|12 Months Ended|
Dec. 31, 2018
|Subsequent Events [Abstract]|
14. Subsequent Events
On January 8, 2019, the Company entered into a lease agreement with respect to approximately 52,859 square feet of space at 35 CambridgePark Drive, Cambridge, Massachusetts (see Note 10).
The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef