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Basis of Presentation and Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2020
Basis of Presentation and Significant Accounting Policies |
Summary of activity in allowance for doubtful accounts | The following table shows the activity in the allowance for doubtful accounts from continuing operations for the six months ended June 30, 2020 (in thousands):
​ | ​ | ​ | ​
​ | ​ | Six Months Ended June 30,
​ |  | 2020
Beginning balance | ​ | $ | —
Charged to operating expenses | ​ |  | 1,409
Ending balance | ​ | $ | 1,409

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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