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Commitments and Contingencies - Narrative (Details)	1 Months Ended	12 Months Ended
	Oct. 31, 2019 USD ($) ft² renewal_options $ / ft²	Dec. 31, 2021 USD ($) ft² renewal_options	Jan. 01, 2021 USD ($)	Jan. 03, 2020 USD ($)	Jan. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Cash paid for amounts included in the measurement of lease liabilities		$ 5,000,000	$ 4,600,000	$ 2,900,000
Weighted average operating discount rate used to determine the operating lease liability		3.10%
Weighted average remaining lease term for operating lease		9 years 9 months 18 days
Future tenant improvement reimbursements		$ 426,000
Other long-term assets		36,800,000
Restricted cash equivalents		15,200,000
Standby Letters of Credit
Lessee, Lease, Description [Line Items]
Line of credit borrowing capacity		$ 16,700,000	$ 1,600,000
Headquarters Lease
Lessee, Lease, Description [Line Items]
Area of leased property (in sqft) | ft²		254,690
Number of options to extend the lease | renewal_options		2
Renewal term		5 years
Tenant lease improvements allowance					$ 8,200,000
Headquarters Lease, April 2019 Amendment
Lessee, Lease, Description [Line Items]
Tenant lease improvements allowance		$ 1,700,000
Headquarters Lease, December 2020 Amendment
Lessee, Lease, Description [Line Items]
Tenant lease improvements allowance		$ 1,400,000
Headquarters Lease, 2021 Amendment
Lessee, Lease, Description [Line Items]
Area of leased property (in sqft) | ft²		25,749
Built-To-Suit Lease
Lessee, Lease, Description [Line Items]
Area of leased property (in sqft) | ft²	220,000
Number of options to extend the lease | renewal_options	2
Renewal term	5 years
Build-to-suit lease period	242 months
Currently estimated amount	$ 700,000
Annual increase percentage	3.00%
Payment commencement period	60 days
Future tenant improvement reimbursements	$ 16,500,000
Area of property available for lease (in squire feet) | $ / ft²	525
Percentage of excess costs	50.00%
Option to terminate lease (after period)	180 months

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