Goodwill (Tables)

6 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill for the six months ended June 30, 2019 were (in millions):

	Goodwill
Balance as of December 31, 2018	$	254.8
Measurement period adjustments	(1.6		)
Balance as of June 30, 2019	$	253.2