: | rog_
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