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REVENUE RECOGNITION (Tables) | 3 Months Ended
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Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
Summary of Revenue Disaggregation | Disaggregated revenue by primary geographical market and timing of revenue recognition for the Company’s single product line are as follows:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2021 |  | 2020
|  |  |  |  | (In thousands)
Primary geographical markets: |  |  |  |  |  |  |
U.S. |  |  |  |  | $ | 247,782 |  |  | $ | 179,600 |
International |  |  |  |  | 53,972 |  |  | 25,945 |
Total |  |  |  |  | $ | 301,754 |  |  | $ | 205,545 |
Timing of revenue recognition: |  |  |  |  |  |  |
Products delivered at a point in time |  |  |  |  | $ | 288,871 |  |  | $ | 194,679 |
Products and services delivered over time |  |  |  |  | 12,883 |  |  | 10,866 |
Total |  |  |  |  | $ | 301,754 |  |  | $ | 205,545 |
Summary of Contract Assets and Contract Liabilities, and Changes in Balances from Contracts with Customers | Receivables, and contract assets and contract liabilities from contracts with customers are as follows:
| March 31, 2021 |  | December 31, 2020
| (In thousands)
Receivables | $ | 236,090 |  |  | $ | 182,165 |
Short-term contract assets (Prepaid expenses and other assets) | 19,338 |  |  | 17,879 |
Long-term contract assets (Other assets) | 57,400 |  |  | 51,986 |
Short-term contract liabilities (Deferred revenues) | 49,118 |  |  | 47,665 |
Long-term contract liabilities (Deferred revenues) | 142,985 |  |  | 125,473 |
Significant changes in the balances of contract assets (prepaid expenses and other assets) during the period are as follows (in thousands):
Contract Assets |
Contract Assets, beginning of period | $ | 69,865 |
Amount recognized | (4,955) |
Increase | 11,828 |
Contract Assets, end of period | $ | 76,738 |
Significant changes in the balances of contract liabilities (deferred revenues) during the period are as follows (in thousands):
Contract Liabilities |
Contract Liabilities, beginning of period | $ | 173,138 |
Revenue recognized | (16,235) |
Increase due to billings | 35,200 |
Contract Liabilities, end of period | $ | 192,103 |
Summary of Estimated Revenue Expected to be Recognized in Future Periods | Estimated revenue expected to be recognized in future periods related to performance obligations that are unsatisfied or partially unsatisfied at the end of the reporting period are as follows:
| March 31, 2021
| (In thousands)
Fiscal year: |
2021 (remaining nine months) | $ | 38,116 |
2022 | 44,067 |
2023 | 38,220 |
2024 | 32,994 |
2025 | 26,021 |
Thereafter | 12,685 |
Total | $ | 192,103 |

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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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- 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=121604090&loc=SL49130545-203045 + Details
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- Definition Tabular disclosure of expected timing for satisfying remaining performance obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045 + Details
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