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Marketable Securities | 6 Months Ended
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Jun. 30, 2019
Investments Debt And Equity Securities [Abstract] |
Marketable Securities | Note 4 - Marketable securities: Our marketable securities consist of investments in the publicly-traded shares of related parties: Valhi, NL and CompX International Inc. NL owns the majority of CompX’s outstanding common stock. All of our marketable securities are accounted for as available-for-sale securities, which are carried at fair value using quoted market prices in active markets for each marketable security. Any unrealized gains or losses on the securities are recognized in Marketable equity securities on our Condensed Consolidated Statements of Income. The fair value of our equity securities represent a Level 1 input within the fair value hierarchy. See Note 15.
|  | Fair value |  |  |  |  |  |  |  |  |  |  |  |
|  | measurement |  | Market |  |  | Cost |  |  |  |  |
Marketable security |  | level |  | value |  |  | basis |  |  | Unrealized gain |
|  |  |  | (In millions) |
December 31, 2018: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valhi common stock |  | 1 |  | $ | 3.3 |  |  | $ | 3.2 |  |  | $ | .1 |
NL and CompX common stocks |  | 1 |  |  | .1 |  |  |  | .1 |  |  |  | - |
Total |  |  |  | $ | 3.4 |  |  | $ | 3.3 |  |  | $ | .1 |
June 30, 2019: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Valhi common stock |  | 1 |  | $ | 5.1 |  |  | $ | 3.2 |  |  | $ | 1.9 |
NL and CompX common stocks |  | 1 |  |  | .1 |  |  |  | .1 |  |  |  | - |
Total |  |  |  | $ | 5.2 |  |  | $ | 3.3 |  |  | $ | 1.9 |
At December 31, 2018 and June 30, 2019, we held approximately 1.7 million shares of Valhi’s common stock. We also held a nominal number of shares of CompX and NL common stocks. At December 31, 2018 and June 30, 2019, the quoted per share market price of Valhi’s common stock was $1.93 and $2.97, respectively. The Valhi, CompX and NL common stocks we own are subject to the restrictions on resale pursuant to certain provisions of SEC Rule 144. In addition, as a majority-owned subsidiary of Valhi we cannot vote our shares of Valhi common stock under Delaware General Corporation law, but we do receive dividends from Valhi on these shares when declared and paid.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
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