XML 61 R48.htm IDEA: XBRL DOCUMENT v3.20.4
Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Line Items]      
Goodwill $ 302,828,000 $ 238,330,000 $ 238,330,000
Goodwill, Acquired During Period 64,498,000 $ 0  
Goodwill impairment loss $ 0