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Fair Value Disclosure (On a Recurring Basis) (Details) - Fair value measurements, recurring - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Level 1
Assets:
Equity securities	$ 8,947	$ 10,120
Assets at fair value	8,947	10,120
Level 2
Assets:
Equity securities	0	0
Assets at fair value	0	0
Level 3
Assets:
Equity securities	0	0
Assets at fair value	0	0
Total
Assets:
Equity securities	8,947	10,120
Assets at fair value	$ 8,947	$ 10,120

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

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