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Revenue - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Unbilled receivables, net | $ 43,694 |  | $ 22,358
Contract with customer, liability | 16,000 |  | $ 10,100
Contract with customer, liability, revenue recognized | 860 | $ 700 |
Revenue, remaining performance obligation | $ 188,000 |  |
Sales Revenue, Net | Product Concentration Risk | Transferred at Point in Time |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Concentration risk, percentage | 49.00% | 43.00% |
Sales Revenue, Net | Product Concentration Risk | Transferred over Time |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Concentration risk, percentage | 51.00% | 57.00% |

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