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Leases - Narrative (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 13, 2025
USD ($)
ft²
Aug. 30, 2024
USD ($)
ft²
May 07, 2024
USD ($)
ft²
May 01, 2024
USD ($)
extension_option
Feb. 28, 2024
USD ($)
ft²
Nov. 13, 2023
operating_lease
Oct. 31, 2023
USD ($)
ft²
Sep. 01, 2022
USD ($)
ft²
Jul. 31, 2019
USD ($)
ft²
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Oct. 24, 2022
USD ($)
Oct. 06, 2022
ft²
Operating Leased Assets [Line Items]                                
Lease liabilities                   $ 14,066            
Right-of-use asset, net                   $ 5,351   $ 5,535        
Operating lease, weighted average discount rate, percent               11.30%   11.80% 9.90%          
Lessee-paid construction costs                   $ 1,001 $ 665          
7495 New Horizon Way Leases                                
Operating Leased Assets [Line Items]                                
Area of office space leased | ft² 6,439 2,009 7,842   19,199                      
Lease term       7 years 2 months 12 days                        
Number of options to extend lease | extension_option       1                        
Lease renewal term (in years)       5 years                        
Lease agreement, monthly base rent       $ 900                        
Base rent upward annual adjustment percentage after first year 3.00% 3.00% 3.00% 3.00%                        
Lease agreement, first month's rent paid upon execution of lease agreement         $ 100                      
Lease liabilities   $ 300 $ 1,200 $ 3,600                        
Right-of-use asset, net   300 1,200 3,700                        
Tenant improvement recognized as reduction in right-of-use asset and lease liability     $ 100 $ 700                        
Operating lease, weighted average discount rate, percent     14.00% 14.00%                        
Additional annual base rent for first year $ 200 $ 100 $ 300                          
7495 New Horizon Way Leases | Letter of Credit                                
Operating Leased Assets [Line Items]                                
Long-term restricted cash                   300   300        
7495 New Horizon Way Leases | Minimum                                
Operating Leased Assets [Line Items]                                
Operating lease, cost (as a percent)       100.00%                        
7495 New Horizon Way Leases | Maximum                                
Operating Leased Assets [Line Items]                                
Operating lease, cost (as a percent)       103.00%                        
65 Grove Street Lease                                
Operating Leased Assets [Line Items]                                
Area of office space leased | ft²             5,600 7,216 25,078             7,216
Lease term               5 years 8 months 12 days 8 years              
Lease liabilities                           $ 3,200 $ 100  
Right-of-use asset, net                           $ 3,200 $ 100  
Operating lease, weighted average discount rate, percent                 8.90%           11.90%  
Lessee-paid construction costs                 $ 800              
Operating lease, expense               $ 100                
Upfront rental payment             $ 1,000                  
Right-of-use asset impairment expense                       7,400 $ 700      
Asset impairment charges                       7,600        
Impairment of long-lived assets                       200        
65 Grove Street Lease | Letter of Credit                                
Operating Leased Assets [Line Items]                                
Long-term restricted cash                 $ 1,600 $ 1,400   $ 1,400        
704 Quince Orchard Road Leases                                
Operating Leased Assets [Line Items]                                
Operating lease, weighted average discount rate, percent           11.50%                    
Number of acquired operating leases | operating_lease           2