XML 57 R54.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Fair Value of Financial Instruments (Details) - Fair Value, Inputs, Level 2
Dec. 31, 2019
Minimum  
Fair Value Inputs Disclosures  
Fair value assumptions, interest rate 0.029
Maximum  
Fair Value Inputs Disclosures  
Fair value assumptions, interest rate 0.041