XML 75 R64.htm IDEA: XBRL DOCUMENT v3.19.2
Goodwill and Intangible Assets - Goodwill Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]        
Measurement period adjustments     $ 436,000  
Impairment loss on goodwill $ 0 $ 2,800,000 $ 0 $ 2,800,000