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REVENUE RECOGNITION (Tables) | 6 Months Ended
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Jun. 30, 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 June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
| (In thousands)
Primary geographical markets: |  |  |  |  |  |  |
U.S. | $ | 254,576 |  |  | $ | 100,791 |  |  | $ | 502,358 |  |  | $ | 280,391 |
International | 61,481 |  |  | 24,747 |  |  | 115,453 |  |  | 50,692 |
Total | $ | 316,057 |  |  | $ | 125,538 |  |  | $ | 617,811 |  |  | $ | 331,083 |
Timing of revenue recognition: |  |  |  |  |  |  |
Products delivered at a point in time | $ | 302,100 |  |  | $ | 114,299 |  |  | $ | 590,971 |  |  | $ | 308,978 |
Products and services delivered over time | 13,957 |  |  | 11,239 |  |  | 26,840 |  |  | 22,105 |
Total | $ | 316,057 |  |  | $ | 125,538 |  |  | $ | 617,811 |  |  | $ | 331,083 |
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:
| June 30, 2021 |  | December 31, 2020
| (In thousands)
Receivables | $ | 281,154 |  |  | $ | 182,165 |
Short-term contract assets (Prepaid expenses and other assets) | 21,135 |  |  | 17,879 |
Long-term contract assets (Other assets) | 63,752 |  |  | 51,986 |
Short-term contract liabilities (Deferred revenues) | 55,084 |  |  | 47,665 |
Long-term contract liabilities (Deferred revenues) | 165,645 |  |  | 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 | (10,255) |
Increase | 25,277 |
Contract Assets, end of period | $ | 84,887 |
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 | (33,544) |
Increase due to billings | 81,135 |
Contract Liabilities, end of period | $ | 220,729 |
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:
| June 30, 2021
| (In thousands)
Fiscal year: |
2021 (remaining six months) | $ | 29,069 |
2022 | 51,375 |
2023 | 45,388 |
2024 | 40,157 |
2025 | 33,174 |
Thereafter | 21,566 |
Total | $ | 220,729 |

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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=123351226&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=123351226&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=123351226&loc=SL49130556-203045 + Details
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