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Leases (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2021 USD ($) ft² | Sep. 30, 2021 USD ($) ft² | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) ft² item | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Operating lease liabilities, current portion included in other accrued liabilities | $ 6,922 | $ 6,922 |  | $ 6,922 |  | $ 7,300
Operating lease liabilities, long-term portion | 48,388 | 48,388 |  | 48,388 |  | $ 21,246
Operating lease liabilities | $ 55,310 | $ 55,310 |  | 55,310 |  |
Noncash investing activities related to right-of-use assets |  |  |  | $ 31,300 |  |
Weighted average remaining lease term | 3 years 7 months 28 days | 3 years 7 months 28 days |  | 3 years 7 months 28 days |  |
Weighted average discount rate (as a percent) | 7.48% | 7.48% |  | 7.48% |  |
Lease expense |  | $ 2,800 | $ 1,900 | $ 8,100 | $ 5,800 |
Operating lease payments |  | $ 2,600 | $ 2,200 | $ 7,600 | $ 6,600 |
Minimum |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Term of lease | 3 years | 3 years |  | 3 years |  |
Maximum |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Term of lease | 5 years | 5 years |  | 5 years |  |
Corporate Headquarters Lease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 113,000 | 113,000 |  | 113,000 |  |
Number of office space locations | item |  |  |  | 2 |  |
Term of lease | 84 months | 84 months |  | 84 months |  |
Renewal term of lease | 5 years | 5 years |  | 5 years |  |
"First Space" Sublease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Number of office space locations | ft² |  |  |  | 88,000 |  |
"Second Space" Sublease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Number of office space locations | ft² |  |  |  | 25,000 |  |
Corporate Headquarters Lease Amendment |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Annual lease payment |  |  |  | $ 9,300 |  |
Term of lease | 48 months | 48 months |  | 48 months |  |
Austin TX, Long-term Lease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 94,000 | 94,000 |  | 94,000 |  |
Term of lease | 132 months | 132 months |  | 132 months |  |
Tukwila, WA Lease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 10,000 | 10,000 |  | 10,000 |  |
Term of lease | 62 months | 62 months |  | 62 months |  |
Renewal term of lease | 5 years | 5 years |  | 5 years |  |
San Carlos, CA Sublease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 25,879 | 25,879 |  | 25,879 |  |
Term of lease | 48 months | 48 months |  | 48 months |  |
Sublease receivable | $ 1,900 | $ 1,900 |  | $ 1,900 |  |
San Carlos, CA Sublease Amendment |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Noncash investing activities related to right-of-use assets |  |  |  | $ 29,700 |  |
San Carlos, CA Sublease Amendment | Rentable square feet surrendered in lease amendment |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 25,879 | 25,879 |  | 25,879 |  |
South San Francisco, CA Lease |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 11,395 | 11,395 |  | 11,395 |  |
Annual lease payment |  |  |  | $ 900 |  |
Term of lease | 36 months | 36 months |  | 36 months |  |
Vancouver, British Columbia, Canada |  |  |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |  |  |
Office space (area) | ft² | 7,107 | 7,107 |  | 7,107 |  |
Annual lease payment | $ 200 |  |  |  |  |
Term of lease | 24 months | 24 months |  | 24 months |  |

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