Quarterly report pursuant to Section 13 or 15(d)

Lease Agreements (Details)

v3.19.1
Lease Agreements (Details)
3 Months Ended
Jan. 01, 2019
USD ($)
Mar. 31, 2019
USD ($)
item
Jul. 31, 2017
ft²
Dec. 31, 2014
ft²
Sublease Agreement        
Number of lease renewal periods | item   2    
Lease renewal term (in years)   5 years    
Area of real estate property (square feet) | ft²     9,328 57,000
Expected income from sublease   $ 17,200,000    
Right-of-use assets   31,136,000    
Lease liability   $ 31,705,000    
Weighted average remaining lease term   3 years 9 months 29 days    
Accounting Standards Update 2016-02        
Sublease Agreement        
Estimated incremental borrowing rate for estimation of present value of lease payments   9.00%    
Cumulative-effect adjustment on accumulated deficit $ 0      
Right-of-use assets 32,800,000      
Lease liability 33,200,000      
Derecognized deferred rent $ 399,000