Revenue and Cost of Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Percentage of revenue (as a percent)	100.00%	100.00%	100.00%	100.00%
Percentage of subscriptions (as a percent)	90.00%	90.00%	90.00%	90.00%
Revenue recognized	$ 14,500		$ 102,500
Revenue, remaining performance obligation, amount	1,200,000		1,200,000
Product revenues	303,624	$ 233,352	849,121	$ 649,993
Product cost of revenues	82,314	59,705	232,395	164,170
Product
Disaggregation of Revenue [Line Items]
Product revenues	11,300	11,500	31,500	30,100
Product cost of revenues	$ 10,200	$ 10,400	$ 29,800	$ 27,400
Minimum
Disaggregation of Revenue [Line Items]
Remaining performance obligations subscription term			1 month
Maximum
Disaggregation of Revenue [Line Items]
Remaining performance obligations subscription term			5 years
North America
Disaggregation of Revenue [Line Items]
Percentage of revenue (as a percent)	92.00%	94.00%	92.00%	94.00%
Others
Disaggregation of Revenue [Line Items]
Percentage of revenue (as a percent)	8.00%	6.00%	8.00%	6.00%

Percentage of revenue.

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- Definition

Percentage of software subscriptions.

+ References

No definition available.

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- Definition

Revenue from contract with customer, subscription term.

+ References

No definition available.

+ Details

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-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

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045

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