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Contract Assets and Contract Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2020
Revenue From Contract With Customer [Abstract] |
Summary of Company's Contract Asset and Contract Liability | Accounts receivable and unbilled, net consisted of the following (in thousands):
| As of |
| March 31, |  |  | December 31, |
| 2020 |  |  | 2019 |
Accounts receivable | $ | 108,852 |  |  | $ | 127,877 |
Unbilled receivables |  | 28,059 |  |  |  | 28,368 |
Less: allowance for doubtful accounts |  | (537 | ) |  |  | (583 | )
Total accounts receivable and unbilled, net | $ | 136,374 |  |  | $ | 155,662 |
Advanced billings consisted of the following (in thousands):
| As of |
| March 31, |  |  | December 31, |
| 2020 |  |  | 2019 |
Advanced billings | $ | 189,562 |  |  | $ | 192,359 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + 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=118956577&loc=SL49130551-203045 + Details
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