XML 38 R34.htm IDEA: XBRL DOCUMENT
v3.20.1

Other Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |
Summary of Other Assets |
| December 31, |
| 2018 |  |  | 2019 |
| (In thousands) |
Pension asset | $ | 1,898 |  |  | $ | 4,294 |
Other |  | 1,210 |  |  |  | 1,566 |
Total | $ | 3,108 |  |  | $ | 5,860 |

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

X
- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfOtherAssetsNoncurrentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration