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Other comprehensive income (loss) and accumulated other comprehensive items | 9 Months Ended
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Sep. 30, 2020
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |
Other comprehensive income (loss) and accumulated other comprehensive items | Other comprehensive income (loss) includes changes in equity that are excluded from net income (loss), such as unrealized gains and losses on marketable securities. The following tables summarize other comprehensive income (loss) and the changes in accumulated other comprehensive items for the three and nine month periods ended September 30, 2020: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Unrealized |  | ​ | ​ |  | Total
​ | ​ | Gains/(Losses) | ​ | ​ | ​ | ​ | Accumulated
​ | ​ | On | ​ | Foreign | ​ | Other
​ | ​ | Marketable | ​ | Currency | ​ | Comprehensive
​ | ​ | Securities, net of tax | ​ | Translation | ​ | Items
Balance, June 30, 2020 | ​ | $ | 3,410 | ​ | $ | (13,426) | ​ | $ | (10,016)
Other comprehensive loss before reclassifications | ​ |  | (1,016) | ​ |  | (24,695) | ​ |  | (25,711)
Amounts reclassified from other comprehensive items | ​ |  | — | ​ |  | — | ​ |  | —
Other comprehensive loss before reclassifications | ​ |  | (1,016) | ​ |  | (24,695) | ​ |  | (25,711)
Balance, September 30, 2020 | ​ | $ | 2,394 | ​ | $ | (38,121) | ​ | $ | (35,727)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Unrealized |  | ​ | ​ |  | Total
​ | ​ | Gains | ​ | ​ | ​ | ​ | Accumulated
​ | ​ | On | ​ | Foreign | ​ | Other
​ | ​ | Marketable | ​ | Currency | ​ | Comprehensive
​ | ​ | Securities, net of tax | ​ | Translation | ​ | Items
Balance, December 31, 2019 | ​ | $ | 755 | ​ | $ | (11,339) | ​ | $ | (10,584)
Other comprehensive income (loss) before reclassifications | ​ |  | 1,639 | ​ |  | (26,782) | ​ |  | (25,143)
Amounts reclassified from other comprehensive items | ​ |  | — | ​ |  | — | ​ |  | —
Other comprehensive income (loss) | ​ |  | 1,639 | ​ |  | (26,782) | ​ |  | (25,143)
Balance, September 30, 2020 | ​ | $ | 2,394 | ​ | $ | (38,121) | ​ | $ | (35,727)

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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