Leases - Narrative (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2016 USD ($) ft²	Dec. 31, 2021 USD ($) ft²	Dec. 31, 2016 ft²	Nov. 30, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Undiscounted future lease payments | $		$ 3,786
19 Presidential Way, Woburn, Massachusetts
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Leased area (in sqft) | ft²			22,213
Security deposit - letter of credit | $				$ 229
Subleased area (in sqft) | ft²	9,874
Undiscounted future lease payments | $		$ 3,786
650 Suffolk Street, Lowell, Massachusetts
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Leased area (in sqft) | ft²		13,702
410 Downey Road and 110 Gymnasium Place
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Leased area (in sqft) | ft²		7,700
CJ CheilJedang Corporation | 19 Presidential Way, Woburn, Massachusetts
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Security deposit - letter of credit | $	$ 103