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Revenues (Tables) | 12 Months Ended
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Dec. 31, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenues by Revenue Type and Geographic Region | The following table summarizes the Company’s product revenues disaggregated by revenue type for the years ended December 31, 2019, 2018, and 2017:
| Year Ended December 31, |  |  |  |
| 2019 |  | 2018 |  | 2017
| (In thousands) |  |  |  |  |
Hardware and software | $ | 553,039 |  |  |  | $ | 464,500 |  |  |  | $ | 406,095 |
Consumables | 88,876 |  |  |  | 89,529 |  |  |  | 88,100 |
Other | 17,687 |  |  |  | 15,566 |  |  |  | 16,006 |
Total product revenues | $ | 659,602 |  |  |  | $ | 569,595 |  |  |  | $ | 510,201 |
The following table summarizes the Company’s revenues disaggregated by geographic region, which is determined based on customer location, for the years ended December 31, 2019, 2018, and 2017:
| Year Ended December 31, |  |  |  |
| 2019 |  | 2018 |  | 2017
| (In thousands) |  |  |  |
United States | $ | 806,900 |  |  | $ | 685,881 |  |  | $ | 613,817 |
Rest of world (1) | 90,127 |  |  | 101,428 |  |  | 98,897 |
Total revenues | $ | 897,027 |  |  | $ | 787,309 |  |  | $ | 712,714 |
_________________________________________________ (1) No individual country represented more than 10% of total revenues.
Contract Assets and Liabilities | The following table reflects the Company’s contract assets and contract liabilities:
| December 31, |  |
| 2019 |  | 2018
| (In thousands) |  |
Short-term unbilled receivables (1) | $ | 11,707 |  |  | $ | 9,191 |
Long-term unbilled receivables (2) | 12,260 |  |  | 16,481 |
Total contract assets |  | $ | 23,967 |  |  | $ | 25,672 |
Short-term deferred revenues, net | $ | 90,894 |  |  | $ | 81,835 |
Long-term deferred revenues | 7,083 |  |  | 10,582 |
Total contract liabilities |  | $ | 97,977 |  |  | $ | 92,417 |
_________________________________________________ (1) Included in accounts receivable and unbilled receivables in the Consolidated Balance Sheets. (2) Included in other long-term assets in the Consolidated Balance Sheets.

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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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- 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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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