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Deferred Contract Acquisition and Fulfillment Costs (Tables) | 12 Months Ended
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Dec. 31, 2020
Revenue from Contract with Customer [Abstract] |
Capitalized Contract Cost | The following table summarizes the activity of the deferred contract acquisition and fulfillment costs for the years ended December 31, 2020 and 2019:
| Year Ended December 31,
| 2020 |  | 2019
| (in thousands)
Beginning balance | $ | 51,260 |  |  | $ | 39,955 |
Capitalization of contract acquisition and fulfillment costs | 33,525 |  |  | 26,109 |
Amortization of deferred contract acquisition and fulfillment costs | (20,146) |  |  | (14,804) |
Ending balance | $ | 64,639 |  |  | $ | 51,260 |

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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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