Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.10.0.1
Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Commitments And Contingencies Disclosure [Abstract]        
Non-cancelable operating lease expiration period     2021  
Rent expense $ 0.1 $ 0.1 $ 0.3 $ 0.3
Lawsuit filing date     November 6, 2017  
Description of settlement     On October 4, 2018, the parties reached a binding settlement pursuant to which the Company paid a cash amount to the Contractors. The Company recognized the settlement payment in general and administrative expense during the three and nine months ended September 30, 2018, as the amount was both probable and could be estimated. The Contractors filed a Notice of Unconditional Settlement on October 9, 2018, which gives them 45 days from October 4, 2018 to file a request for dismissal.