Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Impact of Adopting ASC 842 (Details)

v3.20.2
Summary of Significant Accounting Policies - Impact of Adopting ASC 842 (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Net loss $ (4,950) $ (11,758) $ (8,547) $ (22,106) [1]
Depreciation     869 208 [1]
Right-of-use asset amortization     156 215 [1]
Stock-based compensation     2,520 2,742 [1]
Deferred rent expense       0
Other non-cash transactions     343 (151) [1]
Changes in operating assets and liabilities     (20,250) (6,749) [1]
Net cash used in operating activities     $ (24,909) (25,841) [1]
As reported pre-adoption        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Net loss       (22,106)
Depreciation       208
Right-of-use asset amortization       0
Stock-based compensation       2,742
Deferred rent expense       588
Other non-cash transactions       (151)
Changes in operating assets and liabilities       (7,122)
Net cash used in operating activities       (25,841)
Adjustment | Accounting Standards Update 2016-02        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Net loss       0
Depreciation       0
Right-of-use asset amortization       215
Stock-based compensation       0
Deferred rent expense       (588)
Other non-cash transactions       0
Changes in operating assets and liabilities       373
Net cash used in operating activities       $ 0
[1] (1) Restated to conform to ASC 842. See accompanying Note 2.