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v3.20.1

Nature of Business and Basis of Presentation - Additional Information (Detail) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 USD ($) Employee Segment | Dec. 31, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of operating segments | Segment | 1 |
Total current assets | $ 817,314,000 | $ 855,005,000
Cash and cash equivalents | 329,045,000 | 644,588,000
Short-term investments | 213,190,000 |
Long-term investments | 81,519,000 |
Accounts receivable, net | 158,288,000 | 116,430,000
Inventory | 92,121,000 | $ 76,769,000
Other debt outstanding | $ 0 |
Sales Representatives and Managers |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of sales professionals | Employee | 440 |
Sales Representatives |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of sales professionals | Employee | 400 |
Direct Sales Force |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of sales professionals | Employee | 900 |
Direct Sales Force And Sales Representatives |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |
Number of sales professionals | Employee | 800 |

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