XML 36 R26.htm IDEA: XBRL DOCUMENT
v3.19.2

Investments (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Investments [Abstract] |
Investments in Marketable Equity Securities | Investments in marketable equity securities consist of the following:
| As of
| June 30, 2019 |  | December 31, 2018
(in thousands) |
Total cost | $ | 282,349 |  |  | $ | 282,563 |
Gross unrealized gains | 235,885 |  |  | 216,111 |
Gross unrealized losses | (135 | ) |  | (2,284 | )
Total Fair Value | $ | 518,099 |  |  | $ | 496,390 |
Gain (loss) on Marketable Equity Securities | The gain (loss) on marketable equity securities comprised the following:
| Three Months Ended June 30 |  | Six Months Ended June 30
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Gain (loss) on marketable equity securities, net | $ | 7,791 |  |  | $ | (2,554 | ) |  | $ | 31,857 |  |  | $ | (16,656 | )
Less: Net (gains) losses in earnings from marketable equity securities sold and donated | 2 |  |  | 1,660 |  |  | (2,980 | ) |  | 4,271 |
Net unrealized gains (losses) in earnings from marketable equity securities still held at the end of the period | $ | 7,793 |  |  | $ | (894 | ) |  | $ | 28,877 |  |  | $ | (12,385 | )

X
- Definition Tabular disclosure of realized and unrealized gain (loss) on investment in security. + References No definition available. + Details
Name: | us-gaap_GainLossOnInvestmentsTextBlock
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

X
- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration