XML 48 R48.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Summary of Significant Accounting Policies - The Fair Value of Financial Instruments Carried at Fair Value (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]  
Contingent consideration $ 1,900
Total liabilities 1,900
Level 1  
Business Acquisition [Line Items]  
Contingent consideration 0
Total liabilities 0
Level 2  
Business Acquisition [Line Items]  
Contingent consideration 0
Total liabilities 0
Level 3  
Business Acquisition [Line Items]  
Contingent consideration 1,900
Total liabilities $ 1,900