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Credit Losses (Tables) | 6 Months Ended
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Jun. 30, 2020
Credit Loss [Abstract] |
Summary of Allowance for Credit Losses Related to Accounts Receivable and Changes | The allowance for credit losses related to accounts receivable as of June 30, 2020 and changes for the three and six months then ended are as follows (in thousands):
Balance at December 31, 2019 | $ | 6,516 |
Provision for expected credit losses |  | 1,055 |
Balance at March 31, 2020 |  | 7,571 |
Provision for expected credit losses |  | 4,551 |
Balance at June 30, 2020 | $ | 12,122 |

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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=121599337&loc=SL82919249-210447 + Details
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