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Revenue (Tables) | 6 Months Ended
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Jun. 30, 2021
Revenue from Contract with Customer [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | The following table provides information about contract assets and contract liabilities from contracts with customers:
|  | June 30, 2021 |  | December 31, 2020 |  | December 31, 2019
Contract assets |  | $ | 15,079 |  |  | $ | 15,020 |  |  | $ | 14,894 |
Contract liabilities - current |  | 189,317 |  |  | 184,845 |  |  | 104,901 |
Contract liabilities - non-current |  | 22,534 |  |  | 13,921 |  |  | 10,921 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- References No definition available. + Details
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