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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Summary of opening and closing balances | The following table summarizes the opening and closing balances of our accounts receivable, net; contract assets, current; contract assets, non-current; deferred revenue, current; and deferred revenue, non-current (in thousands):
| Accounts receivable, net (1) |  | Contract assets, current |  | Contract assets, non-current |  | Deferred revenue, current |  | Deferred revenue, non-current
Beginning balances as of January 1, 2021 | $ | 676,738 |  |  | $ | 13,534 |  |  | $ | 54,050 |  |  | $ | 101,258 |  |  | $ | 71,242 |
Closing balances as of September 30, 2021 | 792,101 |  |  | 49,793 |  |  | 51,452 |  |  | 112,952 |  |  | 66,318 |
Increase (Decrease) | $ | 115,363 |  |  | $ | 36,259 |  |  | $ | (2,598) |  |  | $ | 11,694 |  |  | $ | (4,924) |
(1) The net change in our allowance for credit losses was insignificant during the nine months ended September 30, 2021.

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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=123351226&loc=SL49130551-203045 + Details
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- References No definition available. + Details
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