XML 49 R35.htm IDEA: XBRL DOCUMENT
v3.20.4

Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Investments [Abstract] |
Schedule of investments | Investments consisted of the following:
|  | As of December 31,
(in thousands) |  | 2020 |  | 2019
Investments held at cost |  | $ | 4,564 |  |  | $ | 4,405 |
Equity method investments |  | 9,840 |  |  | 3,970 |
Total investments |  | $ | 14,404 |  |  | $ | 8,375 |

X
- Definition Tabular disclosure of data and information required in the supplementary schedule applicable to management investment companies listing holdings of unaffiliated investments. + References No definition available. + Details
Name: | us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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