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Summary of business and significant accounting policies (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Nov. 20, 2023
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Nov. 24, 2020
Property, Plant and Equipment [Line Items]              
Operating Lease, Impairment Loss   $ 3,276 $ 0 $ 3,276 $ 0    
Contract with Customer, Liability   56,300   56,300   $ 59,100  
Deferred Revenue, Revenue Recognized   16,700 16,900 39,400 38,300    
Accumulated deficit   (636,205)   (636,205)   (249,296)  
Product Warranty Liability [Line Items]              
Gain (Loss) on Extinguishment of Debt $ 3,100            
Revenues   186,224 241,020 341,693 415,740    
Deferred Revenue, Revenue Recognized   23,200 22,500        
Gain (Loss) on Extinguishment of Debt $ 3,100            
Revenues   186,224 241,020 $ 341,693 415,740    
Liquidity       Liquidity. As of June 30, 2024, the Company had $133.0 million in cash, cash equivalents and marketable securities. Based on the Company’s current cash balance, its cost reductions implemented to date, and working capital adjustments, the Company anticipates it will have sufficient funds to meet its strategic and working capital requirements, debt service requirements and lease payment obligations for at least twelve months from the issuance of these condensed consolidated financial statements. The Company also had $44.8 million available to draw from its 2021 Credit Agreement (as defined below) as of June 30, 2024 and its 2025 Notes are due in November 2025, which the Company has the ability to convert the balance due into stock under certain circumstances. If the Company is unable to obtain adequate debt or equity financing when it is required or on terms acceptable to the Company, the Company’s ability to grow its business, repay debt and respond to business challenges could be significantly limited. Although management believes its current cash resources are sufficient to sustain operations for one year from issuance of these condensed consolidated financial statements, the success of the Company’s operations and the global economic outlook, among other factors, could impact its business and liquidity. The Company will continue to evaluate additional measures, including cost reduction initiatives, debt or equity refinancing, and other similar arrangements. The current cash flow projections used in the Company’s evaluation do not include the impact of these additional measures.      
Cash and cash equivalents   $ 133,036 $ 189,913 $ 133,036 $ 189,913 $ 222,708  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount   15.00%   15.00%      
Market Capitalization Sensitivity   10.00%   10.00%      
Subscription and Service Revenue              
Product Warranty Liability [Line Items]              
Revenue from Contract with Customer, Excluding Assessed Tax   $ 26,300   $ 52,200      
Revenue from Contract with Customer, Excluding Assessed Tax   $ 26,300   $ 52,200      
Subscription and Service Revenue | Revenue from Contract with Customer Benchmark | Product Concentration Risk              
Product Warranty Liability [Line Items]              
Concentration risk   14.10%   15.30%      
Concentration risk   14.10%   15.30%      
Convertible Senior Notes due 2025 [Member]              
Property, Plant and Equipment [Line Items]              
Interest rate             1.25%
Debt Instrument             $ 143,800