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Business and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Summary of revenue | The following table presents a summary of revenue:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Subscription revenue | $ | 69,370 |  |  | $ | 48,725 |  |  | $ | 134,107 |  |  | $ | 93,057 |
Perpetual license and maintenance revenue | 13,553 |  |  | 13,412 |  |  | 27,080 |  |  | 26,889 |
Professional services and other revenue | 2,461 |  |  | 1,455 |  |  | 4,498 |  |  | 2,753 |
Revenue | $ | 85,384 |  |  | $ | 63,592 |  |  | $ | 165,685 |  |  | $ | 122,699 |
Activity of deferred contract costs | The following summarizes the activity of deferred incremental costs of obtaining a contract in the periods presented:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) | 2019 |  | 2018 |  | 2019 |  | 2018
Beginning balance | $ | 59,811 |  |  | $ | 50,451 |  |  | $ | 59,434 |  |  | $ | 50,176 |
Capitalization of contract acquisition costs | 8,608 |  |  | 4,700 |  |  | 15,234 |  |  | 9,847 |
Amortization of deferred contract acquisition costs | (6,553 | ) |  | (4,346 | ) |  | (12,802 | ) |  | (9,218 | )
Ending balance | $ | 61,866 |  |  | $ | 50,805 |  |  | $ | 61,866 |  |  | $ | 50,805 |

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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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