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Contract Assets and Contract Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2020
Revenue from Contract with Customer [Abstract] |
Net Contract Assets (Liabilities) | Net contract assets (liabilities) as of September 30, 2020 and December 31, 2019 are as follows:
| September 30, 2020 |  | December 31, 2019
Contract assets - current | $ | 47.0 |  |  | $ | 38.4 |
Contract assets - long-term(i) | 21.3 |  |  | 21.6 |
Deferred revenue - current | (197.4) |  |  | (246.4) |
Deferred revenue - long-term | (122.5) |  |  | (147.0) |
(i)Reported in other long-term assets on the company’s consolidated balance sheets |  |  |
Significant changes during the three and nine months ended September 30, 2020 and 2019 in the above contract asset and liability balances were as follows:
| Three Months Ended September 30, |  |  |  | Nine Months Ended September 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Revenue recognized that was included in deferred revenue at the beginning of the period | $ | 48.1 |  |  | $ | 30.1 |  |  | $ | 197.3 |  |  | $ | 202.1 |

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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=121604090&loc=SL49130551-203045 + Details
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