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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2022
Fair Value Measurements |
Schedule of financial assets and liabilities measured at fair value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Estimated Fair Value June 30, 2022
​ | ​ | Total | ​ | Input Levels Used
​ | ​ | Fair Value | ​ | Level 1 | ​ | Level 2 | ​ | Level 3
Cash and cash equivalents |  | $ | 46,628 |  | $ | 46,628 |  | $ | - |  | $ | -
Available for sale securities | ​ | ​ | 262,057 | ​ | ​ | 748 | ​ | ​ | 261,309 | ​ | ​ | -
Foreign currency forward contracts | ​ | ​ | 165 | ​ | ​ | - | ​ | ​ | 165 | ​ | ​ | -
Commodity futures contracts | ​ | ​ | 100 | ​ | ​ | 100 | ​ | ​ | - | ​ | ​ | -
Trading securities | ​ | ​ | 72,480 | ​ | ​ | 56,964 | ​ | ​ | 15,516 | ​ | ​ | -
Total assets measured at fair value | ​ | $ | 381,430 | ​ | $ | 104,440 | ​ | $ | 276,990 | ​ | $ | -
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Estimated Fair Value December 31, 2021
​ | ​ | ​ | Total | ​ | Input Levels Used
​ | ​ | ​ | Fair Value | ​ | ​ | Level 1 | ​ | ​ | Level 2 | ​ | ​ | Level 3
Cash and cash equivalents |  | $ | 105,840 |  | $ | 105,840 |  | $ | - |  | $ | -
Available for sale securities | ​ | ​ | 241,407 | ​ |  | 1,282 | ​ |  | 240,125 | ​ | ​ | -
Foreign currency forward contracts | ​ | ​ | 426 | ​ |  | — | ​ |  | 426 | ​ | ​ | -
Commodity futures contracts, net | ​ | ​ | 124 | ​ |  | 124 | ​ |  | — | ​ | ​ | -
Trading securities | ​ | ​ | 89,736 | ​ |  | 76,196 | ​ |  | 13,540 | ​ | ​ | -
Total assets measured at fair value | ​ | $ | 437,533 | ​ | $ | 183,442 | ​ | $ | 254,091 | ​ | $ | -
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Estimated Fair Value June 30, 2021
​ | ​ | ​ | Total | ​ | Input Levels Used
​ | ​ | ​ | Fair Value | ​ | ​ | Level 1 | ​ | ​ | Level 2 | ​ | ​ | Level 3
Cash and cash equivalents |  | $ | 96,617 |  | $ | 96,617 |  | $ | - |  | $ | -
Available for sale securities | ​ | ​ | 223,410 | ​ | ​ | 2,616 | ​ | ​ | 220,794 | ​ | ​ | -
Foreign currency forward contracts | ​ | ​ | 717 | ​ | ​ | - | ​ | ​ | 717 | ​ | ​ | -
Commodity futures contracts | ​ | ​ | 754 | ​ | ​ | 754 | ​ | ​ | - | ​ | ​ | -
Trading securities | ​ | ​ | 83,867 | ​ | ​ | 70,879 | ​ | ​ | 12,988 | ​ | ​ | -
Total assets measured at fair value | ​ | $ | 405,365 | ​ | $ | 170,866 | ​ | $ | 234,499 | ​ | $ | -

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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