XML 101 R36.htm IDEA: XBRL DOCUMENT v3.19.3
Goodwill (Tables)
9 Months Ended
Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
Changes in the carrying amount of goodwill for the nine months ended September 30, 2019 were (in millions):
 
 
Goodwill
Balance as of December 31, 2018
 
$
254.8

Measurement period adjustments
 
(1.6
)
Balance as of September 30, 2019
 
$
253.2