Subsequent Events	3 Months Ended
Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	11. Subsequent Events In April 2019, the Company entered into a lease agreement (the “Lease”) for approximately 30,000 square feet that will include the new corporate headquarters and laboratory space. The Lease commenced on April 30, 2019 and will expire on April 30, 2028, with a Company option to extend the term for an additional five-years. The Company posted a customary letter of credit in the amount of $1.5 million as security, which is subject to automatic reductions per the terms of the Lease. A tenant improvement allowance of up to $1.0 million is provided within the Lease and the Company will manage the construction process. The total future minimum lease payments are approximately $10.7 million.

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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