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Fair Value Measurements - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 03, 2019
Jun. 30, 2021
Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Short term contingent considerations   $ 3,375 $ 0
Headquarters and laboratory facilities, South San Francisco, San Diego, and Austin      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Security deposit   749 603
NanoString      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash paid in acquisition $ 40,000    
Additional cash to be paid 10,000    
Acquisition-related contingent consideration, net of current portion 6,100 7,800 7,600
Short term contingent considerations   3,400  
NanoString | Common Stock      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Value of shares issued in acquisition $ 10,000    
Money Market Funds      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Cash and cash equivalents   $ 238,800 $ 346,800